Datsun engined Imp. Faulty ring peice and leak rear seal

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johnh875
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Re: Datsun engined Imp. First roadtrip...

Post by johnh875 »

yoeddynz wrote:
617sqn wrote: To eat your dinner, you serve it up on a plate :lol:

Andy G
What is a plate? We just use our hands down this way. Meat off bbq, onto bun/bread, into mouth.
Can verify this, I remember seeing a kid being told to put back his paper plate at a bbq, he had a piece of bread. :D

Good luck with stopping the leak
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Re: Datsun engined Imp. First roadtrip...

Post by yoeddynz »

Peter Hurst wrote: A transaxle output shaft seal leaking, in my experience, results in the oil running down the casing and dripping off the bottom of the box with the doughnut staying dry.
You say you have sealed the spider to the spline but again in my experience that's where the transmission oil comes from if it dipping off the doughnut
Peter- I shall have to eat my hat now :-) ....

Update time. Firstly there will be no more juggling around shuffling stuff to get the Imp on the hoist, or having to drive it down the slippery grass drive that heads to the back of the workshop to get it onto the hoist. We have the workshop back after having finished building this cabin on wheels. We delivered it to its new home where the owner will continue with the build , fitting windows, door and lining it out. It was a fun job but took up a big chunk of space. Well until we start the next build. We will have a 8 metre trailer to build for ourselves soon once we sell the housetruck.

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So we could now relax and enjoy the Imp. A few little jobs completed and a fair few miles clocked up. Most important thing to sort out was a leak from the nearside transaxle output shaft. After getting back from the trip to Blenheim it was discovered that oil was coming out from what I thought was the seal and getting spun out off the coupling, marking a perfect line of oil inside the engine bay.

So the car ended up in this position getting its trans fluid drained.

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I removed the shaft, doubled checked the seal land which was fine, checked and tightened the seal by cutting a few mm from its spring because it just didn't feel quite tight enough on the shaft. I also checked the shaft too. Mine is the later shaft being a factory press fit and no nut. I was sure that it fine and solid but just to be sure I cleaned and siliconed the end of the shaft visible from outside. Just in case...

Put it all back together, a few drives and the leak was still there. I took the shaft out again and checked it in the vice. It was indeed loose. Loose enough that it could move in and out slightly and had broken the silicone bond so allowing oil to creep past the splines and out. It must have been getting worse as the oil was essentially lubricating the once tight fit of the splines. Peter... you were correct!

It knocked apart easily, showing the factory O ring fitted before they press them together. Once clean and dry I tried the fit. It was a touch too loose for my liking so out with the JB weld epoxy. It'll never leak again :)

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Yesterday we drove to Nelson and back and I'm happy to report that the leak has stopped ! Yay. Now the only real leak is a dribble from the rear main seal on the engine. I'll change that when I change the worn ring gear in the future.

Another job was to sort out some sounds. I like my music and not having a sounds system in a car on long trips is annoying. I had already eyed up and sussed where I would mount some speakers. It seems a fairly common place after having looked at other setups out there on Imps.

We had scored a JVC headunit from a customer after upgrading their setup. Then we had scored some speakers from a Nissan Bluebird SSS we had been given and passed on but not before robbing its sounds. I also had some ply left over from lining the rear of the Viva wagon floor. So sorted for a cheap as setup.

We made some boxes in the sunshine on what was a cold day....

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Later on the sun hid behind clouds so all three of us moved over to the warmth of the log fire....

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After Hannah covered the boxes in black vinyl I mounted them under the parcel shelves and wired in the head unit, a neat little unit that due to not playing cds is shorter in depth so fitting under the shelf nicely. It all looks neat enough and sounds fine for the size. Just need to find some protective grills to suit those speakers. Next on the list is to get and active sub and mount it under a seat so we can have some fuller, deeper sound.

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Another job I had planned to do but kept being put off was to hinge the front number plate. I don't want to mount it any higher and block the grill so where it is makes for a great driveway crown sweeper. Driving along our 500m long stone driveway in a lowered Imp with an even lower number plate gets tiring!

So I did this...

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I'll report back with whether it also swings back at 170mph so avoiding speed camera tickets.

The other night we had a lovely sunset and the Imp was looking resplendent in the light. I took a photo..

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Next jobs to do are fit some carpet and I'm still really keen on pursuing building a full EFI setup. But its going to be a very busy summer for us so that will have to be a project I pursue in the evenings.

We are heading over to England next week. I'm really hoping to make it along to the Retro-rides gathering. It'll be my 5th one if I do. Quite excited! I do hope there will be some other Imps along but even if not I just know there is going to be a superb selection of awesome cars turn up.

Hopefully see you there.

Alex
Last edited by yoeddynz on Wed Jul 17, 2019 7:33 am, edited 1 time in total.
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Re: Datsun engined Imp. Leaky splines and flappy numbers...

Post by johnh875 »

Nice update (as always). Looks like the tiny house thing has hit NZ too, and interesting set up with the slide-out.
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Re: Datsun engined Imp. Leaky splines and flappy numbers...

Post by yoeddynz »

Cheers. We built slideouts on our housetruck. They make a huge difference to the feeling of space so it made sense to add one on this. I don't know why other tiny house builders don't do them. It's worth the extra effort and bit of weight.
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Re: Datsun engined Imp. Leaky splines and flappy numbers...

Post by Lotus-e-Clan »

A quality job - multi-talented guy! 8)

Just need to add a couple of vertical v-shaped aero panels to the front faces for trouble free 80 mph motorway bashes (assuming no crosswind) :shock: . Clan004
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Re: Datsun engined Imp. Leaky splines and flappy numbers...

Post by yoeddynz »

I could add an adjustable counterweight that can be changed from the dash. Adjust it to suit the speed zoning one is driving in the most.
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Re: Datsun engined Imp. Leaky splines and flappy numbers...

Post by tiker »

Liquid nitrogen pumped from one area to another for different weight distribution possibly a bit too advanced for the road
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Re: Datsun engined Imp. Leaky splines and flappy numbers...

Post by johnh875 »

Like racing yachts - pumped ballast! You would have a water tank, right?
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Re: Datsun engined Imp. Leaky splines and flappy numbers...

Post by The Nun »

It might handle like a Tesco petrol tanker :o
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Re: Datsun engined Imp. Leaky splines and flappy numbers...

Post by yoeddynz »

So many awesome ideas. The power of a good forum :-)
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Re: Datsun engined Imp. Leaky splines and flappy numbers...

Post by yoeddynz »

Well its been a while since I've updated this thread. Mid July was where I last posted up anything of worth. Little Imp got parked up in the corner of the workshop so leaving anough space for our neighbours to make use of the shed while we took off to England for a decent holiday. Hannah got to catch up with her family, we both did heaps of cycling and running, had plenty of sunshine and beer plus I got to go along to the retro-rides gathering 2019! As I always do I had a fantastic time there and came away with boosted Mojo and lots of ideas. Before leaving the UK I ordered a few spare parts for the Imp. Thanks so very much to the awesome, very friendly services of Bob who looks after the Imp club spares :-) ....

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We got back to NZ in September, just in time for the start of spring. The Imp was sitting there tucked away, a tiny little puddle of oil under the sump just like a good little English car should have...

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First job was to fit the shiny new lenses. Hannah jumped straight into that, an easy but so very satisfying job to do...

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We then took the steering rack out and fitted the new centre gaitor. Hooray for a rack that holds oil...

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Having decided I was pretty happy with where the temp gauge needle sits once fully warmed up I carefully measured the resistance across the potentiometer I'd been using to adjust it. I then made a little joining lead fitted with a resistor of the same value. This replaced the adjustable item and should be it for the temp gauge. At some point in the future I may well make a new instrument cluster to suit the dash as I rather fancy having a rev counter in a place that I can actually see it ok.

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We have been driving the Imp since getting back to NZ as much as possible. On its first journey out since back I got this pic...

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We've had a few decent trips including a one really neat drive all around the local valley roads and hills, some gravel roads etc. Its so fun to drive. I'm really getting more confident with the handling and how to get the most from it. The engine seems fine and loves a good trashing. The carb is still a bit iffy with that worn out primary spindle still allowing some air to sneak in. I have ordered a new carb from China and will see how it goes. It was cheap enough to try and when I eventually fit injection I can sell the carb on. Whilst out on that really fun drive I got this photo. Shame I only had my phone as the sky was quite moody...

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After lots of driving I checked the plugs. They look fine with what I think looks to be a good colour...

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I thought it better to fit the fire extinguisher I bought before our holiday. It tucks away neatly behind the drivers seat...

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In other news I have been collecting many different parts needed for a conversion to fuel engine management. I just scored another megasquirt one (2.2) ecu plus a full loom and some edis bits - this time from our mate Rob in return for me doing some machining work for him...

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I need to decide on a few bits needed and also in which direction to go for the inlet layout. Maybe Itbs but maybe a plenum with a single tb. I foolishly dillydallied about when there was a full set of cbr900 ITBs on trademe for $55 including injectors and loom and subsequently missed out on them. At the time I wasn't sure about the suitability but for that money I could have made them work. Not sure on ideal throttle size but they were 40mm each which given the Datsun only has 30mm inlet valves I figure they'd have been plenty.
Then I would have had all of the doorts! I'll keep looking...

I'll be using a 36-1 trigger wheel, also supplied by Rob :) Luckily there is ample room to mount it on the back of the main pully.

Both MS1 ecus I now have use the earlier version 2.2 board which don't have built in VR conditioner circuits. I can make a VR conditioner board and use VR sensor, of which I have many.

Or I could use the Edis setup (which has a VR conditioner built in and uses a VR sensor) that came with the MS1, of which I suspect the ECU has been supplied already configured to use. I have never used Edis before. Hmmmm? Its a bit ugly and clunky though. I dont like the quite large ignitor box I'd have to sit somewhere.

Or I can go with a Hall sensor but then I'll have to locate one from a wreckers- but what car? As usual I want to do this conversion as cheaply as possible because its just more satisfying for me that way. In my first few casual searches it seems that they are quite pricey and can be a bit frail or temperamental in use? More research is needed, of which I must say I do find to be one of the most fun parts of modifying! :)

Oh also - I fitted a new speedo cable and now have a speedo needle that doesnt wibble-wobble all over the place. How thoroughly modern!
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Re: Datsun engined Imp. Now pondering fuel infection ideas....

Post by bazzateer »

Love reading your updates. By UK standards my garage is pretty good but looking at yours certainly gives me garage envy! :mrgreen:
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Re: Datsun engined Imp. Now pondering fuel infection ideas....

Post by paulchin »

Great reading your updates as always!

For the "clunky" nature of the EDIS coil pack, there is a smaller version, fitted to later Ford cars (KA etc) which I always thought would look fine fitted where the dizzy cap used to be - after all, that's where the HT leads will now come from, so it would almost look original at first glance?

(I collected a whole MS/EDIS set years ago, only to sell the Imp before ever fitting it - so moved it on to a well-known Imp enthusiast. Not sure if he ever fitted it either?)

Keep the updates coming!
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Re: Datsun engined Imp. Now pondering fuel infection ideas....

Post by yoeddynz »

Thanks fellas for the kind words.

I'm thinking of hiding the coil upside down under the parcel shelf, as I have with the single coil currently used. Hopefully that'll be fondue away enough. I'm looking forward to seeing the dizzy removed for an even cleaner looking engine.

Looks like I've just scored a set of 36mm cb900 itbs as well - from a friend on oldschool.co.nz forum

I'll put up some pics soon. Hopefully they'll be fairly easy to install in a neat enough fashion. Otherwise I'll still go down the common plenum with a single front mounted tb
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Re: Datsun engined Imp. Now pondering fuel infection ideas....

Post by 617sqn »

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Re: Datsun engined Imp. Now pondering fuel infection ideas....

Post by yoeddynz »

Sweet- cheers. Yeah I have even more room under the shelf further forwards so I'll move it there :-)
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Re: Datsun engined Imp. Now pondering fuel infection ideas....

Post by yoeddynz »

So Hannah and I took the Imp for a two day road trip. Part business and part holiday. On Friday we drove up to Lake Rotoiti, Nelson lakes national park. On the way we checked out some old classic cars a fella owns who wants me to do a load of bodywork on. The Imp drove really well. The sun was out and the music cranking (some ambient tunes from David Tipper since you ask). We had a good coffee and then a nice walk on tracks around the lake. That evening we drove through to my olds place in Blenheim. A nice day out. Here's some photos...

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Chilled out at my parents, a feed of fish and chips, wine. A grand way to finish a day. Following morning we set to head home. Filled the Imp up, did some maths and allowing for a very optimistic speedo we reckon on around 40 mpg. Not bad considering the gearing at 100kph. Headed home, sadly into rain as a cold front was moving up the Island. Drove long way via Picton and Queen Charlotte drive because narrow twisty roads and go kart car...

Over the Rai Saddle, sitting with the flow of traffic. I give the car some stick to pass a motorhome up the saddle and then when cruising down the other side the wee car does that thing....

'JOLT!' The car does a small but very noticeable stumble. Like a tiny rev limiter. For those that have tuned megasquirt, or maybe other EFI, it felt like when you click burn.

"What was that?" Hannah asks.

"Shit- I don't know but it felt like an ignition thing, not spluttering fuel thing" I reply.

We both go quiet. I almost want to turn the music down and listen for any untoward mechanical sounds that might be there. But I don't. I'll play it cool. Don't worry. Don't get Hannah worried. It was probably just a...bother... I don't know?. I'll just say nothing, drive a little slower and whatever it was will be a memory soon.

The silence is piercing. Now I notice every bl***y vibration. I'm watching all the gauges like a jet pilot. All the time my mind is going through all possible scenarios. What could that have been. What if we breakdown?

3km pass. It seems ok. I start to relax. Only one big set of hills to go. I pass another rental car, most likely the scurge of the kiwi roads, a Nissan Tiida. I dont know because I'm still having a mini stress..

'JOLT'. Here we go. This is happening. This time its for good. The car dies and I have to quickly think where I'm going to stop to fix it and quick before I slow too much and that silver blob I just passed drives up my bum. I spot a forestry road on the right, coast across to it (whilst trying to make it look like nothing is wrong so saving face for all classic drivers who get the "oh old cars are so unreliable...")

I pull to a stop and the engine splutters to its last road driven rotation with a bang.

bother. Remain calm. Reception on phone? Not a chance. Tool kit in boot comes out and we go through all the obvious things, concluding that it is indeed the ignition. Annoyingly it was the ignition module, of which I didnt have a spare. If it were points I'd have fixed it. Such is life. Luckily the rain had stopped and double lucky that across the road from the forestry road we parked on was a farm house. The kind farmers wife took us in, let us use her phone and fed us tea and biscuits. I called a mate out with his trailer. We have AA membership however its the basic cover that would have got us to a garage. I knew a Garage wasn't going to fix this and we'd still have to get home. Yeah nah. Stuff that.

Mate turns up with his trailer and we have a choice as chilled out trip home. We fed him dinner and it was all good in the end. I only took one photo of the day...
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So that was that. On Sunday I removed the dizzy and then the module. It fails the tests as predicted. Here's the troublesome module...
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Come Monday and at my local wreckers looking for a module. I dont want to spend $120 on a new one when I'm about to fit full engine management.
No luck locally but we were in Nelson on Tuesday and I found one at a wreckers there, cheap too.
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Fitted it that night and brooooooommmmmm :) The replacement was a proper Hitachi module whereas the one that let its smoke out was a no brand cheap one. Even felt lighter if that means anything. I took the broke one apart and it looks like a little cityscape inside- heck it would scare a Barry used to the kettering system...
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I also managed to score a spare couple of dizzies, converted with accuspark. My bench looks like a bomb went off in a hitachi factory...
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I'll need to fix them up, check them out and then I could always have a spare setup in case. That is until I fill the Imp with boxes of electronics and then there's no chance Mr AA man can help me. It'll be like every modern car- useless when broke.

In other news- this turned up from China the day we left for the lakes...
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Its a brand new Hitachi 306 clone, all for not much more then a full carb gasket set costs. I had ordered this before I had scored all the other Megasquirt bits. Anyway- I'm still looking forward to trying it out because my worn out carb is about as good as I can get it. The new one looks so shiny. I'll report back with my findings on how deep the quality goes...
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Last edited by yoeddynz on Wed Oct 09, 2019 7:27 pm, edited 1 time in total.
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Re: Datsun engined Imp. Now pondering fuel infection ideas....

Post by 617sqn »

Wow ! Quite an adventure ! Ignition modules giving up are a bit of a sore point with me at the moment. Not Stan as he has EDIS, but on a local members car. Saga goes on....

Fab images too. Hope all goes well with the Itchyfanny carburettor, but megasquirt will be the ultimate tuneable answer.

Keep the updates coming 8)

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Re: Datsun engined Imp. Now pondering fuel infection ideas....

Post by yoeddynz »

Cheers Andy. Yeah I'm looking forward to having full scale fuel infection. All those little components that could let their smoke out at any time.. Makes for a grand adventure :-)
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Re: Datsun engined Imp. Now pondering fuel infection ideas....

Post by Lotus-e-Clan »

yoeddynz wrote:
Wed Oct 09, 2019 7:00 pm
Cheers Andy. Yeah I'm looking forward to having full scale fuel infection. All those little components that could let their smoke out at any time.. Makes for a grand adventure :-)

Once you have it, I hope you intend to use antibiotics only if really necessary. :o

If you rest it up in a warm garage and wait a week, the car's adaptive immune system will probably resolve the issue without the use of antibiotics. :wink:

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Re: Datsun engined Imp. What was that?!!....

Post by yoeddynz »

Imp001 :( :oops: :idea:

I was looking for a poorly looking smilie but that's all I could find.

This is actually the first time I have had to call out a trailer in NZ to get rescued in a classic. The last time I called the AA was for our Nissan Sentra, which funny enough (though not at the time..) had a failed coil.

I ran my Viva with Megasquirt for quite some time until I sold it and it never let me down when out on the road. But I still believe that for outright reliability and a sense of dependability a single carb and points ignition (so long as you have a few spares in the boot) cant be beat. But I don't live in Australia, 100s of km from anywhere so I'm happy 'risking' this new fangdangled modern technology.... I mean it cant be all that bad- all new cars are apparently more reliable then our old cars eh!... :? :roll:
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Re: Datsun engined Imp. What was that?!!....

Post by yoeddynz »

Crikey! Its been over 3 months since I last updated this thread. The reason being I have been busy just enjoying summer and driving the Imp whenever I can. Its such a hoot . I'll use any excuse I can to take it for a hoon. We have now covered over 3500kms since getting it on the road at the end of May last year. Considering we work from home so no commute I was quite surprised at how much its had! Its been incredibly cheap to run (very easy to get over 40mpg while still having a laugh) and is sooooo much fun to trash along on windy roads. The reception we both get whenever either of us uses it for a shopping run etc is fantastic. It really does make people smile- which is nice :-)

A few various friends, some from Oldschool, have also taken it out for a good thrash. Its really interesting seeing how different people drive it, their style, ease with the handling and gear change, confidence. Generally they have all found it super easy to drive and all seemed to love the handling. If only it had another 50 bhp...

I have done a few little jobs here and there to improve it. Back in the last exciting episode I left off with some sexy photos of a new Hitachi carb. I swapped the relevant linkages/cable stops I had made for the previous carb across onto the new one , bolted it in place and hoped for the best. Started the car up but flooded it because the new carb seems to have a more effective choke. Cleared it and started it proper. Straight away I noticed how better the engine sat at idle. I few twiddles of both the throttle stop screw and the idle mixture and I had it running sweet at idle. I then took it for a hoon up the road. WOW- what a difference. No more flat spots, the transition off idle was smooth as, the transition onto the secondaries was smooth. No stumbling when coming to a stop and a super smooth idle. The jerkiness at slow speed in high gear was gone. Overall a huge improvement. Best $120 I'd spent in ages!!

Here's a pic of said wonder carb..

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Next job on the list was to improve the brake pedal feel. They work really well but I would still prefer a firmer pedal. I knew that the original Honda Civic brake hoses on the front were far too long, needlessly long. So that was a good place to start. I ordered a pair of new stainless braided hoses from Nelson brake services, impressed I was with the previous set I had them make for my Viva. $55 each which is a bargain.

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I fitted them and noticed a big improvement in feel. much nicer firmer feel with a better defined bite point on the front. But it can still be better and I think that its possible the brand new Lada master cylinder fitted has a slightly weak seal. If I press hard on the pedal and hold the pressure the pedal will slowly sink. I can also pump the pedal up a bit harder and I have done so many attempts at bleeding it I am pretty sure there is no air in the system. @NickJ ever so kindly sent me a spare set of seals he had. However Nick has warned me that they are from the same vendor he got the master cylinder from, which did come wrapped up in newspaper with these two fellas on the front...

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Interestingly the seals are a odd shape I have not seen before in a brake cylinder. They have a curved edge, like a worn o-ring outer rather than a lip that is forced against the bore like most brake seals I know....

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I thought this was possibly the problem but after some googling it turns out that this master cylinder design and bore diameter is a very commonly used item across many Fiats, ladas and some other brands. So the seal design must work fine in use.

Hannah's mum has come over from Blighty for a holiday and essential sun. So over a few weeks previous to her boarding her plane I kept an eye out on Ebay UK for anything interesting. She ended up bringing this stash of goodies...

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Apart from the very obvious Marmite with proper actual taste I bought a Haynes cutaway book filled with lots of Terry Davey's best pics, plus two old magazines with road tests on Imps- one of which was printed at the release of the Imp and is filled with heaps of articles, photos and fold out pages with extra large exploded diagrams. A total treat for any Imp nerd and one which kept me thoroughly delighted while reading it in the sunshine on coffee breaks...

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Lastly and more recently I have decided to sell on my Viva wagon. I'm not using it and have utterly fallen for the charm of the Imp. I would rather someone else make something of the wagon and what money I get for it can go towards this car (as well as another few projects in mind, and probably pushbike stuff...)

So with that in mind I decided the VIva did not need fancy Recaro seats but the Imp does. The Mx5 seats are ok but not quite as figure hugging as I like, nor do they seem to offer the same lumber support that the Recaros do.

Plus the Recaros just look so damn nice and fit in well with the little nippy go kart like car ethos I like in Imps. I was worried about them being a lot heavier but they only weigh 3kg more each. I can live with that for the comfort they offer!

So I had to add some slightly wider spaced mounting points. Because the mx5 seat mounting points were welded on the back/inside of the box sections before they were welded on the floor I had to instead make up some flanged threaded bosses...

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which I then tigged in place (rather then risk mig splatter everywhere)...

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It was when tigging I remembered the steel was zincalume and made my welding a bit messier then I had hoped as the fumes came through...

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But all good and strong. I shortened the reach adjust levers while I was at it..

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I also had to fix the mountings for one of the plastic covers which no matter what I did with the old push in plastic rivets would always come loose and rattle about . I machined some wee stubs and epoxied them in place...

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This (blurry..) pic dates the seats somewhat... (kids- ask your parents)

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I finally mounted them in proper and they look great. Much better to sit in and they also swing forwards further than the Mx5 seats - which to be fair really were never designed for a car with rear seats were they.

The Recaros have a more suiting mixture of grey and black which suits the interior better I think. However I'll still keep looking for some suitable red leather sports seats much like the ones in my previous Viva for they were the best looking seats I've yet seen, although being slightly wider for 'larger" Alfa Romeo drivers and covered in slippery leather they were in use a little less hugging than these cloth Recaros.

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So that lot takes us up to date. Next on the list is to fit some carpet, now that I seem to have finally sealed the windscreen properly although the car has not seen much rain recently- its been so dry here since the start of December.

I'm still tempted to play with injection. I bought a spare engine for $100 from the local wreckers. Its a 1500 and has the later oval port head. Larger ports and larger valves. We stripped it down together and its pretty good as far as wear goes on the guides etc. Certainly a good head I can clean up and fit without any machining. I have a inlet manifold to suit. However.... I may still yet re-power it with another engine, yet decided on. I do really like the idea of regaining my rear parcel shelf, currently cut to allow the valve cover to go through, because its missed and would be very handy for the weekly shop!

Datto engine in the van after pickup...

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A tiny little tool box a found at the warehouse which was just soooo cute I had to get it...

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Goes here..

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A tiny little trailer we built for some locals kayaks. Had to size it up...

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I sold the race car shell and it headed south to Queenstown on what was a comically huge transporter. Fark I laughed...

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My Imp making other normal cars look huge...

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Finally my parting shot- because well... I just like this photo :-)

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617sqn
Posts: 4716
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Car Model: Hillman Imp 1972
Location: Sussex, England.

Re: Datsun engined Imp. New thrones....

Post by 617sqn »

Excellent update and well worth the wait ! 8)

Andy G
Member No. 7500, and Stan's best mate.
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colimp66
Posts: 1108
Joined: Wed Dec 17, 2008 8:17 pm
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Car Model: 1970 Hillman Imp Deluxe.. "The Pest"
Location: Dunbar, East Lothian, Scotland

Re: Datsun engined Imp. New thrones....

Post by colimp66 »

Another great update indeed as Andy has already said.

I doubt you can beat the comfort of a Recaro and they seem to suit the Imp so well. Fishnet headrests remind me of 2.8i Capris, RS2000's .. Cool seats. :wink:

Cheers
Col.
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yoeddynz
Posts: 376
Joined: Thu Sep 03, 2009 7:10 am
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Car Model: 1965 Hillman Imp with a Datsun A12 powerhouse.

Re: Datsun engined Imp. New thrones....

Post by yoeddynz »

Thanks fellas. I was weary of fitting the recaros at first, thinking they'd look too modern. However once in I think they suit sort of modernised retro look I like. Good enough for now while I 'continue my search for the perfect perch'..
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yoeddynz
Posts: 376
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Car Model: 1965 Hillman Imp with a Datsun A12 powerhouse.

Re: Datsun engined Imp. New thrones....

Post by yoeddynz »

Well I must say I do love the new Recaro seats. They are so comfy and hold you in place soooo much better in the corners. I had still been using it heaps through summer. Got a shot of it next to an I8. Huge cars!!!...

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What else? We took the Imp over to Blenheim for the big classic car show they have there. Its getting bigger every year and I have kept missing it each time. Not this time though! The weather was a perfect Med like blue sky day and the cars that turned up for the show were a really nice mix of everything. My parents came along too. My dad is 88 and not too fast on his feet having pretty bad lungs now. I was worried he would struggle but I kid you not- he seemed to perk up more every minute and flitted about all the old cars really quite animated. It was great to see and I'm so happy he made it along. Mum loved it too and we met some great people. Pics..

The show..

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Dad pondering if he could have fitted a V10 into his Moris traveller he once had, or maybe the 120y wagon they had...

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Hannah's favourite car of the show (and her dream car)...

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Some sweet old boats there...

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Me next to dad, holding a 8 month old Kelpie puppy(my favourite brand of dog, we used to have one)..

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The Imp (wtf the Toyota Pius was doing there we don't know..)...

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There was actually a car there that made the Imp look huge...

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The Imp was popular, being bright blue and the only one there. Lots of people checking it out all morning. I printed off some photos of the restoration onto a4 sheets and stuck them in a plastic binder with a quick note for each. People I spotted seemed to enjoy the read and I imagine it made for more admiration for the little car that was rescued from a field.

The trip to and from Blenheim was fun and uneventful. The Datsun engine impressed again with its thriftyness by managing 44.8mpg and that was with some spirited motoring too :)

Drove some nice roads near my old home town. Very very dry over there and sadly they still have not had much rain. But fantastic grape season if that's your thing.

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Once back home I decided to put the car up on the hoist and deal to a couple of jobs I have been putting off. Those of you with a good memory may well remember the state of the ring gear. It was worn badly in two locations, 180 degrees apart. This meant that it had a 2 in 4 chance of stopping roughly near one of those spots. It seems that sods law dictated a sliding scale of when it would stop and this scale was linked to how many people are around when I would go to start the engine. Worse if those people were probably of the type that think 'oh that a nice old car but they are very unreliable'. When the time was right the starter would ignore my want for turning over the engine and instead may a horrible loud racket as it wore the ring gear worse. I would have to then sit the car in 4th gear, put my foot out the door and rock the car- so moving the flywheel around just a bit. Then start the car and drive away red faced as the people now watching tut tutted...

Never did it do this on our property btw...

The other thing was that the rear main seal was leaking badly. Bad enough that the clutch was playing up and I'd have to think carefully about where I was to park the car when going to the country club* for fear of meeting those same people again and only going to reinforce their misguided opinions about old cars.

I had the chance to replace the seal when I took the engine out way back at the beginning. But remember who I am - a tight wad who likes to save money and $25 seemed like an awful lot for a seal that 'looked ok'

Silly me.

So out with the engine then. Made easier by using my special custom made bespoke 'Datsun A12 engine cradle'

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Here's the worn ring gear. I drilled it and broke it off.

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Removed the old seal. It was indeed very hard and not very sealy. More like a ceramic ring then a seal..

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The oil had coated the clutch disc..

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Luckily that cleaned up sweet with a load of brake cleaner and was deemed good to use (please refer to note above about tight wad..)

Went to my old workplace, Autofocus in Nelson and used the gas set there to remove the good ring gear from another flywheel that came on the A15 engine I had bought. I then dropped it onto the A12 flywheel...

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With that done the engine was given a quick clean whilst out and slung back in place. Oh but not before making using the opportunity of an empty engine bay to size up a different engine. That however is secret squirrel and will be announced later in the year :)

The Datsun was all plumbed and wired back up. It started straight away and after bleeding the coolant system I took it for a hoon. Clutch feels great and no horrible starter noise roulette...

However..... the bl***y speedo gave up and decided that the needle should reside at around 90 mph. It had been getting ever so more optimistic over the last few months and I had read that the springs can weaken. It doesn't affect the odometer which is mechanically linked to the speedo cable, just the speed reading. Now though, having just fixed some other issues my 'unreliable old car' decided to throw another at me. When I returned home from said hoon the needle decided it would resolutely remain at around 60 mph even when the wee car was stationary.

So this happened...

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I'm so glad that I had added plugs to the wiring birds nest that resides behind the instruments because it made removal much quicker and easier. I took the speedo apart and found this...

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It seems that the sponge sealing which fits between the telltale warning lamps and the speedo face had broken down and crumbled into the speedos magnetic disc area so creating drag. I'm not sure but it was messy in there with lots of friction. Rather then muck about trying to clean it all out I instead pulled the spare speedo head from my stash of Imp parts and fitted that instead. I removed all traces of the old foam, opened my little alladins drawer of various foas and double sided tapes and stuck on some new stuff...

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This lot will be binned in the future as I fully intend to replace the whole cluster with nicer modern gauges (but with a classic style to them) including moving over to an electronic speedo head. Speedo cables and all their wobbles can leave by the back door thank you please.

So since the world has gone a bit weird and we all have extra time I decided that instead of refitting the dash into the car in the poor evening light I would instead do an update. I'll refit it tomorrow. One other job to look at is a rattle from the steering rack. I think I know what it is and I have already stripped and inspected a good spare that I might swap in. Other than that I'll just get back to using the Imp, obviously only for shopping purposes at this point in time. I now have plenty of other tinkering jobs to do and hopefully in the next update there will be some very exciting news :)

* I don't actually belong to a country club. But I do like a spot of lawn bowls....
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617sqn
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Car Model: Hillman Imp 1972
Location: Sussex, England.

Re: Datsun engined Imp. Faulty ring peice and leak rear seal

Post by 617sqn »

Great update ! That classic show was quite a size, eh ? :shock:

Now, it seems to me that, bar tiny tiny problems, this Imp is sorted as is, I reckon you should find another one for the newest engine transplant. Know what I mean ? It would be a right shame to have to "ruin" it, as its so good. And what if the new engine requires other body mods ? You might rue the day, especially if you one day want to return it to Datsun power.....

Just thinking....

Andy G
Member No. 7500, and Stan's best mate.
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yoeddynz
Posts: 376
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Car Model: 1965 Hillman Imp with a Datsun A12 powerhouse.

Re: Datsun engined Imp. Faulty ring peice and leak rear seal

Post by yoeddynz »

Yeah I do know what you mean Andy :-) But there's a few reasons I won't be doing it that way.

I cant afford another Imp (I can't afford much right now ....)

I do have a spare shell but its far too rusty in areas that I dont want to deal with. I've decided I'm not ever going to take on another rusty restoration because I personally feel that life is just far too short to muck about with multiple cars of the same make/model. I have other project plans, one of which is to build my very own spaceframe sports car. I'll never get around to that if I keep dealing with rusty cars :lol: I've sold my Viva wagon due to the fact it gives me some money for the Imp project plus I dont like owning lots of cars. Even though we have plenty of space I just like having a couple.

Another reason I want to re-power this car is because as great as the wee Datsun engine is (and they are fantastic engines!) its still not my cup of tea. In the beginning I happened upon a Imp race car cheap with that engine installed and certified for it. I continued with it because it was the cheapest way at the time to get an Imp on the road legally here in NZ, with an engine that offers much more usable grunt then an Imp engine.

But- I dont have my parcel shelf!!!! I miss not having the use of that. Its one of the really neat things with standard Imps and makes for a great shopping car!

I also like to evolve my cars. I did so with my Viva which went through 4 different types of engine. Its just a fun way I like to do things.

I'll be chopping the spare Imp shell up. Using part of it as a jig , the roof for a shelter, the front might become a letter box :-) It owes me nothing and I had offered it out for free for ages with no takers! So it will now become useful to me.
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bazzateer
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Car Model: 68 Chamois Sport, 72 Imp Sport, 67 Vogue, 69 Vogue
Location: Watford and very occasionally Fareham

Re: Datsun engined Imp. Faulty ring peice and leak rear seal

Post by bazzateer »

yoeddynz wrote:
Sun Apr 05, 2020 7:51 pm
I'll be chopping the spare Imp shell up.......the front might become a letter box :-)
Yes! do this, brilliant idea!
If I told you I was a pathological liar, would you believe me?
Barry Blackmore - Chiltern ACO, apparently.......................
The Nun
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Car Model: Imp x 2
Location: South

Re: Datsun engined Imp. Faulty ring peice and leak rear seal

Post by The Nun »

Big letter box, how large are the letters there? :shock:
Peter Nunn...ey im member 00033
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yoeddynz
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Car Model: 1965 Hillman Imp with a Datsun A12 powerhouse.

Re: Datsun engined Imp. Faulty ring peice and leak rear seal

Post by yoeddynz »

Supersize :-) especially if I order many car parts from rock auto. Com etc
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bazzateer
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Re: Datsun engined Imp. Faulty ring peice and leak rear seal

Post by bazzateer »

Amazon parcel safe!
If I told you I was a pathological liar, would you believe me?
Barry Blackmore - Chiltern ACO, apparently.......................
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617sqn
Posts: 4716
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Car Model: Hillman Imp 1972
Location: Sussex, England.

Re: Datsun engined Imp. Faulty ring peice and leak rear seal

Post by 617sqn »

True. Might need one myself. Round here, Yodel drivers like to drop them over our back gate. No matter what the weather. And take a photo of it to rub salt into the wound. No card either, so unless it's expected you don't know it's there. :?

Andy G
Member No. 7500, and Stan's best mate.
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