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

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yoeddynz
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Datsun engined Imp. What was that?!!....

Post by yoeddynz » Fri Feb 09, 2018 7:50 am

Ooooooooohhhhhhhh. I have just had a new project delivered. What could it be?

Now if any of you lot on here already know the answer from other forums you might frequent then don't be a silly sausage and spoil the fun. Let the others play guessy games. I have tried to take some shots that only cars nerds might recognise. Lets start with this...

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Last edited by yoeddynz on Wed Oct 09, 2019 7:01 pm, edited 20 times in total.
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Re: Alex's cryptic 'new project car' guessing game...

Post by The Nun » Fri Feb 09, 2018 9:05 am

From that I do know its nothing to do with IMPs, not what I would call a real IMP anyway :?
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Re: Alex's cryptic 'new project car' guessing game...

Post by mikeyhearne » Fri Feb 09, 2018 1:49 pm

is it the timing mark on a BMW bike engine ?
nothing is IMPossible with the right attitude and a BIG hammer
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Re: Alex's cryptic 'new project car' guessing game...

Post by yoeddynz » Fri Feb 09, 2018 7:08 pm

Nup. Not BMW. I'd love that though... But sadly donor bikes are too spendy here in nz.

Here's another clue... Guess the engine.

Image
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Re: Alex's cryptic 'new project car' guessing game...

Post by bazzateer » Fri Feb 09, 2018 8:23 pm

Ford?
If I told you I was a pathological liar, would you believe me?
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Re: Alex's cryptic 'new project car' guessing game...

Post by colimp66 » Fri Feb 09, 2018 9:44 pm

Pre crosslflow 1500 in the back of an Imp.
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Guessing game is over

Post by yoeddynz » Sat Feb 10, 2018 12:45 am

OK.. I cant wait any longer. I'll spill the beans...

I now have my very own little Hillman Imp!

A local fella by the name of Rob, who frequents these pages I think more as a reader, came up to me in the supermarket car park a few months ago. He said he'd read that I was after an Imp and offered me his Race Imp at a price I just really couldn't turn down. It does need lots of work as he had stacked it big time in a race a few years back. He pulled it all out straight on a chassis jig and continued to use it however it needs a really good tidy up. At Robs last race event with this car a large bump threw the gear linkage and it got stuck in gear, with possible damage to the box being unknown as yet. He took it home and it has then sat in his shed for a while.

So after a few ums and ers, a bit of consultation with Hannah I made the decision to sell my Datsun 120Y project. The 120Y is going to a mate of mine from NZs premier classic and retro car forum which I frequent most of the time, Oldschool.co.nz, to free up some space, time and money. I then agreed to welcome this little Imp into my life.

Rob sorted the linkage out so it would roll and he kindly delivered last night...

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Here it is being unloaded by Hannah and Rob with me excitedly taking some photos.

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Off the trailer and after Rob left I snapped some more photos. Kevin approves...

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I just love the look from the back. It has a fiberglass 'sport' replica cover. I'm gonna brace that and add some hinges. Such a sweet shape...

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The big bonus points that had me are the following. Its registration is on hold, its fully certified for the engine swap and other mods and its honest. Its come with enough spare bits, of which I'll work out what I plan to use and I can hopefully sell on some bits to fund the restoration.

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The steels fitted to it are my old 13x6 Viva rims Rob bought off me ages ago. Luckily the Certfication plate is an older one which just states the wheel size, not material. This is great because these are well made wheels and I have a full set of stainless Viva hubcaps to fit them..

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The previous owner Rob is a top bloke and seems keen on seeing what I make of it. This is also nice. He has bought a older Corolla race car and that's his new toy. So everyone is happy! (including Hannah I might add...her first classic she bought was a little Imp)

The cage is legal and has its ticket etc (or the car has its motorsport association nz card or what ever its called) but, and I realise some of you might cry at this, I am going to remove the cage. I really cant be dealing with it. All I want is a nice fun road Imp and I'm more concerned that its reliable and peppy) In order to legally drive the car on the road with a full cage I would have to join a local club, join manz, compete in 3 events a year. I'm just not interested in that. Fully caged road cars would become a pita for any daily use IMO.

The seats are just spare, not bolted in. It had a full on race spec seat fitted which Rob has kept..

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The underside has had a beating but rot wise its pretty solid. There are a few repairs that have aged so I will just have to go through the whole lot and tidy it up.

I have also bought another Imp from down in Chch and that will hopefully be heading up this way in a few weeks time. Its pretty solid up top and is complete. I had previously looked at this Imp a while back, having first seen it when we visited the old car playground with a bunch of other oldschoolers. I had lined it up to buy for $200 along with whatever other Imp parts I needed. But I later decided it wasn't the time to take on a rusty imp resto. However, now was the time to take it on because its going to be mighty handy. It has sat here in this car graveyard for many years...

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The inside..

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Good headlining..

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Luckily a mate, Will, from Oldschool has pulled it out for me...

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Will has sort of become quite smitten with the idea of an Imp race car so and while he was there he has grabbed another plus will get as many parts as he can...

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Another one for bits...

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I'm now planning to swap the whole front ends over instead of trying to fix the bent front end on this. Big job but it will be a better result.

I can also swap over the interior too. I'll fit some suitable bucket seats. Not sure on rear seats or not yet.

Probably re-do all the wiring because well... I enjoy wiring and Imps don't have fuses as standard.. which just seems dodgy.

Here's the engine. Its an A12 from a Datsun 1200...

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Pretty standard I'm told so I figure around 65-70bhp? It did have twin Weber carbs which he kept. I really wasn't into the idea of them and will either fit a standard Hitachi carb or a Weber 32/36. Luckily it comes with a manifold made for the Weber I'm told. I was originally worried about the extra weight in the back compared to the standard Imp. However I have just learned that the A series engines have alloy heads and that these little engines are pretty light. Combined with the radiator now being in the front with the battery I reckon the balance wont be too bad. I'll find out. Anyway- what can I compare it to?...my old Viva wagon?....

I'll tidy the exhaust and make a sexy new can. I am a complete novice with these Datsun engines but luckily there's lots of information out there plus I know a man named Bart!....

I'm think I'll probably make a bespoke dash arrangement with a rev counter to suit. I also have a very nice old Momo wooden steering wheel which I might fit...

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So for now that is all. I have much work on right now. There is a truck cab swap going on and then the Datsun 120y is coming inside for rust work. As soon as that is completed the new 120Y owner, Greg, will come up with the Blue imp and take away the Datsun.
I can then start working on the Imp proper.
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by Dave ' Linwood ' Lane » Sat Feb 10, 2018 8:07 am

WOW , All looks rather good i must say - il be watching for updates :)
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Sat Feb 10, 2018 9:03 am

Cheers. Yeah I'll keep the updates coming in as I progress. Things will be a bit slow for a while as I finish off some little jobs on my Viva HB wagon. Then I have to do a load of rot removal on the Datsun 120y...... phew.

In the meantime I shall be keeping tabs on the projects here, absorbing details and learning stuff. I'll be sure to have many questions to ask.

Actually..I shall start now!

Springs. Getting Monte Carlo springs here in NZ will be tricky and or expensive. So how effective is it to do a 'Makita' lowering job? (Possibly a Kiwi term right there?..) ie chop a coil out and so by lowering the height whilst stiffening the rate. I'd heat and bend the chopped end flat as per the originals. I guess I can play around and see. The most important thing being that they remain captive when the car is jacked off the ground (or flies off a big road jump...)

Is chopping springs a done thing on Imps, as on many other cars?

Also- do MK1 imps have longer springs and dampers on the front- or is it only the suspension pickup points etc that are different?

Btw- My wife Hannah is English and I had spent 10 years living in Oxford where we met. Its also where Hannah had her Imp. So Hello to James the Oxford area Imp club rep ?, organising Santa parades which we took part in :-)

Alex

Also- do MK1 imps have longer springs and dampers on the front- or is it only the suspension pickup points etc that are different?
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Wed Feb 14, 2018 8:26 pm

Datsun A12 has all the powers....

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Maybe I could cane it in reverse and twist it back out?...

Anyway... I managed to crack on and do some starter jobs. Most importantly first.. make it easier to push. I think I have spotted the reason why it it drags..

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I think those tyres might be a bit too big :doubt:

So on with the Minilites. Now it must be noted that I am not really a fan of Minilite alloys. They are just a bit too.. well...common. But now they are on the car it looks OK. If I squint a bit, turn off the lights and face the otherway I can almost pictures a set of Cheviot Turbos beautifully gracing the car.

But they aint. So I'll look for some other alloys but in the meant time these stay. I reckon I can paint the centres and leave the rims polished for more of a Revolite alloy look. Sort of hide the minilite spokes.

"HEY HANG ON!" I hear you ask... "Weren't you going to keep those awesome widened steels on, change the tyres over and fit the shiny hubcaps?"

Yes. Yes I was. But then I found this...

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The front hubs had been machined down to take the smaller centre bore of the Viva steels. bother. There is still enough meat left further in supporting the outer bearings and for race car that doesnt see a rough road its probably OK , but for a road car I just feel a bit iffy about it. I don't want my hub cracking when I hit a pot hole, the wheel going wobbly, locking up in the arch and me spinning around a locked wheel into an on coming car.

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So alloys it is. I'll swap across the untouched hubs from the spares car once I get it.

I also removed the exhaust and the mudflaps. Looking cleaner and more the style I want.

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I took some photos in the evening light. I like it. So dinky.

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Next step- engine removal. The Transaxle makes funny sounds not really befitting of a transaxle. I suspect that it has more damage then we first thought from its last outing. I have been prepared for this and anyway- quite looking forward to taking it apart if needed and learning stuff.

I also have plan. A really big plan. Its in the future and it'll be pretty damn cool. I'm not going to say a thing more. You'll like it. It involves several of my building passions Just watch and see. I'm excited!
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by 617sqn » Thu Feb 15, 2018 1:36 pm

What you need is a pair of these to finish it off :
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by ImpManiac » Thu Feb 15, 2018 9:24 pm

Cool stuff, yeoddynz! I too am looking forward to following your progress. :mrgreen:

IM 8)
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Thu Feb 15, 2018 10:35 pm

Cheers Paul. Its going to be fun. I like little cars. Less space taken up in the workshop :-)

617sqn...

Yes- some badges like that would be cool ! But I'll be getting ahead of myself looking at badges.

Instead- here's a photo of one of the Nolathane 'doughnuts'. The previous owner has been racing with these for a few years, for quite a while with a supercharger bolted to the A12. Never had a problem. Simple.

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When I take the engine out I'll get more photos of them. I'll pop this up in the Doughnut thread too. Probably more useful there :-)

Also. We found some old IMP club stickers from when Hannah was a member back in the UK. I think I might have to re-join. Then at least I can get access to all the info in the members only area......
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by ImpManiac » Fri Feb 16, 2018 11:36 am

I have wondered about synthetic rubber (such as polyurethane) for driveshaft couplings for Imps (and other cars). Did your mate make their own couplings or can they be purchased somewhere? :?:

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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power!

Post by yoeddynz » Fri Feb 16, 2018 6:37 pm

He machined them up himself. I'll measure them up once off and add photos. Pretty simple. I know nolathane is expensive in that diameter but you'd only be using maybe 100mm off a bar. It's a prick to machine.. Very sharp tools needed. However these would really only need to be cut off a bar.
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Mon Feb 19, 2018 8:43 pm

I went to the Nelson Vintage car club swap meet on Saturday morning. I was chatting to a mate and taling about the Imp project. Some fella behind me said "Do ya need any bits? I've got heaps of parts!" I turned and it was a fella I had met a few years ago when Hannah and I were looking at Bush block for sale over the road from his place. We had turned up in the Viva and parked it outside. This guy came out to look over the car, we started chatting and he mentioned his Hillman Imps. He then showed us about his workshop.

Now I had been intending on going back to his place (handy too because we are mates with the lady who ended up buying the land...bl***y hippies :-) ) so it was good to bump into him again. I told him about how the Imp race car, which he knows well, was still quite rough from having been pulled straight after the accident. He mentioned the spare shell he had sitting there and said we should pop up for a look.

We went up there yesterday and....well.. I have now got three Imps.

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This shell has some rust, the worst being the drivers floor but very easy to fix.

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Main thing is that its straight. I would say the worst aspect is the dent behind the drivers door. It will pop out but I don't really like having to use lots of filler, especially on large panels. Oh well. I can only try my best.

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The front slam panel has a dent but there is a good panel on the other , completely chopped up shell in there.

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The windows need a clean..

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1971? Mk2?

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The car is a nice light blue, not too different to the blue I was thinking of painting the car.

All for the princely sum of 25 Quid ! :-) How could I refuse!

So my plans are changing (everyday) and I will now use this shell as a base. The Blue car in Chch will be used for parts but I will keep its shell as a future car project (old cars lining up the upper driveway amuses Hannah no end I can tell you... but at least Imps are little cars) thus making the caged race car shell spare (I already know someone who might just want it...)

In other news I went hunting with my large spanner and caught a Datsun engine sneaking around the back of my Imp...

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Then I had a BBQ, drank beer and stripped it down. Hows that for hardcore Saturday night antics eh?!

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Here's the little transaxle..

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Fits on to a quite nicely constructed 'bellhousing' adaptor. The flywheel and clutch remain Datsun. Uses a modified release for with a typical release bearing rather than the carbon Imp type. I'd love to know more about who built this adaptor because a few Imps were converted to Datsun engines here in NZ?

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Clutch has a sprung centre which is needed because I reckon the custom Nolathane driveshaft couplings don't have the required amount of give to take up shock loads like the original rotoflex couplings do..

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That is all for now. I must finish the truck cab swap so I can create some space for more Imps........
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by Dave ' Linwood ' Lane » Mon Feb 19, 2018 8:54 pm

you wouldnt get a shell here for 25 notes i can tell you - top find
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Mon Feb 19, 2018 9:17 pm

The fella is going to sell me a spare transaxle for 12 pounds too. Beer money. But it does seem to me that, much like the Viva circles I frequent often, Hillman imp owners are not out to make money. Its more about helping each other out :-)

This latest shell is a '71 I think..according to that tag. Apart from the suspension pivot points being lower are there any other differences I should know about because I intend to swap the interior out from a '65 into it.

I'm certainly very happy that I will now be able to do up one imp with he Datsun engine installed, have fun, sell it on and make some coin back and then have one Imp left as a long term project. I actually fancy making the Blue Christchurch imp into a nicely restored road car with an Imp engine and few useful mods (as is the way)

I have always been warned by owners that Imps are addictive. Yep. I see this happening. :D
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by Dave ' Linwood ' Lane » Tue Feb 20, 2018 6:47 am

Shell maybe dated 71 but its an earlier shell than that - swapover should be fine
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by ImpManiac » Tue Feb 20, 2018 12:36 pm

Wow! :shock: Your Imp collection is burgeoning! Nice work!
yoeddynz wrote:I have always been warned by owners that Imps are addictive. Yep. I see this happening. :D
^^ This is true. I would like a Coupe to go with my '66 Chamois saloon. They 'get in your blood,' these Imps! :lol:

That Datsun engine looks right at home on the Imp transaxle, doesn't it. :idea:

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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Wed Feb 21, 2018 1:58 am

I'll weigh the Datsun engine when I get a chance. We can see how heavy it is compared to the Imp item.
But for now I have a lot of mud to clean up before I can play with Imps. We have been hit by a cyclone here in NZ and our district has come off pretty bad! Especially our valley. We had 260mm in less than 12 hours here!!!

So this happened yesterday... the Bridge, that is now wrecked, is just 500m up from our driveway entrance. We have had some huge slips on our 11 acre bushblock. Its not pretty. But compared to many we have come off OK.

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Our neighbours over the road have suffered big time..

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:(
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by ImpManiac » Fri Feb 23, 2018 12:42 pm

That is awful news. :( Sorry to hear it.

IM 8)
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Fri Feb 23, 2018 7:42 pm

Its OK. We now have new rallycross race tracks right out our drive :-)
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by ImpManiac » Sat Feb 24, 2018 4:24 pm

^^ That's the spirit! Glass half full, as opposed to half empty. :wink: :D

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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Sun Feb 25, 2018 8:40 am

Good news. That Imp shell I am planning on picking up is safe. We drove up a very rough road in our trusty old 4wd Hiace to check out a friends property over the road which has been demolished totally, everything just washed away leaving a 6m wide creek bed where it used to be 1m! :-(

Some other flood waters rushed through on the other side of the road, only 5 metres away from the Imp and took out the inside of the campground kitchen. If you look in this following photo you'll see a line of brown mud heading down the field in the background, Imp sitting high and dry :-)...

Image

But our road out of the valley is still too nasty to take a trailer on so the Imp shall have to wait a bit longer.
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Sat Mar 03, 2018 7:49 am

Ha... the power of water. While on the topic of slips...a local friend just posted up a short clip of himself getting taken out by a slip not far from us during the same cyclone. Their place got totally hammered big time. Massive slips and the fields full of full sized pine trees. I promise to get back on Imp subject very soon...

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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Sun Mar 11, 2018 8:01 pm

On Thursday last week it dawned hot and sunny. This was good. The thought of trying to load an old car shell onto a trailer using a tractor and some pallets in the rain would be yuck. Instead.. we got blasted by sun. We got the shell onto the borrowed trailer, loaded the van up with more parts from another Imp (there's more to collect!) and made our way back home slowly along a now revised (thanks Cyclone Gita) very windy route.

Once home this was our view as we sipped our lunchtime coffee...

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I moved it up to the workshop entrance. My Viva wagon daily was banished downstairs..

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Cleaned out a load of old interior carpet and insulation..

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Sat inside it and made (little) engine noises..

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It came with some patina attached..

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Then the clean began..

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It cleaned up nicely...

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Then we moved it inside. Lifting it off the trailer was a lot easier than putting it on..

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I am now building a decent sized rolling table to lower it onto. More on that soon. Glad to have the shell here so I can crack on and cut out the rot. First job though is to clean all the mess out inside. Quite a fun job that. I might find some coins and so it can end up even cheaper :-)
Last edited by yoeddynz on Fri May 04, 2018 7:46 pm, edited 1 time in total.
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by ImpManiac » Fri Mar 16, 2018 11:29 am

Wow! :D That'll be a lovely project for you! I am not likely to be the only one experiencing a touch of garage envy. :wink: Keep up the great work!

IM 8)
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Fri Mar 16, 2018 8:12 pm

Cheers. Yeah we love our workshop. Always wanted a decent workshop after having done restorations on a cold stony floor in Oxfordshire, which would flood in winter. This workshop is the only 'proper' approved building on our land as we live in the truck. Keeps costs down so could afford workshop :-)

Here's an update as things have been happening on the Imp front.

I lowered the car off the hoist onto our old rolling steel table. I then removed the doors. Oh man was I expecting this to be a no go. Most of the screws were missing on one side suggesting someone had tried but gave up. Lots of wd40 and and an impact driver and I manged to get the rest to move. Then worked carefully away at them. I had to cut the retaining strap pins as they wouldn't pop out.

Tools of the door removal trade...

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The doors are in excellent condition. No rot at all. Not even a bubble. Just some surface rust on the underside of one. Much relief!..

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Last weekend I built a new rolling table. I can raise it up 200mm or higher if I swap the legs blue coloured legs out for longer ones. It'll carry 600kg so more than enough for an Imp shell :-) The shelf on the bottom is for all the panel bits and bobs and what not as they come off. The main 17mm sheet on the top can be flipped over for a clean side so we can use the table for woodworking projects :-)

Cost was very little, using old steel offcuts and castor wheels on sale at Bunnings.

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So with that built I started cleaning out the inside properly. The floors came up pretty good with the rot mainly around the front. Nice photo from the back where you can easily spot the holes...

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I'll fashion some repair panels to fix this. Toying with the idea of letting in an extra channel to allow the water pipes to run under the car- maybe widen the center tunnel slightly. Not sure yet. It's just pipe dreams at this point........ *

With the shell up on the hoist I gave the underside of the car a look over and scrub. The underseal comes away nicely and reveals a really solid bottom..often with the original paint. Inner sills are great! This is nice. The majority is surface rust with localised patches of rot. The outer sills need to come off but I am hoping I might be lucky and get away with just patches as the tops and bottoms seem good. I shall see soon.
I must add that I am really impressed with the way the car is built. Its a solid wee thing. And the steel seems to be really decent quality. I am guessing that earlier Imps, much like early Vivas, possibly used better steel than later cars?

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The suspension units and rear subframe came off fine. I was really worried about seized bolts but they all freed up nicely! The Arms are just covered in surface rust and should clean up well then get smoothered in Por15.

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Yesterday we went back to where this shell came from and picked up more stuff in a bid to keep the race car shell rolling. I now have an even better set of rear arms plus a working transaxle.

Back to this car. The windscreen pretty much fell out as the seals had gone all gooey in the sun. Due to this I expected to find rot but its solid as!..

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Then I had this lot to deal with...

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wow -what a nice design!? Rust trap with leaky rear windows. Now most of this will be cut out as re-built due to the opening that will exist there for the Datsun engine rocker cover to pop its head through. But I wanted to expose enough decent steel on the section to be removed that I might be able to use as repair bits for the other areas here.

Nasty job. So many spot welds and I couldn't see them for the rust. So I cut out the strips and then chisel away at the remains. So much rust dust and flying metal chips.

Yeah- I'm the Friday night party animal, sitting in my Imp chiseling rust...

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Next job is to start the sills. Lets see how bad they really are. I may well put a mattress on the ground and roll the shell over on its side to make the job nicer. The shell is so light now!


*see what I did there...

Imp001
Last edited by yoeddynz on Fri May 04, 2018 7:48 pm, edited 2 times in total.
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by ImpManiac » Fri Mar 16, 2018 11:04 pm

I like the steel table that you built. That's a really good way to keep the bare shell mobile. :)

IM 8)
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Sat Mar 17, 2018 8:20 am

Yeah it seems to work well. I have actually put the shell on the taller table for now while I attack the sills.

Opened the sills up this afternoon. The O/S sill inners are in great condition. Could have almost gotten away with not cutting it open. But glad I did as I can clean it out and paint it before welding in a new outer.

The N/S though.... ooooooooohhhhhh. That heater hose box is rotten. I have cut it out and will fold up a new one. Which leads me to a question you fellas can answer...

I had to pull out the hoses. wow... that kink at the back you have to pull through between the storage bin and the outer area. Tricky. I am imagining refitting the hoses is a mare of a job- especially if the car has all the interior and windows in. I will probably refit them once I have finished the welding. Then they are there for the future. But considering this car will have the front mount radiator as it does in the race car I was figuring another heater hose option would be to tee off some hoses from the radiator hoses as they run through to the front boot and connect up the heater matrix that way. Fit a tap to one of the heater hoses. Thus not worry about using the stock heater hoses.

I realise that by routing the heater matrix this way the heater wont work straight away because I'd have to wait till the engine is up to temp. Not very good for misty mornings. But are there any other problems I've missed? Btw- the Datsun engine was plumbed in much the same way as an Imp engine would be with a front mount- only thing was that the race car doesnt have a heater fitted.

Oh... and I HAVE looked up all the previous cooling and front radiator threads. Lots of them to read :-) But many conflict and it seems that there are several ways of going about a front mount radiator. Plus sadly many of the links to photos and old threads take me to the dreaded 404 page :-(
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by ImpManiac » Sat Mar 17, 2018 6:50 pm

Great news on your sills. Less good on the heater channels but that is not unusual. :wink:

Take a look at my Readers' Cars thread here. :) You can see how the front rad used to be and how I created a welded-in structure to replace the strength lost when you cut the heater plenum out. I think I did ok but there may be room for improvement.

I plumbed my heater using Tee pieces from the main 28 mm copper pipes, as you were proposing. :D It worked well and the heater got toasty in short order. My car ran the Imp engine (actually a Talbot 930 cc lump) with the standard Imp pump but no rear radiator and cooling fan. The car would warm up from cold to running temperature in about a mile.

I was running an 82-degree thermostat, I think.

IM 8)
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Re: Yoeddynzs 1965 Hillman Imp project with Datsun A12 power

Post by yoeddynz » Sun Mar 18, 2018 6:42 pm

Oh awesome. That's good news then. I'll have a read of that now.

Cheers

alex
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Re: Yoeddynzs 1965 Datsun powered Hillman Imp - welding begi

Post by yoeddynz » Wed Mar 21, 2018 9:07 pm

Started on the rot removal over the weekend. Its going well. Trying to sneak in time here and there between jobs but did some good hours on Sunday. As usual I am finding it super addictive and very satisfying. I had no idea what I was expecting to find under the outer sill skins so straight into it..

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and luckily the drivers side is in really good condition. Just surface rust.

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Glad to have peeled off the skin though. Gave me a chance to clean it out and paint it. Then a new outer sill - which I have to make in two sections because my folder is only 600mm :-)

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Also had to make new 'rear sill' or is it lower B pillar ? was clean as under there luckily so again just a new outer needed.

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The passenger side though.. Oh dear. bother. The rot had taken out the bottom half of the heater pipe boxing. The inner sill/floor edge had one small section with rot I had to cut out as well. Nothing for it but to chop it all out and let in some new steel.

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Before I went any further I had to remove the heater hoses. I can see these being a right mare to re-install. I'm sure there are some secrets some of you Imp old timers know about :D

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Then new boxing..

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New vertical sill piece. Lots of holes for plug welding..

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Welding in place. I must say I was happy that the shell was empty and resting on the table neatly along its length. There was enough decent upper sill including decent vertical sections to hold the shape of the doorway :-)

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With that lot fixed I painted it all in a heavy zinc rich paint and then welded on the new outer. I butt welded the whole lot because I didnt want any little seams that might collect moisture. I'll fill the lot with cavity wax later on (always a fun job..)

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I then carefully shaped up a new 'LowerB pillar, guard bottom sill end' (what is this bit called...just the sill I guess..) and was about to weld it in place after having treated and painted the inner section.

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But I was not feeling happy about the look of that inner bit. I just had to delve deeper and I'm glad I did. I knew the floor corner was rotten but I was going to deal with that later. However it made more sense to do the lot in one go. I cut the curved inner sill off and then there was this..

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Hmmmm... what's under here ?....

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Rebuilt it all..

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New inner cover...

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Then on with that outer..finally. Both sills complete, rot free and strong again :-) They are sort of the most critical of repairs to get right on this car. The rest is just about rot removal and letting in steel with having to use heaps of filler (I dont really enjoy sanding filler so I'd rather get the repair as close as possible and just allow for a skim if any )

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I was going to do the floor next but this lot was right there, laughing at me. I had to cut it out and see what gives..

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Shaped a new piece to suit. Luckily not as tricky as I was expecting. Given the awkward shape around the corner I'll break these corner repairs down into sections. The wheel arch rot visible will be dealt with afterwards.

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Drilled a new drain hole for future cavity wax applications and then painted the inner with Por 15..

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Ready in place to weld.

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And that is where I was last night. Its welded in now and I'll continue on around the corner, then do the other side. The battery box is rotten but the battery will be moved up front anyway in order to redistribute the extra 20kg of the Datsun engine.

Work will slow down on the Imp for now as I have sold on our family Datsun 120Y 2 door wagon on to a friend from Oldschool. I'll be doing a fair bit of rot removal on that before it gets taken away. That earns me money where as this Imp doesn't. So Datsun wins the time allocation. But I'm sure I'll sneak time in here and there. Plus Hannah can do work on either car to help with progress (when she's not at the beach swimming with her sister who's visiting - pfff....priorities..)

I have also eventually come to realise that it might well be a slightly tall order to try and get this Imp on the road for the nationals in 2 weeks time....... :roll: So Viva HB wagoning we shall be for that fine event.

But hey- I'll continue as is and at least I should have done the vast amount of rot work by then :-)
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Re: Yoeddynzs 1965 Datsun powered Hillman Imp - welding begi

Post by Dave ' Linwood ' Lane » Wed Mar 21, 2018 10:56 pm

Top work done really well and quickly :D
Formally known as " Noddy "
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Re: Yoeddynzs 1965 Datsun powered Hillman Imp - welding begins.

Post by yoeddynz » Thu Mar 22, 2018 1:09 am

Thanks Dave. Being the forum slut I am I've had you congratulate me twice :-)

It's fun this imp repair thing. Curses that I have to stop and do paid work (still.. At least its paid work playing with other old cars..)
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Re: Yoeddynzs 1965 Datsun powered Hillman Imp - welding begi

Post by bks974c » Thu Mar 22, 2018 9:22 am

Lovely bit of fabrication. Doing a great job. :D

Its rotten in all the usual places but less so than a lot of UK cars.

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Re: Yoeddynzs 1965 Datsun powered Hillman Imp - welding begi

Post by colimp66 » Thu Mar 22, 2018 9:40 am

Have to agree with Scott , looking good and good metalwork skills going on there. :wink:
Will be up an running in no time .. :D

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Re: Yoeddynzs 1965 Datsun powered Hillman Imp - welding begi

Post by tiker » Thu Mar 22, 2018 10:15 am

Excellent fabrication looking forward to see the progress
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Re: Yoeddynzs 1965 Datsun powered Hillman Imp - welding begi

Post by 617sqn » Thu Mar 22, 2018 1:31 pm

Nice work there, and quick too as Dave pointed out. Each to their own, but I'd love to see this car Imp powered 8)

Keep the build info coming !

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