Racer eating distributors: rotors and caps?

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doc knutsen
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Re: Racer eating distributors: rotors and caps?

Post by doc knutsen » Mon Sep 29, 2014 6:16 pm

Andy Hillman wrote:What a lovely way to end the season ! I will look forward to seeing your in car footage in 2015.
If you decide to stay with the Dellorto carbs their is a mail order website called "green spark plug company" they stock dellorto parts and post all over the world
cheers Andy
Thanks for the tip, will contact them in due course.
A short in-car video may be found at Youtube, featuring Matt running Pumps, my yellow Imp. Select "Knutspeed " videos, and go for the one that says Rudskogen testing 2014.
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Lars Hagermark
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Re: Racer eating distributors: rotors and caps?

Post by Lars Hagermark » Mon Sep 29, 2014 9:37 pm

Good news! Sorry though that the right cure was found at the wrong end of the season.
Overseas contact, Sweden. -69 Cali (998), 2 -64 Imps in need of "some" work.
Life is full of solutions waiting to be found.
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Re: Racer eating distributors: rotors and caps?

Post by Imp77 » Thu Dec 31, 2015 11:10 pm

Just to add to this we have had the same problem with rotor's flying off. What I found on my engine was the very thin oil pump gasket folded up a very slight edge when pushed onto the oil pump mounting studs. This tiny fold of paper compressed under the pump and held it on a ridiculously small angle which tilted the pump ever so slightly. This was enough by the time it reached the top of the distributor drive gear to lean on the distributor shaft and make it rotate in small circles at the rotor end. Enough to through the rotor out of balance, lift off and hit the cap.
I could take the gasket in and out to prove what the problem was.
I refitted oil pump with some Loctite master gasket and no paper gasket. Problem solved.
Hope this helps others.
Cheers Gary Rush
NZ Imp racer.
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Re: Racer eating distributors: rotors and caps?

Post by ImpManiac » Fri Jan 01, 2016 12:49 am

I doubt I would have thought of that! :? Well done for diagnosing it.

IM 8)
Paul Harrison
imp: a small demon : FIEND : a mischievous child : URCHIN
maniac: Raging with disordered intellect: affected with mania: MAD
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