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Triumph Spitfire - Distributor replace

I recently purchased a 72 Spit IV. The previuos owner replaced the distributor with a Lucas single point with a vacuum advance. From what I can find out, it appears this car came with a Delco Remy D204 with a vacuum retard setup.

Thw single Stromberg only has one vacuum port and is on the intake manifold side of the throttle plate, so when I hook up the vacuum I of course get full advance even at idle.

I do have the original distibutor but I think the vacuum diaphram is bad, and I am not sure about the bushings, which is why I think he replaced it.


Suggestions as to how to make this work or should I repair the original, or start over with a different distibutor.

Thanks.
Glen
Glen Hartliep

Glen,

I don't think you can make the replacement distributer work. If the original was a retard it was meant to advance the timing under low vacuum conditions (probably when running at constant velocity). I doubt you will ever get the performance and gas mileage with your current set up.

You probably want to go back to the old one or get a new one. You may want to scrutinize the old one to see if the bushings really are worn. You might be able to use it. Otherwise I would go new.

Not knowing the original owners intent, makes it difficult to determine why the change.

I have a 68 Spit with dual SU carbs.

Good luck with it.

Mike Petryschuk
Georgetown Ontario
Michael S. Petryschuk

Hi,

The best replacement and easy to find is a non-vacuum Mini distributor. It will solve your problem for good.

Cheers,

JGC
J. G. Catford

This thread was discussed between 18/08/2006 and 20/08/2006

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