Distributor Advance Springs

[Ian Williams]

The wear in baseplate holes is usually on the advance side so should make no difference to snapback, it will however alter the amount a distributer advance so you may need to look at that. I think that your snapback issue Graham is more likely to be due to the wear in the pins on the advance weights, and in the toggles that attach the springs to them. I would also suggest that if you need prise a screwdriver in to move the weights the springs are either too heavy or you have other undiagnosed issues. You may have noticed an improvement in performance because you are effectively now running a fixed distributor and no longer suffering timing scatter. You may notice a further improvement if you resolve all the problems you probably have in your distributer and get it working like a NOS unit would.

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Have you checked to see that the distributer is actually advancing in use Graham?