The new pump I have does not have any recess cut into the top. TomL was measuring some sort of recess on a pump he had during one of our conversations, but he didn't say what brand or how old it was.
Has anybody else had a distributor drive gear wear/failure problem? What gear is used on the "mini" HEI? The shaft diameter is different from a stock dist shaft vs a HEI shaft, so its not just a 235 gear on a HEI distributor. I have a stock 2.8 dist out of a V6. Its gear is totally different from the other two distributors.
Also, I was looking at the leading and trailing edges of the dist drive gear teeth on my old Clifford Cam. They are asymmetrical. Is it possible for one or just a few new cams to have a distributor drive gear manufacturing problem? Or would a huge batch of cams be defective? I can only guess if my cam is OK or if it has a problem.
I never thought I could discover a whole universe in a distributor shaft.
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