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Old 08-13-2019, 02:44 PM   #3
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Join Date: May 2010
Location: Central Highlands, Cen~Col.
Posts: 1,899
Default Re: model a engine jumps time

Please note that SOME repro screws are too long and the effect is same same missing a washer if used with original thin lock washer and original thin flat washer!

The screw bottoms out before the cam is tight.

The long REPRO screws come with an extra thick lock washer to correct this.

So if you use the long repro screw with original THIN lock washer and original thin flat washer the cam will slip.

Last edited by Benson; 08-13-2019 at 02:53 PM.
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