Cold start lifter noise

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#11

12-09-2022, 10:11 PM

propflux01

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Quote:

Originally Posted by Lammy1000

I was a bit confused because:

The Wood Alpha lifters instructions spec 0.120 to 0.140" push rod extension.

The Fuel Moto EZ pushrods instructions spec 4 turns for Wood lifters. These pushrods are 24tpi or 0.042"per 1 turn. So 4 turns X .042" = 0.168". Is 0.168 getting too close to the max lifter travel which is ~0.200"?

no, not too close. Keep in mind when cold, at that setting, you have .040 of travel, as the engine warms and expands, that .160 reduces down quite a bit, as the engine “grows taller”. Most engines will “grow” upwards of .100 when at operating temp. On a hot day, some even more. Hence why you see those that adjust “deep” usually don’t have lifter noise issues, and also why FM adjusts them deeper.

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#12

12-14-2022, 01:19 PM

bigal51

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Replace everything in the cam chest. OIL PUMP, cam plate, cam bearings, seals, lifters and push rods. I'm pretty sure I had less than $400 in all the parts. No noise after that.

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