Posted by Deerestriker on September 25, 2021 at 18:18:41 from (71.80.44.38):
Hey all, I noticed there was some information from Prior posts regarding engine knocking noise on John Deere 70 gas engine .....some great Insight on John Deere 70 gas engine clunking noise. I've got one too, I've checked just about everything mentioned. I have a question, does anyone know how much camshaft to crankshaft gear clearance is acceptable? When rocking the crankshaft back and forth, I can see movement and here clunking from the two gears clearance. Also, I haven't pulled flywheel, real unusual situation, it looks like someone removed the ring gear, cut a slice from the outer part of flywheel inward, roughly 4 inches, maybe a means to tighten up flywheel to crankshaft splines? Then reinstalled ring gear. The flywheel does not appear and sound like it's loose on the splines at least while I'm rocking it by hand... not sure if it is those two gears being a bit worn. Any thoughts? Or clearance measurement?
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