bobthebuilder
Bigger Hammer
yikes .....end play should be minimal ! a few thousanth's ....like maybe 3-5 ? If you are starting the engine with your foot on the clutch - you should stop doing that. It puts pressure on the Thrust bearing with no pressurized oil around it. That seems like an issue that needs to be addressed soon. How much movement ? And good luck !On most engines that I've worked on, crankshaft endplay is only a few thousands of an inch. If you can literally see the flywheel and crank moving fore and aft, that might be your problem. Just guessing but perhaps the thrust flange on one of your main bearings is worn. Hopefully Carter, one of the members that has rebuilt your engine family will chime in.