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wrist pin needle bearing queston

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wrist pin needle bearing queston

Discussion at Motorized Bicycle Engine Kit Forum in the 2 Stroke Bicycle Engines & Kits forum. I have a BGF Z50SL that I pulled the top end to clean out swarf from the crankcase and cylinder. ...

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10-02-2009, 03:43 PM

joek

Motorized Bicycle Member

Join Date: Sep 2009

Location: detroit

Posts: 30

wrist pin needle bearing queston

I have a BGF Z50SL that I pulled the top end to clean out swarf from the crankcase and cylinder. the wrist pin
bearings radial freeplay feels ok, but the axial play seems excessive, the piston, wrist pin and bearing will rock side to side in the rod jounal about 5 to 10 degrees. is this normal for these engines?

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