End Play

Generator drive gear—Free to .003 lash Idler gear—.005 to .007 end play Dist. gear—.005 to .007 end play Breather gear—.003 to .005 end play

OHV idler gear spacing collars not listed in parts book.

Gear cover gaskets compres .010 to .012. Started shimming engines 50 FL 5840 for quite running. To check end play deduct size of gasket to compressed size after measuring gears with new gasket in place. Use a straight edge.


All cam gear pitch diameter is .105". B.T. cam gear std size measurement = 2.764. Pinion gear std size measurement = 1.446. Together they equal 4.210. The best combination without whine is 4.216.

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