CRANKSHAFTS & CAM GEARSEnd PlayFig. 20. Checking Crankshaft End PlayIf the end play is more than .008" (.20 mm) with one.015" (.38 mm) gasket in place, a .009" (.23 mm) or .005"(.13 mm) gasket may be used. Fig. 20.If the end play is more than .008" (.20 mm) with one.005" (.13 mm) gasket in place, a thrust washer isavailable and is placed on the crankshaft power take-offend. Fig. 20.222949 Thrust Washer for 1.181" (30 mm) diametercrankshaft.222951 Thrust Washer for 1.378" (35 mm) diametercrankshaft.NOTE: Thrust washer cannot be used on ball bearingengines.Checking End PlayOn models with a removable base, the end play can bechecked with a feeler gauge between the crankshaftthrust face and the bearing support on plain bearingengines. Fig. 20.Fig. 21. Correcting Crankshaft End PlaySERVICE PROCEDURE FORENGINE MODEL SERIES 300400 and320400Install breaker plunger and tappets, then insert cam gearfrom power take-off side of cylinder. See Fig. 22.Fig. 22. Inserting Cam GearSlide cam gear shaft through power take-off bearing andinto cam gear. See Fig. 23.Fig. 23. Sliding Cam Gear ShaftInsert magneto side cam gear bearing on cylinder.Torque cam gear bearing screws to 85 inch pounds (1.0mkp, 9.6 N•m). Install long cam gear shaft bolt (5-1/2")(14 cm) to prevent loss of shaft. See Fig. 24.Fig. 24. Inserting Cam GearCHECKING AND CORRECTINGCAM GEAR END PLAYCam gear end play tolerance is machined at the factoryand normally requires no adjustment, unless themagneto side cam gear bearing or cam gear is replaced.8
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