Shims (14) are only used to establish correct crankshaft end play when crankshaft and thrust washer are worn.


Clean all parts in gasoline or cleaning solvent and blow dry with compressed air.

Inspect and replace starter clutch gear and starter clutch (6 and 18), if necessary. Especially check for badly worn or damaged clutch teeth that may cause partial or no engagement of clutch (18) and gear (6). To replace starter clutch (18), see "Replacing Clutch Sprocket Needle Bearing and Starter Clutch," Section 4B. Examine gear (6) bushing face for burred or damaged condition affecting free movement of gear on spacer (7). Recheck for binding by assembling gear on spacer and note action of two parts.

Examine starter clutch spring (8) for collapsed condition or breakage, and compare with new spring, if possible. New spring free length is approximately 1 in.

Inspect starter crankshaft (11) for bent condition or badly worn bearing surfaces and particularly for wear on thrust washer (15) and shaft collar faces. Temporarily position shaft (11), seal (13) and washer (15), gear (12), washer (10) and nut (9) in left case and check crankshaft end play with dial indicator. If end play is not within specified limits of .001 to .007 in. it is absolutely necessary to shim crankshaft. Use .007 in. thickness shim, Part No. 6802, between crank-case and thrust washer to obtain correct fit.

Examine starter crank gear assembly (12) for wear and damage. Pay particular attention to cam plate (20) ears for wear or bent condition. Check for loose cam plate rivets (19) that may result in cam plate separating from crank gear. Cam plate may be replaced providing gear (12) is in good condition. When riveting new cam plate to crank gear, insert rivets from gear side.

Check lock washer (10) and oil seal (13), if worn or damaged, replace parts.

Bronze bushings (16) are a press fit in transmission sprocket cover (5) and left crankcase. Bushings are long life parts and will seldom require replacement, however, if shaft (11) is not badly worn and excessive starter crankshaft radial play is noted, bushings should be replaced. When installing sprocket cover bushing be sure to correctly align hole in bushing with cover grease fitting channel.

Starter gear stop pin (21) and washer (22) ordinarily will not require replacement, and it is recommended procedure to inspect and replace stop pin only with engine removed from chassis. Stop pin is a press


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