Illus

TIMING GEARS WITH MARKS IN CORRECT ALIGNMENT (O.H.V. ENGINE)

1. Pinion gear. Gear and shaft are spline engaged and gear is a slip fit on shaft.

2. Cam gear. (Steel spacing washer behind this gear).

3. Breather gear.

4. Circuit breaker drive gear. (Spacing collar in front of this gear).

5. Intermediate gear (not marked). (Spacing collar in front of this gear).

6. Generator drive gear (not marked).

7. Oil pump drive gear (not marked); secured on end of pump drive shaft with key and spring ring.

Installing Timing Gear Case Cover (O.H.V. Engine)

Before installing cover, lay engine on its side and pour about V* pint of engine oil over timing gears.

Unless gear case cover gasket is in good condition, install a new "factory-made" gasket. Never use a "home-made" gasket as this gasket has holes especially located for oil passages and if a hole is left out or put in wrong place oiling system will not function normally. Install cover and all gear case cover screws. Tighten screws securely, and turn engine and note whether or not it turns freely. If new cam gear shaft bushings were installed and considerable drag is felt, it is very likely that the cam gear thrust washer may be too thick and must be ground thinner, to give cam gear from "free running" to

.005" endplay. Check endplay of cam gear with a thickness gauge, through tappet guide hole.

After correct endplay has been established, install tappets and tappet guides. See "Valve Tappets and Valve Tappet Guides," Page !

Installing Timing Gears (Side ValveEngineL

Install timing gears in case with marks in align* ment, including mark on pinion gear as shown in Illus. 65. These gears are ordinarily assembled with one steel shim washer behind each of the four cam gears and one shim washer in front of the two front cylinder cam gears. Occasionally an engine may be found that was originally assembled with more shim washers or without shim washers at one or more points. In this case, reassemble with the same number of washers found when disassembling.

Installing Timing Gear Case Cover (Side Valve Engine)

Before installing cover, lay engine on its side and pour about lA pint of engine oil over timing gears.

Unless gear case cover gasket is in good condition, install a new "factory-made" gasket. Never use a "home-made" gasket as this gasket has holes especially located for oil passages and if a hole is left out or put in wrong place, oiling system will not function normally.

Install cover and all gear case cover screws, except hexagon-head bolt which also holds oil feed pump. Tighten screws securely (this includes generator screws), and turn engine and note whether

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