Checking Cam Gear.

5.2.2.9.2

Checking Cam Gear.

Inspect gear teeth for wear and nicks. Cam shaft and cam gear journals

and lobe rejection sizes are shown in Table No. 11. Figure 27

Check automatic spark advance on models equipped with "Magna-Matic".

Place cam gear in normal operating position with the movable weight

down. Press the weight down. Release. The spring should lift the

weight. If not, the spring is stretched or the weight is binding.

TABLE 11

5.2.2.9.3 Ball Bearings

5.2.2.9.3.1 To Remove,

The ball bearing is a press fit on the crankshaft. If either bearing or crank-

shaft is to be removed, use an arbor press.

5 . 2 . 2 . 9 . 3 . 2 To Install.

Heat bearing in hot oil (325 max.). Bearing must not rest on the bottom

of the pan in which it is heated. Place crankshaft in vise with bearing side

up. When bearing is quite hot, it will become a slip fit on the bearing jour-

nal. Grasp bearing with the shield down and thrust it down on the crank-

shaft. The bearing will tighten on the shaft while cooling. DO NOT QUENCH.

5.2.2.9.3.3 Aluminum Alloy Engines - Ball Bearing.

On crankshafts with ball bearings, the gear teeth are not visible for alignment

of the timing marks, therefore, the timing mark is on the counterweight. On

ball bearing equipped models, the tappets are installed first. The crankshaft

and cam gear must be inserted together, align timing marks and insert crank-

shaft and cam gear.

5.2.2.9.3.4

Crankcase Cover and Crankshaft End Play.

The crankshaft end play on all models, plain and ball bearing, should be .002"

to .008". The method of obtaining the correct end play varies, however, be-

tween cast iron, aluminum, plain and ball bearing models. New gasket sets