Aluminum Engines - Ball Bearing.

include three crankcase cover or bearing support gaskets - .005", .009",

and .015" thick,

5.2.2.9.3.5

The metal shim is added to the magneto end of the crankshaft instead of

the power take-off end. To protect the oil seal while assembling the crank-

case cover, put oil or grease on the sealing edge of the oil seal. Wrap a

piece of thin cardboard around the crankshaft so the seal will slide easily

over the shoulder of crankshaft. If the sharp edge of the oil seal is cut or

bent under, the seal may leak.

Checking End Play.

5.2.2.9.3.6

On models with a removable base, the end play can be checked with a feeler

gauge between the crankshaft thrust face and the bearing support on plain

bearing engines. On other models, the end play may be checked by assem-

bling a dial indicator on the crankshaft with the pointer against the crank-

case. Move the crankshaft in and out. The indicator will show the end

play. The other method is to assemble a pulley to the crankshaft and mea-

sure the end play with a feeler gauge.