CRANKSHAFTS & CAM GEARS
Removal
Section 10
CRANKSHAFTS & CAM GEARS
REMOVAL
Aluminum Cylinder Engines
To remove the crankshaft from aluminum alloy engines,
remove rust or burrs from the power take-off end of the
crankshaft. Remove crankcase cover or sump. If sump
or cover sticks, tap lightly with soft hammer on alternate
sides near dowel. Turn crankshaft to align the crank-
shaft and cam gear timing marks, lift out the cam gear,
then remove the crankshaft. On ball bearing models, the
crankshaft and cam gear must be removed together.
Fig. 1.
Fig. 1. Ball Bearing Engines
Cast Iron Cylinder Engines
Model Series 5, 6, 8, N
Plain Bearings
Remove magneto. Remove burrs and rust from P.T.O.
end of crankshaft. Remove crankshaft, Fig. 2.
Fig. 2. Remove or Install Crankshaft
Model Series 6FB, 6FBC, 6SFB, 8FB,
8FBC, 8FBP -- Ball Bearings
Remove magneto. Drive out cam gear shaft while
holding cam gear to prevent dropping, Fig. 3. Push cam
gear into recess, Fig. 4. Pull crankshaft out from
magneto side.
Fig. 3. Remove Camshaft
OCTOBER, 1981
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