POWERHEAD
Page 4A-40 90-855347R1 JANUARY 1999
10. Install oil seal into upper end cap as follows:
a. Apply a thin bead of Loctite 271 to outer diameter of upper end cap oil seal.
b. Use a suitable mandrel, press oil seal into upper end cap (lip facing down) until
bottomed out on lip of end cap. Remove any excess Loctite.
c. Lubricate oil seal lip with Quicksilver 2-4-C w/Teflon (92-825407A12).
d. Lubricate O-ring seal surface on end cap with Quicksilver 2-4-C w/Teflon
(92-825407A12). Install O-ring on end cap.
a
51849
c
a
a
b
7
Loctite 271 (92-809820)
95
2-4-C With Teflon (92-825407A12)
95
7
95
a-Oil Seal
b-Lip of End Cap
c-O-ring
Crankshaft Installation
SPECIAL INFORMATION
Installing A New Crankshaft Assembly Into Cylinder Block
Check the crankshaft sealing ring mating surfaces in the cylinder block and crankcase
cover for wear grooves that were caused by the crankshaft sealing rings from the previous
crankshaft. If wear grooves are present, the sealing rings on the new crankshaft will have
to fit into the grooves without binding the crankshaft.
Before installing crankshaft, remove any burrs that may exist on groove edges.
Lubricate sealing rings with light oil and install new crankshaft as instructed.
Install upper and lower end caps and then inspect fit between sealing rings and grooves.
Temporarily install crankcase cover and rotate crankshaft several times to check if sealing
rings are binding against crankshaft. (You will feel a drag on the crankshaft.) If sealing
rings are binding, recheck grooves for burrs. If this does not correct the problem, it is rec-
ommended that the cylinder block be replaced.
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