240
POWERHEAD
POWERHEAD ASSEMBLY
lower housing with extended lip facing down.
Lubricate seal lip with Triple-Guard grease.
Install a new O-ring on the lower housing. Before
installing crankshaft into cylinder block, apply a
thin coat of Gasket Sealing Compound to outer
edge of O-ring.
Place lower seal housing on crankshaft.
Thoroughly clean upper seal area of the crank-
shaft. Install new upper seal on crankshaft. Do not
apply sealer to outside diameter of the seal.
Pistons and Connecting Rods
IMPORTANT: It is very important that the pis-
tons in this engine are installed in the correct loca-
tion and direction.
New pistons are stamped “PORT” or “STBD,” and
“EXH.” These markings should be turned toward
the exhaust side (center) of the block. The splash
bowl on the dome of the piston will be located
toward the flywheel and opposite the exhaust port.
IMPORTANT: It is also very important that the
connecting rods are installed with the alignment
1. Extended lip 002036
1. Seal lip 002037
1. O-ring 005280
1
1
1
49068
1. Stamped markings 005283
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