209
POWERHEAD
POWERHEAD ASSEMBLY
10
Thoroughly clean upper seal area of the crank-
shaft. Install new upper seal on crankshaft. Do not
apply sealer to outside edge of the seal.
Pistons and Connecting Rods
It is very important that the pistons
in this engine are installed in the correct loca-
tion and direction. Engine damage will occur if
installed incorrectly.
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.
It is also very important that the
connecting rods are installed with the align-
ment dots and the diagonal oil hole facing up,
toward the flywheel.
Apply Needle Bearing Grease to the wrist pin
bearings. Install the bearings in the small end of
the connecting rod. Align bearings with Wrist Pin
Bearing Tool, P/N 336660.
Place the two wrist pin thrust washers on the tool
with flat side of the washers facing out.
Oil the wrist pin bore and wrist pin. Place connect-
ing rod, with bearings, washers, and tool, into the
piston with the alignment dots facing the top of the
piston.
49068
1. Stamped markings 005283
1. Oil hole
2. Raised dots
002055
1. Wrist pin bearings
2. Tool, P/N 336660
31794
1. Wrist pin thrust washers DR3480
31793
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