207
POWERHEAD
POWERHEAD ASSEMBLY
10
POWERHEAD
ASSEMBLY
IMPORTANT: Proceed slowly. Make no forced
assemblies unless a pressing operation is called
for. All internal components must be perfectly
clean and lightly coated with outboard lubricant.
IMPORTANT: Use new wrist pin retaining rings,
gaskets, seals, and O-rings during assembly.
Crankshaft Assembly
Oil the end of the crankshaft. Use Crankshaft
Bearing/Sleeve Installer, P/N 338647, and place a
new lower main bearing onto crankshaft with let-
tered side facing the tool. Install bearing until it
seats on the crankshaft.
Oil the end of the crankshaft. Use Crankshaft
Bearing/Sleeve Installer, P/N 338647, to drive a
new sleeve onto the crankshaft until the installer
contacts the lower main bearing.
If the installer sticks on the sleeve after installa-
tion, thread Slide Hammer, P/N 391008, into
installer and pull it off.
IMPORTANT: Inspect sleeve after installation.
Sleeve must not be used if surface is damaged.
Use retaining ring pliers to install bearing retaining
ring with sharp edge facing away from bearing.
Lubricate a new driveshaft O-ring and lightly lubri-
cate crankshaft splines with Moly Lube. Install
O-ring in sleeve.
Lubricate the center main bearings and split
sleeves with outboard lubricant and install them in
their original positions. The split sleeve ring
grooves must face toward driveshaft (lower) end
of crankshaft when installed.
Lightly coat the outside edge of a new lower hous-
ing seal with Gasket Sealing Compound. Press
against outer case of the seal to install seal in the
002029
002030
1. Bearing retaining ring
2. O-ring
002031
1. Groove toward driveshaft end 002032
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