239
POWERHEAD
POWERHEAD INSTALLATION
11
POWERHEAD
INSTALLATION
Apply Permatex No. 2 to both sides of a new base
gasket around the exhaust port only. Install gasket
on adapter. To ensure proper sealing, mating sur-
faces must be clean and dry.
Coat the driveshaft splines with Moly Lube. Do not
apply lubricant to end of driveshaft.
Use Lifting Fixture, P/N 396748, and hoist to
slowly lower powerhead onto exhaust housing. If
necessary, rotate flywheel in a clockwise direction
to align crankshaft and driveshaft splines.
Apply Gasket Sealing Compound to the threads of
all powerhead screws.
Loosely install all fasteners before tightening.
Tighten the 3/8 in. diameter powerhead screws to
a torque of 20 to 22 ft. lbs. (27 to 30 N·m) in the
sequence shown.
Tighten the 5/16 in. diameter powerhead screws
to a torque of 144 to 168 in. lbs. (16.5 to 19 N·m)
in the sequence shown.
IMPORTANT: Retighten powerhead mounting
screws after outboard has been run at full operat-
ing temperature and allowed to cool.
Install two front and one rear powerhead nuts.
Tighten nuts 144 to 168 in. lbs. (16.5 to 19 N·m).
1. Inner exhaust area 000661
48758
004261
1. Front powerhead nut (2) 004262
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