226
POWERHEAD
POWERHEAD INSTALLATION
POWERHEAD
INSTALLATION
Powerhead Mounting
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.
Slowly lower powerhead onto exhaust housing.
Guide into position over alignment pin at rear of
exhaust housing. If necessary, rotate flywheel in a
clockwise direction to align crankshaft and drive-
shaft splines.
Apply
Triple-Guard
grease to the threads, and
Gasket Sealing Compound
to the shank of the
powerhead screws.
Apply
Triple-Guard
grease to upper mount screw
threads.
Loosely install all powerhead screws and upper
mount screws before tightening.
•
Tighten the six large powerhead screws to a
torque of 18 to 20 ft. lbs. (24 to 27 N·m) in the
sequence shown.
•
Tighten the five small powerhead screws to a
torque of 60 to 84 in. lbs. (7 to 9.5 N·m).
•
Tighten the upper mount screws to a torque of
110 to 130 ft. lbs. (149 to 176 N·m). Make sure
that screw heads are tight against steering arm.
1.
Apply
Permatex No. 2
here
002164
1.
Alignment pin
002162
1
1
1.
Large powerhead screws
2.
Small powerhead screws
3.
Upper mount screws
002153
1.
Rear small powerhead screw
002160
Large screw torque sequence, 1–8
Small screw torque sequence, A–E
002167
2
1
3
2
1
Summary of Contents for E75DPLSCB
Page 1: ...2008 SC E TEC 75 90 P N 5007527 75 90 HP 5007527 Service Manual ...
Page 2: ......
Page 231: ...POWERHEAD POWERHEAD VIEWS 229 11 POWERHEAD VIEWS Port Short Block Starboard Short Block ...
Page 232: ...230 POWERHEAD POWERHEAD VIEWS Port Dressed Powerhead Starboard Dressed Powerhead ...
Page 233: ...POWERHEAD POWERHEAD VIEWS 231 11 Front ...
Page 234: ...232 POWERHEAD POWERHEAD VIEWS Rear ...
Page 235: ...POWERHEAD POWERHEAD VIEWS 233 11 Top ...
Page 302: ...S 2 ...
Page 349: ...2008 SC E TEC 75 90 P N 5007527 75 90 HP 5007527 Service Manual ...