3A-48 - ENGINES 90-823225--1 1096
Crankcase Front Cover
IMPORTANT: The following information refers to
all engines except Gen+ Engines. Crankcase
front cover is not reusable per G.M. Specifica-
tion. It must be replaced if removed.
Removal
1. Remove engine from boat if necessary to gain
access to cover.
2. Remove torsional damper and oil pan.
3. Remove water circulating pump.
4. Remove crankcase front cover.
5. If damaged, drive oil seal out of front cover (from
the rear) using a punch.
Cleaning and Inspection
Clean front cover in solvent and dry with compressed
air. Clean old gasket material and sealer from mating
surfaces on cover and cylinder block. Check gasket
surface on front cover for distortion, and true if neces-
sary. Surfaces must be clean and flat or oil leakage
may result.
Installation
1. Install oil seal in cover with lip of seal toward in-
side of engine, using crankcase front cover seal
installer. Support cover around seal area with ap-
propriate tool as shown.
72348
a - Crankcase Front Cover Seal Installer J-35468)
b - Support (to Prevent Distorting Cover)
b
a
2. Coat both sides of front cover gasket with Quick-
silver Perfect Seal and place in position on en-
gine.
3. Install front cover, making sure holes in cover
align with dowel pins in block. Torque front cover
attaching screws to 100 lb. in. (11 N·m).
4. Install oil pan and torsional damper as outlined.
5. Install water circulating pump.
6. Reinstall engine in boat.
7. Fill crankcase with engine oil.
8. Follow procedures in Section 6A or 6B of this
manual:
Seawater Cooled Models: Provide for adequate
water supply to seawater pickup (see Section
6A).
Closed Cooled Models: Refill closed cooling
section (see Section 6B), and provide adequate
water supply to seawater pickup.
!
CAUTION
Ensure that cooling water supply is available be-
fore starting the engine.
9. Start engine and check for water and oil leaks.
Flywheel
Removal
1. Remove engine from boat.
2. Remove transmission, if so equipped.
3. Refer to “Flywheel Housing” description in this
section and remove flywheel housing and related
parts.
4. Remove MCM coupler or MIE drive plate.
To Next Page
Loading...
