ENGINE MECHANICAL
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 3A-117
Installation
IMPORTANT: Do NOT attempt to install rear main seal using a hammer or mallet.
Damage to the seal or rear main bearing carrier could result. The seal is made of
special compounds, Do NOT touch or handle the lips of the seal.
1. Lubricate outer surfaces of seal with clean engine oil.
2. Install new seal in carrier using tool 91-801111260 which will evenly PRESS the seal into
position. Seal will stop (bottom-out) when seated.
IMPORTANT: Whenever thrust plate is removed renew O-ring.
3. Inspect crankshaft thrust plate (flywheel spacer). Be certain there are no scratches,
nicks, cracks, or seizure marks on plate. Renew plate if any are found. (Only minor
grooves or indentations can be removed.)
4. Install new O-ring into groove of thrust plate.
70304
a
b
a-Thrust Plate
b-O-Ring
5. Install thrust plate with O-ring towards crankshaft. Tighten thrust plate retaining screw
securely.
6. Install the flywheel.
IMPORTANT: Flywheel bolts may be used a maximum of 3 times within the prescribed
torque limits.
7. Lubricate threads of flywheel bolts (6) with clean engine oil and install. Torque bolts to
110 Nm (81 lb-ft).
8. On Sterndrive (MCM) Models: Install the coupler. Torque bolts to 30 Nm (22 lb-ft).
9. On Inboard (MIE) Models: Install the drive plate. Torque bolts to 72 Nm (53 lb-ft).
10. Install flywheel housing rear portion. Torque bolts to 50 Nm (37 lb-ft).
11. Complete the engine assembly.
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