Rear Oil Seal; Removal - Mercury MerCruiser Service Manual

Engine Disassembly
2. Remove the retaining clips and remove the piston pin.
3. Mark, separate, and organize parts so that they can be installed in the same locations.

Rear Oil Seal

Removal

The rear main crankshaft oil seal can be replaced without removing the oil pan or the rear main bearing cap from the engine.
1. Remove the flywheel.
2. Remove the seal by carefully using a screwdriver to pry it out of the engine block as shown.
a
IMPORTANT: Do not nick or gouge the engine block or the rear main bearing cap sealing surface. Protect the crankshaft to
seal running surface from damage.
Page 3A-38
c
b
a
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© 2016 Mercury Marine
d
a - Connecting rod
b - Piston
c - Piston pin
d - Piston pin retaining clip (2)
47994
a - Rear main seal
90-8M0099748 eng DECEMBER 2015