454
CID (7.4L) / 502 CID (8.2L)
SERVICE MANUAL NUMBER 23
Rear Main Oil Seal
The rear crankshaft oil seal can be replaced without removing the oil pan or rear main bear-
ing cap from engine.
Removal
Remove seal by using a screwdriver to pry it out of engine block as shown.
a
72559
a - Rear Main Seal (Crankshaft Oil Seal)
IMPORTANT: Do not nick or gouge the engine block or rear main bearing cap sealing
surface. Protect end of crankshaft and crankshaft/seal running surface from
damage, also.
Cleaning and Inspection
Clean crankshaft/seal running surface and seal retainer.
IMPORTANT: Correct rotation oil seal must be used to prevent oil leak.
a
73126
Rear Seal WITHOUT Helical Grooves
a - Seal Lip Toward Inside Of Engine
b
a
72618
Rear Seal WITH Helical Grooves
a - Seal Lip Toward Inside Of Engine
b - Rotation of Crankshaft As Viewed From Flywheel End Looking Forward
Index
Page 3A-60
90-861326--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(1 votes, average: 5 out of 5)
Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...