SERVICE MANUAL NUMBER 26
181 CID (3.0L) 4 CYLINDER GM ENGINE
Oil Pump
The oil pump consists of two gears and a pressure regulator valve enclosed in a two-piece
housing. Oil pump is driven by distributor shaft which is driven by a helical gear on camshaft.
Removal
1.
2.
Remove oil pan as previously outlined.
Remove gasket carefully as the one-piece gasket for the oil pan may be reused if still
pliable and not cracked, torn, etc.
3.
Remove oil pump.
a
76234
a - Oil Pump
Disassembly
1.
Remove pump cover.
IMPORTANT: Mark gear teeth for reassembly with same teeth indexing.
2.
3.
Remove idler gear and drive gear from pump body.
Remove retaining pin, spring, and pressure regulator valve from pump cover.
IMPORTANT: Do not remove pickup screen and pipe assembly, unless replacement
is necessary. Loss of press fit condition could result in an air leak and loss of oil pres-
sure.
IMPORTANT: Do not disturb pickup screen on pipe. This is serviced as an assembly.
4.
If pickup screen and pipe assembly requires replacement, mount pump in a soft-jawed
vise and extract pipe from pump.
Index
90-861329--1
MARCH 1999
Page 3A-35
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 181 CID |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(6 votes, average: 5 out of 5)
Marine readers have rated Mercury MerCruiser GM 4 Cylinder 181 cid 3.0L Marine Engines Service Manual Number 26 5.0 out of 5.0 based on 6 product reviews. Thanks for sharing this material. Helps a lot after suffering with bad mechanics. spend too much money and nothing very good
great manual, makes impossible jobs possible. without a manual you can not do the job, a must have.
Great resource. Excellent information provided.
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