181
CID (3.0L) 4 CYLINDER GM ENGINE
SERVICE MANUAL NUMBER 26
Cleaning and Inspection
1.
2.
3.
4.
5.
Wash all parts in cleaning solvent and dry with compressed air.
Inspect pump body and cover for cracks or excessive wear.
Inspect pump gears for damage and excessive wear.
Check for loose drive gear shaft in pump body.
Inspect inside of pump cover for wear that would permit oil to leak past ends of gears.
IMPORTANT: Pump gears and body are not serviced separately. If pump gears or
body are damaged or worn, replacement of entire oil pump assembly is necessary.
6.
7.
Inspect pickup screen and pipe assembly for damage to screen and pipe.
Check pressure regulator valve for fit.
Reassembly
CAUTION
Be careful of twisting, shearing or collapsing pipe while installing in pump. Pickup
screen must be parallel to oil pan bottom when oil pump is installed.
If pickup screen and pipe assembly was removed, mount pump in a soft-jawed vise, apply
Quicksilver Perfect Seal to end of new pipe and, using oil pump suction pipe installer
(J-21882), tap the pipe in place with a hammer.
IMPORTANT: Oil internal parts liberally before installation.
1.
2.
3.
Install pressure regulator valve and related parts.
Install drive gear in pump body.
Install idler gear in pump body with smooth side of gear toward pump cover opening.
Align marks made in disassembly.
4.
5.
Fill gear cavity with engine oil.
Install pump cover and torque attaching bolts to 80 lb-in. (9 Nm).
Installation
1.
2.
3.
Install pump to rear main bearing.
Torque oil pump bolt to 65 lb-ft (88 Nm).
Install oil pan as outlined. The one-piece gasket for the oil pan may be reused if still
pliable and not cracked, torn, etc.
Index
Page 3A-36
90-861329--1 MARCH 1999
| 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.
Need help to install automate choke
Need help to instal automate choke