SERVICE MANUAL NUMBER 26
181 CID (3.0L) 4 CYLINDER GM ENGINE
5.
Pull camshaft and gear assembly out through front of block.
IMPORTANT: Support camshaft carefully when removing to protect camshaft bear-
ings.
a
b
74438
a - Timing Marks
b - Screw Access Holes
Inspection
1.
2.
Measure camshaft bearing journals with a micrometer for out-of-round condition. If
journals exceed .001 in. (0.02 mm) out-of-round, camshaft should be replaced.
Also check camshaft for alignment with V-blocks and dial indicator which indicates exact
amount camshaft is out of true. If dial indicator reads more than .002 in. (0.05 mm)
camshaft should be replaced.
72909
Checking Camshaft Alignment
3.
Inspect camshaft gear and thrust plate for wear or damage. Measure camshaft end play
.001
- .005 in. (0.03-0.1 mm).
b
c
a
d
74439
a - Feeler Gauge
b - Camshaft Gear
c - Camshaft Thrust Plate
d - Take Measurement Here
Index
90-861329--1
MARCH 1999
Page 3A-59
| 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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