SERVICE MANUAL NUMBER 26
181 CID (3.0L) 4 CYLINDER GM ENGINE
7.
Measure cylinder bores to ensure they meet specifications.
CAUTION
Measure cylinder walls for taper, out-of-round or excessive ridge at top of ring
travel. This should be done with a dial indicator or inside micrometer. Carefully
work gauge up and down cylinder to determine taper and turn it to different points
around cylinder wall to determine out-of-round condition. If cylinders exceed
specifications, boring and/or honing will be necessary.
a
b
b
a
72385
Cylinder Measurement
a - At right angle to centerline of engine
b - Parallel to centerline of engine
“Out-of-Round” = Difference between “A” and “B”
“Taper” =Difference between measurement “A” at top of cylinder bore and “A” measurement
at bottom of cylinder bore
72386
Measuring Cylinder Bore With Snap Gauge
72387
Measuring Cylinder Bore With Dial Indicator
Index
90-861329--1
MARCH 1999
Page 3A-65
| 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 |
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| 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