181
CID (3.0L) 4 CYLINDER GM ENGINE
SERVICE MANUAL NUMBER 26
PISTON SELECTION
1.
Check used piston to cylinder bore clearance as follows:
a. Measure cylinder bore diameter with a snap gauge 2-1/2 in. (64 mm) from top of cyl-
inder bore as follows.
72386
b. Measure piston diameter at skirt across center line of piston pin as shown.
72911
c. Subtract piston diameter from cylinder bore diameter to determine piston-to-bore
clearance.
d. Determine if piston-to-bore clearance is in acceptable range shown in “Specifica-
tions.”
2.
3.
4.
If used piston is not satisfactory, determine if a new piston can be selected to fit cylinder
bore within acceptable range.
If cylinder bore must be reconditioned, measure new piston diameter (across centerline
of piston pin), then hone cylinder bore to correct clearance (preferable range).
Mark piston to identify cylinder for which it was fitted.
Index
Page 3A-68
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