SERVICE MANUAL NUMBER 26
181 CID (3.0L) 4 CYLINDER GM ENGINE
Connecting Rod/Piston Assembly
Removal
1.
With oil pan, oil pump and cylinder head removed, use a ridge reamer to remove any
ridge and/or deposits from upper end of cylinder bore.
IMPORTANT: Before ridge and/or deposits are removed, turn crankshaft until piston
is at bottom of stroke and place a cloth on top of piston to collect cuttings. After ridge
and/or deposits are removed, turn crankshaft until piston is at top of stroke, then
remove cloth and cuttings.
2.
3.
Inspect and mark connecting rods and bearing caps.
Remove connecting rod cap and install connecting rod bolt guide (3/8-24) on bolts. Push
connecting rod and piston assembly out of top of cylinder block.
NOTE: It will be necessary to turn crankshaft slightly to disconnect and remove some con-
necting rod and piston assemblies.
a
72892
a - Connecting Rod Bolt Guide (3/8-24) (J-5239)
Disassembly
1.
Disassemble piston from connecting rod using piston pin remover as shown.
b
a
c
d
e
72365
a - Piston Pin Remover (J-24086-B)
b - Arched Base
c - Piston
d - Connecting Rod
e - Rod Support
2.
3.
Position connecting rod on tool rod support with rod support inserted between
connecting rod end and piston. Align piston pin with hole located in top of arched base.
Insert pin remover through hole (located in top of arched base) and into piston pin hole.
Press on pin remover to remove piston pin.
Index
90-861329--1
MARCH 1999
Page 3A-49
| 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