SERVICE MANUAL NUMBER 26
181 CID (3.0L) 4 CYLINDER GM ENGINE
Replacing Oil Seal (Head Installed)
1.
2.
3.
4.
Remove rocker arm cover.
Remove spark plug, rocker arm and push rod on cylinder to be serviced.
Place piston for that cylinder at TDC to prevent valves from dropping into the cylinder.
Compress valve spring with tool (J-5892) and remove valve keys, valve spring cap,
spring shield and valve spring.
b
72881
a
a - Valve Spring Compressor (J-5892)
b - Rocker Arm Nut
5.
6.
Remove valve stem oil seal.
To install, set valve spring, (close, coiled end of spring is installed against cylinder head)
valve shield and valve cap in place. Compress spring with tool (J-5892) and install oil
seal in lower groove of stem, making sure that seal is flat and not twisted.
NOTE: A light coat of oil on seal will help prevent twisting when compressor tool is released.
IMPORTANT: Do not turn crankshaft while valve springs, retainers, and locks are
removed or valves will fall into cylinder.
7.
Install valve keys and release compressor tool. Be sure that keys seat properly in upper
groove of valve stem.
8.
Install and adjust valve mechanism.
9.
Install push rods and rocker arm assemblies.
Torque rocker arm nuts as described in “Specifications.”
Install rocker arm cover and torque to 40 lb-in. (4.5 Nm).
Install spark plug and torque to 22 lb-ft (30 Nm).
Repeat steps 2 through 8 for other cylinders.
10.
11.
12.
13.
Index
90-861329--1
MARCH 1999
Page 3A-23
| 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)
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Need help to install automate choke
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