181
CID (3.0L) 4 CYLINDER GM ENGINE
SERVICE MANUAL NUMBER 26
Engine Identification
The MerCruiser Model can be determined by looking at the LAST TWO LETTERS of the
engine code stamped into the cylinder block. This code number is stamped on all
MerCruiser power packages and replacement partial engines, but not replacement cylinder
block assemblies.
If the engine serial number and/or model decals are missing, the engine code letters may
help in determining the engine models.
a
74520
G.M. Engine Code Location 3.0L -
RX (12-3/4 in. or 324 mm flywheel) - S/N 0L096999 and below
RP (14 in. or 356 mm flywheel) - S/N 0L097000 and above
a - 4 Cylinder-In-Line Engine Code (Next To Distributor)
Engine Rotation
Engine rotation terminology at times has caused confusion. To clarify, engine rotation is
determined by observing flywheel rotation from the rear (transmission or sterndrive end) of
the engine looking forward (water pump end).
PROPELLER ROTATION IS NOT NECESSARILY THE SAME as engine rotation. Do not
rely on propeller rotation in determining engine rotation.
a
72001
a - Left-Hand Rotation (CCW)
Index
Page 3A-8
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