SERVICE MANUAL NUMBER 24
5.0l / 305 cid / 5.7l / 350 cid ENGINES
General Information
Repair Procedures
Some of the repairs in this section must be completed with engine removed from boat.
Engine removal depends upon type of repair and boat design. Place engine on repair stand
for major repairs.
Lubricate all moving parts (during reassembly) with engine oil. Apply Quicksilver Perfect
Seal on threads of and under heads of cylinder head bolts, and on threads of all cylinder
block external bolts, screws and studs.
Engine Identification
The Mercury 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 Mercury
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
72312
a - Location Of G.M. Engine Code
Following is a list of GM engines and their respective code letters.
MCM (Sterndrive)
Code
ZA
5.0L
5.7L
5.0L
5.7L
350
Alpha and Bravo
Alpha and Bravo
MH
MH
MH
MH
MH
EFI Alpha and Bravo
EFI Alpha and Bravo
Mag MPI Alpha and Bravo
Mag MPI Alpha and Bravo Horizon
350
MIE (Ski and Inboard)
Code
MH
MH
MH
MK
5.7L
350
Ski
Mag MPI Ski
Black Scorpion
5.7L
350
350
Inboard
Mag MPI Inboard
Mag MPI Horizon Inboard
MK
MK
Index
90-861327--1
OCTOBER 1999
Page 3A-11
Product Specification
Categories | Mercury MerCruiser Manuals |
---|---|
Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
Model Year | 1998, 1999, 2000, 2001 |
Download File |
|
Document File Type | |
Copyright | Attribution Non-commercial |
Great performance engine.
Class 1