MERCURY MERCRUISER GM 4 CYLINDER 1985-1989 WORKSHOP REPAIR SERVICE MANUAL #10 NUMBER 10

Models & Year
Marine Engines GM 4 Cylinder
1985 1986 1987 1988 1989

153 - 181 CID (2.5L - 3.0L)
Models Covered in this Manual
MCM 120 MR
MCM 120 ALPHA I
MCM 2.5L
MCM 140 MR
MCM 140 ALPHA I
MCM 3.0L
SEA RAY 3.0L

Note that the MCM 2.5L - Same as MCM 120.
MCM 3.0L
Sea Ray 3.0L- Same as MCM 140 (Later Models are rated at 130 HP and have 9.2:1 Compression ratio)