MAINTENANCE
SERVICE MANUAL NUMBER 24
Engine and Tune-Up Specifications (Continued)
MCM (Sterndrive) (continued)
MCM 5.0L EFI MCM 5.7L EFI MCM 350 MAG
Model
ALPHA
BRAVO
ALPHA
BRAVO
MPI ALPHA
BRAVO
Propshaft Horsepower
(SAV1 Rating)
230
172
1
2601
3001( 2752)
2241 (2052)
Propshaft Kilowatts
(SAV1 Rating)
1
1941
V-8
Number of Cylinders
Displacement
305 cid (5.0 l)
x 3.48 (95
x 88.4)
350 cid (5.7 l)
3.74
Bore / Stroke - in. (mm)
4.0 x 3.48 (101.6 x 88.4)
Compression Ratio
9.4:1
Compression Pressure
Idle rpm In Neutral 3
Minimum 100 psi (690 kPa) 7
600 rpm6
Maximum rpm (at WOT)3
4400-4800 rpm
Minimum 30 psi (207 kPa)
Minimum 4 psi (28 kPa)
30 psi (207 kPa)
Oil Pressure (at 2000 rpm)
Minimum Oil Pressure (at Idle)
Fuel Pressure (1800 rpm)
Electrical System
12 V Negative (–) Ground
55 or 65 amp 8
Alternator Rating
Minimum Battery Requirements
Firing Order
550 cca / 700 mca / 120 Ah
1-8-4-3-6-5-7-2
AC - MR43LTS
Champion - RS12YC
NGK - BPR6EFS
Spark Plug Type
Spark Plug Gap
.045 in (1.1 mm)
8° BTDC
Timing (at idle rpm) 5
Thermostat
160° F (71° C)
1
2
Power Rated in Accordance with NMMA (National Marine Manufacturers’ Association) rating procedures.
Power Rated in Accordance with SAV1 rating procedures. This rating procedure is used to certify that the
engine complies with “Stage 1” Bodensee and Swiss Regulations. Horsepower differences shown result from
differences in test rpm, allowable test tolerances, and/or installation of special kit components.
3
Measured using an accurate service tachometer with engine at normal operating temperature.
4
Timing must be set using a special procedure as outlined in the appropriate section of this manual. Timing can-
not be properly set using the conventional method.
A special procedure must be followed to check or adjust idle rpm. Consult your Authorized Mercury MerCruiser
Dealer before attempting this procedure.
5
6
Idle speed on EFI models is not adjustable.
7
Minimum recorded compression in any one cylinder should not be less than 70 percent of the highest recorded
cylinder.
8
Serial Number Break 65Amp starts at OL619000 and up.
Index
Page 1B-8
90-861327--1 OCTOBER 1999
| 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 |
(1 votes, average: 4 out of 4)
Marine readers have rated Mercury MerCruiser Engines Service Manual Number 24 GM V-8 305 CID 350 CID 4.0 out of 4.0 based on 1 product reviews. Great performance engine.
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