Tune-Up Specifications
MCM (Stern Drive)
MCM 7.4L
MCM 7.4L PT Bravo
Three
MCM 502
EFI
Magnum
MCM 454
Magnum
MCM 454
EFI
MCM 502
Magnum
Model
Propshaft Ratings
HP (KW)
300
(224)
300 (224)
350 (261)
385 (287)
390 (291)
415 (309)
Number of Cylinders
Displacement
V-8
454 C.I.D (7.4L)
4.25x4.00 (108x101.6)
502 C.I.D. (8.2L)
4.47
x 4.00
x 101.6)
Bore/Stroke In. (mm)
(113.5
Compression Ratio
8.0:1
8.6:1
Compression Pressure
150 PSI (1034 kPa)
600
Idle RPM
(in Forward Gear)
650
650
600
Max. RPM (at W.O.T.)
4200-4600
4600-5000
Oil Pressure
(at 2000 RPM)
30-70
PSI (207-483 kPa)
Min. Oil Pressure
(at Idle)
4
PSI (28 kPa)
Fuel Pump Pressure
(at 1800 RPM)
3-7
PSI (21-48 kPa)
Fuel Rail Pressure
37 PSI
37 PSI
(Running) (E.F.I. Only)
(255 kPa)
(255 kPa)
Electrical System
12 V Negative (–) Ground
650 cca, 550 cca, 650 cca,
825 mca, 700 mca or 825 mca,
or 150A/h 120A/h or 150A/h
450
575
90A/h
cca
mca
Min. Battery
Requirements
Firing Order
1-8-4-3-6-5-7-2
Spark Plug Type
Spark Plug Gap
Timing (at Idle RPM)
AC MR43T/Champion RV15YC4/NGK BR6FS
.035 in (0.9 mm)
8 Degrees BTDC
Preliminary Idle Mixture
Thermostat
1 1/4 Turns
° F
1 1/4 Turns
143° F
143
160° F
(71° C)
160° F
(71° C)
(62
° C)
(62° C)
Index
1B-4 - MAINTENANCE
90-823224--2 796
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
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