MAINTENANCE
SERVICE MANUAL NUMBER 23
MIE (Inboard) Models
MIE 454 Mag
MPI Horizon
Model
MIE 7.4L MPI
MIE 8.2L MPI
Propshaft Horsepower
(SAV1 Rating)
3101
(2752)
385
1
4001
Propshaft Kilowatts
(SAV1 Rating)
2311
(2052)
287
8
1
2981
Number of Cylinders
502
(8.2L)
C.I.D.
Displacement
454 C.I.D (7.4L)
4.25 x 4.00 (108 x 101.6)
4.47
(113.5
x 4.00
x 101.6)
Bore/Stroke In. (mm)
Compression Ratio
9.3:1
8.6:1
8.75:1
Compression Pressure
Minimum100 psi (690 kPa) 6
6003
Idle rpm (in Forward Gear)5
Max. rpm (at W.O.T.)
Oil Pressure (at 2000 rpm)
Min. Oil Pressure (at Idle)
Electrical System
4000-44003
4400-48003
Minimum 30 psi (207 kPa)
Minimum 4 psi (28 kPa)
12 V Negative (–) Ground
43 psi (248 kPa)
Fuel Pressure (Running)
Min. Battery Requirements
Firing Order
650 cca, 825 mca, or 150Ah
1-8-4-3-6-5-7-2
AC MR43LTS
Champion
RV12YC
AC MR43T
Champion
RV15YC4
AC MR43T
NGK BR6FZX
(Platinum)
Spark Plug Type
Spark Plug Gap
NGK BPR6EFS
NGK BR6FS
NGK: .035 in.
(.9 mm)
Others: .040 in.
.045
in.
.040 in. (1 mm)
(1.1
mm)
(1
mm)
Timing (at Idle rpm)
Thermostat
8 Degrees BTDC4
160° F (71° C)
1
2
Power rated in accordance with NMMA (National Marine Manufacturer’s Association) rating procedures.
Power rated in accordance with SAV1 rating procedures. This rating procedure is used to certify that the engine
complies “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
4
5
6
Measured using a accurate service tachometer with engine at normal operating temperature.
Timing must be set using a special procedure as outlined in the appropriate section of this manual.
Idle speed on EFI engines is not adjustable.
Minimum recorded compression in any one cylinder should not be less than 70 percent of the highest recorded
cylinder.
Index
Page 1B-10
90-861326--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...