7.4L
Gen VI Engine Specifications
Unit of Measurement
In. (mm)
VALVE SYSTEM
Lifter
Hydraulic Roller
1.70 to 1
Rocker Arm Ratio
Face Angle (Intake & Exhaust)
Seat Angle (Intake & Exhaust)
Seat Runout (Intake & Exhaust)
45°
46°
.002 (0.05) Max
.0300-.0600 (0.7620-1.5240)
.0600-.0950 (1.5240-2.4130)
.0010-.0029 (0.0254-0.0737)
.0012-.0031 (0.0300-0.0787)
.0037 (0.0939)
Intake
Seat Width
Production
Service
Exhaust
Intake
Exhaust
Intake
Stem
Clearance
Exhaust
.0049 (0.1244)
Valve Lash (Intake and Exhaust)
Net Lash
VALVE SPRING
Free Length
2.12 (53.9)
1.838
71-79
in. (46.6850 mm) at
Lbs. (316-351 N)
Closed
Valve Spring
Pressure
Open 1.3470 in. (34.2130 mm) at
238-262 Lbs. (1059-1165N)
Installed Height
1.8380 (46.6850) ± .07937 (47.6)
Index
90-823224--2
796
454 CID (7.4L) / 502 CID (8.2L) - 3A-13
| 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.
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Excellent print.
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