SERVICE MANUAL NUMBER 23
454 CID (7.4L) / 502 CID (8.2L)
454
Mag / 502 Mag / 8.2L (Except 7.4L MPI L-29) Engine Specifications
(Continued)
ROLLER TAPPET CAMSHAFT
MODEL
454 MAG / 502 MAG / 8.2L
.301 (7.645)
Exhaust
Intake
Lobe Lift ± .020 (0.051)
.301 (7.645)
Exhaust
Intake
227°
Duration at .050 In.(1.27mm)
Cam Lift
211°
Journal Diameter
Journal Out Of Round
Camshaft Runout
1.9482-1.9492 (49.485-49.509)
.001 (0.025) Max
.002 (0.051) Max
.375
(9.5) from taut position
[total .75 (19)]
Timing Chain Deflection
FLYWHEEL
MODEL
454 MAG / 502 MAG / 8.2L
Runout
.008 (0.203) Max
CYLINDER HEAD
MODEL
454 MAG / 502 MAG / 8.2L
.007
(0.076)
(0.178) Overall Maximum .003
within a 6 in. (152 mm) Span
Gasket Surface Flatness
Index
90-861326--1 MARCH 1999
Page 3A-11
| 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...