Mercury MerCruiser MCM 502 Mag MPI User Manual

454 CID (7.4L) / 502 CID (8.2L)
SERVICE MANUAL NUMBER 23
Page 3A-7
90-861326--1 MARCH 1999
454 Mag / 502 Mag / 8.2L (Except 7.4L MPI L-29) Engine Specifications
(Continued)
CYLINDER BORE
MODEL 454 MAG 502 MAG / 8.2L
Diameter
4.2451-4.2525
(107.826-108.013)
4.4655-4.4662
(113.423-113.441)
Out of Round
Production .001 (0.025) Max
Out
of
Round
Service .002 (0.05) Max
Taper
Production
Thrust
Side
.0005 (0.0127) Max
T
aper
Relief Side .001 (0.0254) Max
Service .001 (0.02) Over Production
PISTON
MODEL 454 MAG 502 MAG / 8.2L
Clearance
Production
.0025-.0037
(0.0635-0.0939)
.0040-.0057 (0.1016-0.1447)
Service .0075 (0.15) Max .0065 (0.16) Max
PISTON PIN
MODEL 454 MAG 502 MAG / 8.2L
Diameter .9895-.9898 (25.134-24.140)
Clearance In Pin
Production .00025-.00035 (0.0064-0.0088)
Clearance
In
Pin
Service .001 (0.025) Max
Fit In Rod .0008-.0016 (0.021-0.040) Interference
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Index

Mercury MerCruiser MCM 502 Mag MPI Specifications

General

Brand	Mercury
Model	MerCruiser MCM 502 Mag MPI
Category	Engine
Language	English