Mercury MerCruiser MCM 454 Mag MPI

454 CID (7.4L) / 502 CID (8.2L) SERVICE MANUAL NUMBER 23
Page 3A-24
90-861326--1 MARCH 1999
NOTE: Engine failures, which result from the foregoing conditions, are beyond the control
of MerCruiser; therefore, no warranty will apply to failures which occur under these condi-
tions.
72425
Detonation Damage
72315
a
b
c
d
Combustion Description
a-Spark Occurs
b-Combustion Begins
c-Combustion Continues
d-Detonation Occurs
Downloaded from https://needmanual.com/!
Index