Mercury MerCruiser MCM 454 Mag MPI Service Manual page 270

454 CID (7.4L) / 502 CID (8.2L)
IMPORTANT: Do not turn the crankshaft with the gauging plastic installed.
6. If the clearance exceeds specifications, select a new, correct size bearing and measure
the clearance.
Be sure to check what size bearing is being removed in order to determine proper replace-
ment size bearing. If clearance cannot be brought to within specifications, the crankpin will
have to be ground undersize. If the crankpin is already at maximum undersize, replace
crankshaft.
7. Coat the bearing surface with oil. Install the rod cap and torque nuts as follows:
7.4L MPI
454/502/8.2L MPI
8. When all connecting rod bearings have been installed, tap each rod lightly (parallel to
the crankpin) to make sure they have clearance.
9. Measure all connecting rod side clearances (see "Specifications") between connecting
rod caps as shown.
Index
Page 3A-66
Downloaded from https://needmanual.com/
47 lb-ft (64 Nm)
73 lb-ft (99 Nm).
SERVICE MANUAL NUMBER 23
72362
72555
90-861326--1 MARCH 1999