Mercury MerCruiser D2.8L D-Tronic Service Manual page 325

SERVICE MANUAL NUMBER 22
MAIN BEARINGS (MEASUREMENT)
1. Inspect bearings. Refer to Examples of Bearing Failures.
2. To check clearance of center main bearings:
a. Install bearings in original carrier halves, if removed.
b. Observing marks made earlier, assemble carriers. Torque bolts with washers to
c. Measure inner diameter of bearing as shown.
Measuring Inner Diameter Of Bearing
d. Measure outer diameter of matching crankshaft journal as shown.
Measuring Outer Diameter Of Journal
e. Calculate difference between measurement taken in step c. and d. (clearance) and
90-860074--1 FEBRUARY 2002
42 Nm (31 lb-ft).
refer to specifications for maximum clearance of bearing being checked.
ENGINE MECHANICAL
70310
70311
Page 3A-125