MerCruiser 305 CID (5.0L) Service Manual page 228

5.0l / 305 cid / 5.7l / 350 cid ENGINES
9. Measure crankshaft end play (see "Specifications") by forcing the crankshaft to the ex-
treme front position. Measure at the front end of the rear main bearing with a feeler
gauge as shown.
Replacement
NOTE: Main bearings may be replaced with or without removing crankshaft.
Main Bearing Inserts
WITH CRANKSHAFT REMOVED
1. Remove and inspect the crankshaft.
2. Remove the main bearings from the cylinder block and main bearing caps.
3. Coat bearing surfaces of new main bearings with oil.
4. Install the upper bearings in cylinder block.
5. Install the lower bearings in main bearing caps.
6. Install the crankshaft.
Index
Page 3A-62
a - Force Crankshaft to Extreme Forward Position
a - Lower Bearing Insert
b - Upper Bearing Insert
c - Oil Groove
a
a
b
SERVICE MANUAL NUMBER 24
c
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