Engine Block - Mercury MerCruiser Service Manual

Engine Disassembly
3. If new main or connecting rod bearings are to be installed, remove the main bearing inserts from the engine block and the
bearing caps or connecting rod bearing inserts from the connecting rods and caps. Install new bearings.

Engine Block

Disassembly
1. Remove all engine components.
2. Remove the camshaft rear bearing hole expansion cup plug.
3. Unscrew the oil gallery plugs.
Page 3A-42 © 2016 Mercury Marine
a - Rear of engine block camshaft
opening
a
b - Rear camshaft expansion plug
b
59503
a -
a
59504
90-8M0099748 eng DECEMBER 2015
Rear oil gallery plugs