Mercury MerCruiser Service Manual page 215

2. Install the engine block core hole expansion plugs a minimum of 1/32" below the end of the lead in chamfer of the block
hole.
a
a - Core hole expansion plug
b - Tool
c - Minimum 1/32" below the end of the chamfer
Tube Ref No.
Loctite 242 Threadlocker
66
3. Apply sealant to the threads of the oil gallery plugs.
4. Install the oil gallery plugs indicated. Tighten the oil gallery plugs to the specified torque.
90-8M0099748 eng DECEMBER 2015
Description
Outside diameter of engine block core hole expansion plug
Engine Inspection and Assembly
c
a
59534
Where Used
a
59504
© 2016 Mercury Marine
b
Part No.
92-809821
a - Rear oil gallery plugs
Page 3B-13