Page 290 - REPOWER REFERENCE GUIDE (2020)

Engine Alignment
Lubricants, Sealants, Adhesives

Tube Ref No. Description Where Used Part No.
Loctite Silver Graphite Anti-
Seize Spray Front mount stud threads 92-898101390
19 Perfect Seal Engine mounting hardware threads and nuts 92-34227Q02

Special Tools

Alignment hook 91‑863375A 1

Assists during engine alignment.

9190

Alignment Tool Assembly 91‑805475A 1

Used to align the engine to the standard Bravo transom assembly for sterndrive
installation.
9183

Alignment Bar 8M2001017
Aids in aligning the engine to the transom assembly for sterndrive installation.
26831
Sterndrive

Transom and Flywheel Housing Mount

NOTICE

Mismatched flywheel housing mounts and inner transom plate mounting hardware will result in improper engine alignment
and possible engine damage. Ensure that the flywheel housing mounts and the inner transom plate mounting hardware, port
and starboard, are the correct parts and match before installing the engine.
1. Determine the type of flywheel housing mounts installed. Early style flywheel housing mounts have a smooth bottom
surface. New design mounts have a knurled bottom surface.

Typical flywheel housing
a - Early style mount (smooth
surface)
b - New design mount (knurled
surface)

a b
8174
IMPORTANT: Fiber washers are used on the inner transom plate with both the early style and new design mounts.

Page 8D-2 © 2019 Mercury Marine 90-8M0149179 eng NOVEMBER 2018