Page 46 - REPOWER REFERENCE GUIDE (2020)

Engine and Drive Installation Requirements
• The engine bed height for the front mounts on V8 and V6 models and 3.0L models with side mounts should be the same
on both sides. This can be checked by tying a string from the left front mount location to the right rear mount location, and
another string from the right front to the left rear. The strings should just touch where they cross.

a - Strings cross
b - Rear mount
c - Front of stringer

a

b

c
68079
• The engine mounts must rest squarely on the engine bed so that the rubber isolator is not preloaded in one direction or the
other. The metal ring must not contact the mount base on the front mount on the V8 and V6 models. Preloading the engine
mount will cause increased vibration.

Typical side front mount
a - Rubber isolator
b - Metal ring
c - Slot
d - Mount base square on the engine bed

a

b

d
c 68080

a
3.0L front mount
a - Rubber isolator
b - Mount base square on the engine bed

b 68081

Page 4A-4 © 2019 Mercury Marine 90-8M0149179 eng NOVEMBER 2018