Mercury MerCruiser Service Manual page 112

Installation
b. Remove the rear engine mounting bolts and hardware.
c. Using an overhead hoist, lift the engine enough to install a stainless steel washer inside the inner diameter of both
fiber washers.
NOTE: This will position the washer between the new engine mount and the transom mounting support, raising the
engine slightly for additional front mount adjustment.
a
a - Fiber washer
b - Steel washer
c - Corrected mount area
d. Using the appropriate hardware as shown, install and tighten both rear engine mounting bolts to the specified torque.
c
d
a
f
b
Description
Rear engine mounting bolts
e. Set the engine on the boat stringers.
f. Relieve the hoist tension.
g. Disconnect the sling from the engine lifting eyes.
19. Attempt to insert the solid end of the alignment tool through the gimbal bearing and into the engine coupler splines.
20. Repeat the necessary steps until the alignment tool easily slides (freely with two fingers) all the way into and out of the
engine coupler splines. Do not check by turning the alignment tool.
21. Fasten the front mount assemblies to the boat stringers using the appropriate hardware.
22. Tighten both front mount locking (jam) nuts to the specified torque.
Description
Front mount locking (jam) nuts
23. Recheck the alignment with the alignment tool. The tool must enter the coupler splines freely. If not, remove the alignment
tool and readjust the front mounts.
Page 2B-8
b
a - Rear engine mount
b - Inner transom plate mount
c - Bolt
d - Washer
e
e - Spacer
f - Fiber washer
g - Steel washer
g
7941
© 2016 Mercury Marine
c
7940
Nm lb‑in.
51 –
Nm lb‑in.
80 –
90-8M0099748 eng DECEMBER 2015
lb‑ft
37.6
lb‑ft
59