Page 297 - REPOWER REFERENCE GUIDE (2020)

Engine Alignment

• New locking method for lower nut: two full turns once the engine is aligned, to compensate for the softer mount

a b

c

d

10.16 cm 13.97 cm
(4.0 in.) (5.5 in.) 58056

Side mounts
a - Prior generation engine mount
b - New engine mount
c - Bottom nut
d - Do not turn

Rear Mounts
1. Rear mount changes
• 55 durometer mounts vs 65 durometer previously
• Increased outside diameter
2. Mounting hardware changes
• Flywheel housing changes
• Top washer, spacer, and bottom washer ‑ increased dimensions to account for the mount size increase

a b Rear mounts
c a - Prior generation engine mount
b - New engine mount
c - Top washer (4.50 cm [1.77 in.]
d outside diameter)

e d - Spacer (4.80 cm [1.89 in.] outside
diameter, 3.96 cm [1.56 in.] inside
diameter)
e - Mount (4.816 cm [1.896 in.] outside
f diameter)
f - Bottom washer (5.46 cm [2.15 in.]
outside diameter)

58047
3. Flywheel housing changes
• Mounting ear profile

90-8M0149179 eng NOVEMBER 2018 © 2019 Mercury Marine Page 8D-9