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Mercury MerCruiser 8.1S - Initial Engine Alignment

Mercury MerCruiser 8.1S
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GASOLINE ENGINE 8.1 S INBOARD MODELS
Page 26 of 58
5. Loosen clamping bolts and nuts on all 4 engine mount brackets to ensure the following:
Large diameter of mount trunnion extended as shown.
Each mount base is downward. Tighten clamping bolts and nuts slightly to prevent mov-
ing in or out. Mounts must be free to pivot when installing engine.
70140
70158
e
a
e
b
f
c
d
d
c
f
b
a
Typical Front Mount Typical Rear Mount
a-Locking Nut
b-Adjusting Nut
c-Trunnion Clamp Bolts And Nuts, With Lock Washers
d-3/8 in. + 1/16 in. (10 mm + 2 mm)
e-2-5/8 in. + 1/16 in. (67 mm + 2 mm)
f-Mount Trunnion
Initial Engine Alignment
NOTE: The center lifting eye tool (91-863375) used for engine alignment can be ordered
from the Quicksilver Accessories Guide.
77637
a
a-Center Lifting Eye Tool

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