REMOVAL, INSTALLATION AND ADJUSTMENTS
SERVICE MANUAL NUMBER 28
90-863160 MAY 2000 Page 2A-3
Transom Thickness and Surface
IMPORTANT: Transom thickness and surface plane (flatness) must be controlled
where the sterndrive unit mounts.
Transom thickness and surface must conform to the following:
Transom Specifications
Thickness Between 2 - 2-1/4 in. (51 - 57 mm)
Parallelism Inner and outer surfaces must be parallel within 1/8 in. (3 mm)
Flatness Transom surfaces in area where transom assembly will be
mounted (includes vertical as well as horizontal dimensions):
Inner Surface – Flat within1/8 in. (3 mm)
Outer Surface – Flat within1/16 in. (2 mm)
Angle 10 -16 Degrees
22170
c
a
b
e
d d
72700
a-Transom Thickness
b-Inner Surface
c-Outer Surface
d-Transom Plate Coverage
e-Transom Angle
75479
c
a
70004
b
a-Measuring Thickness
b-Measuring Surface Flatness
c-Suitable Mandrel To Check For Uniform Transom Thickness.
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