Installation Requirements; Transom Thickness And Surface - FNM HPEP 225 Installation Manual

INSTALLATION REQUIREMENTS

Electrical system components on this engine are not external ignition protected. DO NOT
STORE OR UTILIZE GASOLINE ON BOATS EQUIPPED WITH THESE ENGINES, UNLESS
PROVISIONS HAVE BEEN MADE TO EXCLUDE GASOLINE VAPORS FROM ENGINE
COMPARTMENT (REF: 33 CFR). Failure to comply could result in fire, explosion and/or severe
personal injury.

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:
Thickness
Parallelism
Surface Plane
Angle
1 If using a molded composite fiberglass transom material like the Virtual Engineerer Composite (VEC), the al-
lowable transom thickness range is 1.90 in. (49 mm) - 2.25 in. (57 mm).
WARNING
Transom Specifications
Between 2 - 2-1/4 in. (51 - 57 mm) for 8 in. (203 mm) to either
side of the vertical centerline
Inner and outer surfaces must be parallel within 1/8 in. (3 mm)
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)
10-16 Degrees
a - Transom Thickness
b - Inner Surface
c - Outer Surface
d - Transom Plate Coverage
e - Transom Angle
1 1
11