OUTBOARD INSTALLATION
eng
113
CHECKING BOAT TRANSOM CONSTRUCTION
IMPORTANT: Determine the strength of the boat transom. The
outboard mounting locknuts and bolts should be able to hold
75 Nm (55 lb‑ft) of torque without the boat transom yielding or
cracking. If the boat transom yields or cracks under this torque,
the construction of the transom may not be adequate. The boat
transom must be strengthened or the load carrying area
increased.
a -
Transom yielding under bolt torque
b -
Transom cracking under bolt torque
Use a dial torque wrench to determine transom strength. If the
bolt or nut continues to turn without the torque reading on the
dial increasing, it is an indication that the transom is yielding. The
load area can be increased by using a larger washer or a
transom reinforcement plate.
a -
Large transom washer
b -
Transom reinforcement plate
18961
a
b
a
b
33962
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