
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
When first determining transom strength, use a dial torque wrench. 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.
NOTE: The inside holes on the transom reinforcement plate are for the lower
transom bolts and the outside holes are for the upper transom bolts.
a -
Large transom washer
b -
Transom reinforcement plate
Description
Part Number
Large transom washer
67‑896392
Transom reinforcement plate
67‑896305
18961
a
b
a
b
20860
INSTALLATION
88
eng
Summary of Contents for 40 FourStroke Tiller Handle
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