Fastening The Outboard To The Transom - Mercury 200 User Manual

OUTBOARD INSTALLATION

Fastening the Outboard to the Transom

MOUNTING BOLTS
Outboard Transom Mounting Hardware ‑ Supplied with Outboard
Part Number
10‑67755‑1
11‑826711‑17 Nylon insert locknut 1/2‑20
12‑28421
12‑54012
Part Number
10‑67755005
10‑67755006
10‑814259
10‑67755‑1
10‑67755‑2
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
Part Name
Transom bolt
Washer ‑ Inner
Washer ‑ Outer
Available Transom Mounting Bolts
Part Name
Transom bolt 1/2‑20 x 2.50 in. long (1.25 in. thread)
Transom bolt 1/2‑20 x 3.50 in. long (1.25 in. thread)
Transom bolt 1/2‑20 x 4.00 in. long (2.25 in. thread)
Transom bolt 1/2‑20 x 4.50 in. long (2.25 in. thread)
Transom bolt 1/2‑20 x 6.50 in. long (2.75 in. thread)
1/2‑20 x 4.50 in. long (2.25 in. thread)
0.516 in. ID x 1.50 in. OD
0.53 in. ID x 0.87 in. OD
Description
a
b - Transom cracking under
bolt torque
95
Description
b
18961