Inside transom mounting bolt washer surface: Inside transom mounting bolt washer surface flatness tolerance

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• Fastening the Outboard to the Transom

  Procedure · 1. Ensure the transom mounting surface is flat within 3.17 mm (0.125 in.). No step in the transom mounting surface is allowed. WARNING: No step in the transom mounting surface is allowed. No gap between the transom cl...

• Transom visibly cracks under mounting bolt torque

  Diagnostic · Cause: Boat transom construction is inadequate to handle outboard mounting loads Test: Apply 75 Nm (55 lb-ft) torque to mounting locknut/bolt and inspect transom for cracking or deformation Expected: No cracking or yi...

• Inside transom mounting bolt washer surface: Inside transom mounting bolt washer surface flatness tolerance

  Spec · 0.125 in conditions={}

• Outboard Transom Mounting – Hardware Installation

  Procedure · 1. Apply marine sealer to the shank of the outboard mounting bolts (not the threads). 2. Install the four 0.500 in. diameter outboard mounting bolts with 0.875 in. flat washers, 1.500 in. flat washers, and nylon inser...

• Bolt or nut continues to turn without dial torque reading increasing during transom strength check

  Diagnostic · Cause: Boat transom is yielding under bolt torque; transom construction may not be adequate Test: Apply 75 Nm (55 lb-ft) torque to mounting locknut/bolt using a dial torque wrench and observe dial reading Expected: To...