Transom mounting bolt washer surface (inside): Inside transom mounting bolt washer surface flatness tolerance

Related KB links

• Outboard Installation – Fastening the Outboard to the Transom

  Procedure · 1. Use a dial torque wrench to determine transom strength. Tighten the mounting bolt or nut while monitoring the dial reading. 2. If the bolt or nut continues to turn without the torque reading on the dial increasing,...

• Gap between transom clamp and boat transom

  Diagnostic · Cause: Non-flat or stepped transom mounting surface exceeding 3.17 mm (0.125 in.) tolerance

• Transom: Transom mounting surface flatness tolerance

  Spec · 3.17 mm (0.125 in.) conditions={"note":"No step in the transom mounting surface is allowed"}

• Fastening the Outboard to the Transom

  Procedure · 1. Use supplied outboard transom mounting hardware: mounting bolt (½-20 x 4.50 in., Part No. 67755-1), nylon insert locknut (½-20, Part No. 826711-17), flat washer 1.50 in. dia. (Part No. 28421), and flat washer 0.875...

• N/A - Bolt or nut continues to turn without torque reading increasing during transom mounting

  Diagnostic · Cause: Transom is yielding (insufficient structural strength) Test: Apply dial torque wrench to mounting bolt/nut and observe whether torque value increases with rotation