Uneven rod bearing wear, and sometimes piston skirt wear, usually indicates a(n) ____.

Question

Quizplus · Accepted Answer

Uneven rod bearing wear and sometimes piston skirt wear are typically caused by a tapered bearing journal, which causes uneven pressure and wear on the rod and piston. Valve clearance and interference issues would not cause this type of wear, and undersized crank would cause more widespread bearing wear rather than just on the rod bearing.

Uneven Rod Bearing Wear, and Sometimes Piston Skirt Wear, Usually