Which of the following is the LEAST-Likely cause of a compression leak?
A) Worn piston rings
B) A timed spark
C) Broken piston rings
D) Burned valves

Question

Quizplus · Accepted Answer

A timed spark is related to the ignition system and does not directly cause a compression leak. Compression leaks are typically due to issues that allow air to escape from the combustion chamber, such as worn or broken piston rings and burned valves.

Which of the Following Is the LEAST-Likely Cause of a Compression