Engine Repair Flashcards
7 cards from real ASE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Engine Repair flashcards as text
A technician finds metal flakes in the oil pan; the most likely cause is:
Answer: Internal bearing or component wear
Metal particles indicate wearing internal components such as bearings.
Engine knock under acceleration that quiets with higher-octane fuel suggests:
Answer: Detonation/pre-ignition
Detonation responds to octane changes and is caused by abnormal combustion.
The purpose of a torque-to-yield head bolt is to:
Answer: Provide consistent clamping by stretching into yield
TTY bolts stretch into their yield range for uniform clamping and are typically single-use.
Low compression in two adjacent cylinders most commonly indicates:
Answer: A blown head gasket between them
Two side-by-side low cylinders point to a head gasket breach between them.
A wet compression test that raises readings after adding oil indicates:
Answer: Worn piston rings
Oil temporarily seals worn rings, raising compression and isolating ring wear.
Excessive crankshaft end play can be corrected by replacing the:
Answer: Thrust bearing
The thrust bearing controls axial crankshaft movement and corrects excessive end play.
A timing chain with excessive slack typically causes:
Answer: Retarded valve timing and a rattle noise
A stretched chain retards valve timing and produces a rattling noise, especially at startup.