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
White exhaust smoke that smells sweet usually indicates:
Answer: Coolant burning in the combustion chamber
Sweet-smelling white smoke is coolant entering the cylinders, often from a head gasket leak.
A telescoping gauge is used together with a micrometer to measure:
Answer: Cylinder bore diameter
A telescoping gauge transfers the bore size to a micrometer for measurement.
Valve seat concentricity is checked with a:
Answer: Dial indicator and pilot or dye
A dial indicator on a pilot, or marking dye, verifies the seat runs true to the guide.
Low oil pressure at idle but normal pressure at speed often indicates:
Answer: Worn bearings or a tired oil pump
Worn clearances or a weak pump can't maintain pressure at idle but recover at higher RPM.
A vacuum gauge reading that is steady but low across all cylinders suggests:
Answer: Late ignition timing or worn rings
A uniformly low steady reading points to general issues like late timing or worn rings.
Before installing new piston rings, the end gap should be checked by:
Answer: Squaring the ring in the bore with a feeler gauge
The ring is squared in the cylinder and the gap measured with a feeler gauge.
A cracked exhaust manifold most commonly produces:
Answer: A ticking noise that worsens when cold
A cracked manifold ticks as gases escape, often louder when cold before the metal expands.