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 cylinder head warped beyond service limits across its deck surface should be:
Answer: Resurfaced or replaced if beyond limit
A warped head must be machined flat within spec or replaced to ensure proper gasket sealing.
Excessive blue smoke from the exhaust most commonly indicates:
Answer: Oil burning past rings or valve seals
Blue smoke means oil is entering the combustion chamber, usually past worn rings or valve seals.
A technician measures cylinder bore taper by comparing diameter at the:
Answer: Top and bottom of ring travel
Taper is found by measuring the difference between the top and bottom of the ring travel area.
Milky brown oil on the dipstick usually indicates:
Answer: Coolant mixing with engine oil
A milky appearance signals coolant contamination, often from a blown head gasket or cracked head.
Plastigage is used to measure:
Answer: Bearing oil clearance
Plastigage is crushed between the journal and bearing to measure oil clearance.
A hydraulic lifter that ticks at idle but quiets at higher RPM most likely has:
Answer: Low or aerated oil supply
Noisy lifters often result from low oil pressure or air in the oil that fills at higher RPM.
When torquing main bearing caps, the technician should:
Answer: Follow the sequence and final spec in stages
Following the specified sequence in stages ensures even clamping and proper crankshaft alignment.