ASE Engine Repair 2

Question 1

A cylinder head warped beyond service limits across its deck surface should be:

Accepted Answer

Resurfaced or replaced if beyond limit

Answer

A warped head must be machined flat within spec or replaced to ensure proper gasket sealing.

Question 2

Excessive blue smoke from the exhaust most commonly indicates:

Accepted Answer

Oil burning past rings or valve seals

Answer

Blue smoke means oil is entering the combustion chamber, usually past worn rings or valve seals.

Question 3

A technician measures cylinder bore taper by comparing diameter at the:

Accepted Answer

Top and bottom of ring travel

Answer

Taper is found by measuring the difference between the top and bottom of the ring travel area.

Question 4

Milky brown oil on the dipstick usually indicates:

Accepted Answer

Coolant mixing with engine oil

Answer

A milky appearance signals coolant contamination, often from a blown head gasket or cracked head.

Question 5

Plastigage is used to measure:

Accepted Answer

Bearing oil clearance

Answer

Plastigage is crushed between the journal and bearing to measure oil clearance.

ASE Practice Test