TEST YOUR HEAD KNOWLEDGE.

QUESTION (1) Name the 3 specific types of cylinder heads?
ANSWER

QUESTION (2) Under what conditions do exhaust valves normally operate?
And why do exhaust valves burn more often than inlet valves?
ANSWER

QUESTION (3) Why do exhaust valves normally have wider tappet clearances than inlet valves?
ANSWER

QUESTION (4) Why do inlet valves generally have larger heads than exhaust valves?
ANSWER

QUESTION (5) What modifications have to be carried out on the average cast-iron cylinder head when converting to LPG?
ANSWER

QUESTION (6) What can valve guide wear cause?
ANSWER

QUESTION (7) Why is valve spring tension important?
ANSWER

QUESTION (8) Why is it important to know the nominal cylinder head thickness?
ANSWER

QUESTION (9) What is meant by " straightening a cylinder head"?
ANSWER

QUESTION (10) Why do bent OHC cylinder heads have to be straightened before they are surface ground?
ANSWER

QUESTION (11) What does sencro-seating describe?
ANSWER

QUESTION (12) What is a cylinder head vacuum test?
ANSWER

QUESTION (13) What is a cylinder head crack test?
ANSWER

QUESTION (14) What is a cylinder head pressure test?
ANSWER

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