All of the following statements are true EXCEPT:
A) the intake valve must open before TDC, when the piston starts down on the intake stroke.
B) the intake valve stays open long after BDC into the compression stroke.
C) the exhaust valve remains open past TDC.
D) non-freewheeling engines often have a decal on the valve cover stating that the belt must be changed at least every 10,000 miles.

Question

Quizplus · Accepted Answer

The statement in D is incorrect because non-freewheeling engines typically require timing belt changes at intervals much longer than 10,000 miles, often between 60,000 to 100,000 miles, depending on the manufacturer's recommendation. The other statements accurately describe aspects of engine valve timing and operation.

All of the Following Statements Are True EXCEPT