A valve job increases compression, but it also increases ____, which can cause more oil to be sucked past the worn piston rings into the combustion chamber.
A)engine vacuum
B)engine knock
C)oil wash
D)piston slap

Question

Quizplus · Accepted Answer

A valve job can improve engine vacuum, which can cause more oil to be drawn past worn piston rings into the combustion chamber. This results in oil consumption and potentially fouled spark plugs.

A Valve Job Increases Compression, but It Also Increases ____