Author Question: Umbrella-type valve stem seals ________. A) Fit tightly onto the valve guide B) Fit tightly onto ... (Read 267 times)

AEWBW · **on:** Jun 23, 2018

Umbrella-type valve stem seals ________.

A) Fit tightly onto the valve guide
B) Fit tightly onto the valve stem
C) Fit on the valve face to prevent combustion leaks
D) Lock under the valve retainer

Question 2

Dampers (damper springs) are used inside some valve springs to ________.

A) Decrease valve spring pressure B) Retain valve stem seals
C) Prevent valve spring surge D) Keep the valve spring attached to the valve