Muscle Mustang & Fast Fords Homepage Muscle Mustangs & Fast Fords

0306MM Slippery19 Z

Another method of controlling oil is with valley vents. Valley vents allow positive crankcase ventilation to the top end of the engine, but they prevent oil from draining back to the pan through the lifter valley. This prevents oil from draining back on the crank and allows it to drain directly into the sump.
Slippery Situation

 Another method of controlling oil is with valley vents. Valley vents allow positive crankcase ventilation to the top end of the engine, but they prevent oil from draining back to the pan through the lifter valley. This prevents oil from draining back on the crank and allows it to drain directly into the sump.  View Related Article

 

Get Adobe Flash player

Car Research Guide