Quote:
Originally Posted by Old Mechanic
PCV valves were required beginning in 1963 If memory serves me right. Dang if those blow by gasses were so explosive, why have I not seen any crankcase explosions. I guess the manufacturers must post a no smoking sign next to the dipstick.
The one in the car not the one in this thread  .
regards
Mech |
especially since any unburnt fuel would mix with the cloud of crank case oil mist that happens when engine is running .