|12-05-2012 02:12 PM|
Here is a good link to PCV Valve Operation, pages 3-5 in particular.
|12-05-2012 12:23 PM|
|12-05-2012 11:55 AM|
|MouseFink||The PCV valve was introduced on some engines in 1962, and on all vehicles starting in 1963. All your engine may need is a road draft tube to draw pressurized combustion air from the crankcase. All engines have a certain amount of ring blow-by which pressurizes the crankcase and forces oil vapors out of the breathers. Even too much exhaust back-pressure can cause oil vapors to be forced out of the breathers and can saturate the firewall with oil.|
|12-05-2012 11:37 AM|
I have a 62 comet, which we had the engine overhauled on.
I was told we needed a pcv valve... though from my research the pcv valve wasn't introduced til 63....
So do I need to put in a pcv valve? or is it just breathers?