Crankcase Ventilation

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Re: Crankcase Ventilation

by Jose » Sat Nov 11, 2017 11:16 pm

do you mean a PCV "valve" like modern engines?

Where is it located?

The XK engine vents from the engine breather to the air filter housing, an early "pcv" system.

Re: Crankcase Ventilation

by NigelW » Mon Nov 06, 2017 6:21 pm

Chris, my car '64 model doesn't have the California markings but I have stack pipes on the carbs with the crankcase venting out to the road via a tube. I have a catch tank waiting to be fitted when I get around to it.

Crankcase Ventilation

by Chris Dixon » Fri Nov 03, 2017 11:52 am

My car has a PCV stamped to the effect that it meets California emissions standards for 1963. I'm told all cars had that regardless of market, but I wonder if there is any benefit in removing it, or any potential harm in keeping it. As far as I can tell the PCV has a valve in it that reacts to crankcase vacuum, to vent oil fumes to the air cleaner housing. Unless they can stick shut and stop the crankcase from ventilating, I don't see any reason to remove it from a healthy engine, but if your car has pancake air filters is the pipe just venting to the road, or a catch tank?

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