65 PCV valve

[John C.]

I searched the archives and had no luck. Trying to sort out the few things that are incorrect on my 65 300/327. Long Island's site doesn't show a PCV valve for this engine, only a restrictor at the rear of the carter carb. Does the 300/327 not have a PCV valve ?
JC

[Jim D.]

Re: 65 PCV valve

That is correct.

[Gene M.]

Re: 65 PCV valve

The fitting at the rear base of the carb has a small hole in it that "meters the vacuum leak" causing a small negative pressure to the crank case.

[John C.]

Re: 65 PCV valve

One would think that would be enough to cause a vacuum leak, but I guess not since there are plenty of them out there that run fine. Thx Guys !
JC

[Timothy B.]

Re: 65 PCV valve

John,

It is a vacuum leak, it's just calibrated in that the carburetor metering A/F ratio takes that into account. FWIW, are you having problems with the AFB idle.

[John C.]

Re: 65 PCV valve

Not really. But, even though most of the car is original unrestored, it did have an incorrect carb. I've got it torn down, so-to-speak ready for a dewitt's 941, manifold with new fresh air tube and a few other new goodies. I'll actually get the restored 3721 AFB (correctly dated ) back from Carb Junky's today and will be able to put it all back together. If I do have any issues I'll sure 'nuff give you a shout.
Thx for the assistance,
JC