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Do I need to install a PCV valve (1962 223)?

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Do I need to install a PCV valve (1962 223)?

Post #1 by mprima » Thu Sep 07, 2017 11:14 pm

1962 F-100 Custom, original 223 w/ original 3 speed behind her.

I need help. I'm new to these motors and I can't seem to find what I'm looking for on it. I have an oil bath air breather. Never fooled with one before. There is a line that runs form my oil fill cap to the air breather. I assume this is for venting. Can I get rid of this and the oil bath if I install a PCV? What are some of the methods y'all have used to retro fit a PCV valve? Any advise is welcome. Pictures speak a 1000 words to me. I have included two pictures of my motor.

Please excuse me if this seems to be an elementary question. My background is with 66/67/69 Stangs running 289's and 302's as well as LS1's. I just bought this truck and I my learning curve is steep with this motor. There just isn't a lot of information out there on a 223.


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Re: Do I need to install a PCV valve (1962 223)?

Post #2 by manglass » Fri Sep 08, 2017 9:30 pm

I can't really see from the pictures but there should be a draft tube running from the side of the block down below the oil pan in the vicinity of the exhaust pipe. This is what they used before the PCV system which came along around 1963. If the draft tube is there, all you need is a vented oil filler cap. Actually, if the tube to the air cleaner disconnects, the oil cap you have is probably fine. I would pull the draft tube off the block to check the wire mesh filter in there. If cruddy, it can be cleaned and re-used.

Lou Manglass

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Re: Do I need to install a PCV valve (1962 223)?

Post #3 by mprima » Sat Sep 09, 2017 7:55 pm

Thanks. I'll take a closer look when I get home from work.

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Re: Do I need to install a PCV valve (1962 223)?

Post #4 by B RON CO » Sun Sep 10, 2017 9:16 am

Hi, as mentioned, your engine uses the old road draft system to rid the engine of crankcase vapors. The tube is on the rear drivers side of the block. The forward motion create a suction at the tube exit so air is drawn in the valve cover and out the tube. You probably notice an oil drip on the floor, right under the tube. A PCV system much more efficiently remove the contaminants from the crankcase, and reduces or eliminates sludge build up. The issue with a PVC system on a 6 VS an 8, is on an 8 the PCV system draws air into one valve cover, down through the oil pan, and out the other valve cover, and into the intake manifold. On our 6 cylinders, air is drawn in from the front breather, and out the PVC valve on the back of the valve cover. Better then nothing, but not scouring the whole engine like the V8. You can change air filters (I like the vintage look you have now) and just find a push on breather for the oil filler. Old push on caps have a steel wool type filler to somewhat filter the air going into the engine, and your road draft system will work as designed. If you modify the valve cover for a PCV system by drilling a hole and installing a grommet, you will need to baffle it from underneath or you will suck up oil off the top of the valve cover. Good luck
B RON CO. Still workin' on it!

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1966 Ford Bronco - U14 - 170/200 Straight 6
1966 Ford Mustang - 289 V8

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Re: Do I need to install a PCV valve (1962 223)?

Post #5 by unibody madness » Sun Sep 10, 2017 9:39 am

Pvc systems in the f100 first came out in California, they replaced the road draft tube with a canister tube system that came up instead of down, bent towards the front and bolted to the ear on the intake that holds the throttle linkage, then came the valve, short piece of rubber, then a 90* that screwed into the intake under the carb, breather cap is a must jc witnney has them on epay for about eight bucks.
Searched my stash for pics but photobucket fiasco ate them

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Re: Do I need to install a PCV valve (1962 223)?

Post #6 by bubba22349 » Sun Sep 10, 2017 9:16 pm

That's a really clean looking truck! :thumbup:

For sure you don't really have to have a PCV valve. But X3 if it were me I would install a PCV system "a closed type (the very best there is)" I also like those old oil bath air cleaners too. Good luck on your pickup :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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