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Old 06-14-2021, 08:58 AM   #1
demingboy
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Default pcv valve

Well I posted before about my smoking car. How to fix and possibly cheap out on ring job.
Way crazy result from installing pcv kit I got online. Before was smoking out oil fill vent cap and exhaust.
And just like that its gone. I cannot believe the results. Now I can drive around without the dirty looks from folks thinking I am here to cause global warming. Thats a joke by the way.
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Old 06-14-2021, 09:15 AM   #2
51 MERC-CT
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Default Re: pcv valve

And an added advantage is that now that the crankcase is under some vacuum, any oil seepage from crank seal etc. will be reduced or eliminated.
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Old 06-15-2021, 12:44 AM   #3
Phil Gillespie
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Default Re: pcv valve

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Originally Posted by 51 MERC-CT View Post
And an added advantage is that now that the crankcase is under some vacuum, any oil seepage from crank seal etc. will be reduced or eliminated.
Running an 8BA which had a vent and tube from front of inlet manifold.
Have just purchased a pcv valve to fit.
Had noted oil leaks at rear seal area. Will be happy if I get this result!!!
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Old 06-15-2021, 10:57 AM   #4
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Default Re: pcv valve

I have been a firm believer of PCV's on older vehicle for over thirty years, I have had a lot of experience with the Ford 292/312 Y blocks in "56-57 T-Birds and '59-64 F series trucks. I used a PCV system from a '63 292 F100 on my '57 Bird in 1971, the PCV stopped blow-bye/oil leakage from the filler neck, and crankcase vent on the side of the block.
A side effect of the addition of a PCV to my '57 Bird was it made the car California emissions compliant without having to add a bunch of ill conceived emission equipment that California was requiring in the early '70's on pre-smog equipped vehicles.
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Old 06-15-2021, 03:43 PM   #5
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Default Re: pcv valve

I would keep an eye on your plugs . All the smoke that was going out the exhaust is now getting burnt .
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Old 06-15-2021, 03:48 PM   #6
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Default Re: pcv valve

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Where does one install a pvc valve in this case?
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Old 06-15-2021, 04:19 PM   #7
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Default Re: pcv valve

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Where does one install a pvc valve in this case?

There are several ways to do it. Here's a link showing how we installed a HIDDEN PCV Valve on an 8BA with a pre-'49 intake manifold....many pictures, and lots of "PCV" info! Click the link BELOW! DD

https://www.fordbarn.com/forum/showt...a%2C+pcv+valve


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Old 06-15-2021, 06:23 PM   #8
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Default Re: pcv valve

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Where does one install a pvc valve in this case?

https://www.fordbarn.com/forum/showthread.php?t=237933
Posts 4, 5, and 8 show how I did it on my 8ba.
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Old 06-16-2021, 05:47 AM   #9
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Default Re: pcv valve

can you share the type of pcv application you used
I am interested in doing the same for my 47 monarch coupe
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Old 06-16-2021, 10:43 AM   #10
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Default Re: pcv valve

I have found that the engines I have converted to a PCV system from an open crankcase has required leening the carb out a bit. The vapor pulled into the intake does many things: Tends to act as a upper cylinder lube, makes the air/fuel mixture richer, lowers crankcase pressure and thereby minimizes oil leaks, that is a win, win for everything.
I don't care for the PCV being installed in the rear oil fill pipe on an EFV8, a vented cap has to be used for air to be drawn into the system, putting a PCV that close to the air intake will result in the fresh air being drawn into the PCV in lieu of through the block and into the intake. A better location is to drill a hole into the intake manifold air pellum below the throttle plate, use a screw in threaded PCV for a small block that is less than 300 CID. As to where the hose from the PCV is connect to complete the circuit becomes a challenge. An 8BA type engine is simple because of the front crankcase breather pipe which can be replaced with a fitting for the hose.
Several years ago the EFV8 Club published an article about installing a PCV on the bottom side of the intake manifold which is in the valley chamber and requires removing the intake manifold to service the PCV.. Really dumb.
I read an article several years ago that stated that the PCV system eliminated 95% of the pollutants from an engine, everything that has been added an engine since then is to get rid of the remaining 5%.
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Old 06-16-2021, 02:20 PM   #11
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Default Re: pcv valve

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Originally Posted by 46 ford View Post
can you share the type of pcv application you used
I am interested in doing the same for my 47 monarch coupe

The installation that I referred to in my post above is for a 8ba. A 59 series engine is different. It can be done and there are posts either here on the Barn or over on the HAMB that detail the install on a 59 series.
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Old 06-19-2021, 03:56 AM   #12
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Default Re: pcv valve

I put this set up on my last motor witch was a fumey old 1838, it seemed to make the engine run much sweeter and oil stayed cleaner, I blocked off the vent in the sump. I now have fitted it to my 239 Mercury
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Old 06-19-2021, 12:30 PM   #13
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Default Re: pcv valve

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Originally Posted by Rudolph View Post
I put this set up on my last motor witch was a fumey old 1838, it seemed to make the engine run much sweeter and oil stayed cleaner, I blocked off the vent in the sump. I now have fitted it to my 239 Mercury

In case anyone is interested, that manifold in Rudolph's picture in post #12 is an aluminum, Canadian "59A-type" with the number "C11A-6520" cast into it, like the NOS manifold shown below. They're still out there as I have a NOS manifold just like this one. It obviously provides a handy location to tap into the crankcase for a pre-1949 engine. DD







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Old 06-19-2021, 05:06 PM   #14
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Default Re: pcv valve

thank you for the good ideas, v8coopman,Rudolph, and 51504bat. I will be giving this a try
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