tysouthwick Posted June 18, 2010 Author Report Share Posted June 18, 2010 If I welded the road draft to the exhaust so the crankcase gases left with the exhaust would that help in any way making the engine last longer or would it some how get the advantages of a pcv? Quote Link to comment Share on other sites More sharing options...
Dave72dt Posted June 18, 2010 Report Share Posted June 18, 2010 If I welded the road draft to the exhaust so the crankcase gases left with the exhaust would that help in any way making the engine last longer or would it some how get the advantages of a pcv? I think you have to build in a check valve so exhaust pressure doesn't back up into the crankcase. Quote Link to comment Share on other sites More sharing options...
tysouthwick Posted June 18, 2010 Author Report Share Posted June 18, 2010 how would i do that? Quote Link to comment Share on other sites More sharing options...
aero3113 Posted June 18, 2010 Report Share Posted June 18, 2010 thanks aero3113, I take it that you've converted to a paper filter element?, I want to do that as well. my intake is not tapped at the same spot as yours. mine is on the side/just in front of the carb. Thanks for going first, after seeing yours I feel more comfortable tapping into my wipers. I still use the oil bath as a filter. Quote Link to comment Share on other sites More sharing options...
1949dakota Posted June 18, 2010 Report Share Posted June 18, 2010 aero3113 On your second pic you have a copper line going into the bottom of your carb. What does that go to??? that fitting on my carb looks to have been brazed shut!! is that vacuum? Quote Link to comment Share on other sites More sharing options...
HanksB3B Posted June 18, 2010 Report Share Posted June 18, 2010 Hope this helps Hank Quote Link to comment Share on other sites More sharing options...
Dave72dt Posted June 18, 2010 Report Share Posted June 18, 2010 how would i do that? You'd be getting into emission systems such as those designed in the the 70's-90's. Read complicated, technical, expensive. Put a simple PCV on it. You can make it look good, like it was supposed to be there with a careful choice of pieces, material and contruction. Quote Link to comment Share on other sites More sharing options...
tysouthwick Posted June 19, 2010 Author Report Share Posted June 19, 2010 Hope this helps Hank Your pic makes it seem much easier, I will just invest in a simple pcv:cool: Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted June 20, 2010 Report Share Posted June 20, 2010 they are like a diamond collar for your dog. if it makes you feel good, then buy it. Hay! That is my line! I have used that thought many times on this forum the samy way you used it. Good job! As for definitive proof, look into what military issue Power Wagons did on their flathead engines. All have a PCV system to keep moisture out of the engine from fording waterways. I dont think all military power wagons had a PCV system. If I recall from the 60's in Vietnam when I was an Army 63B20 (wheeled vehicle mechanic) there was a "fording" kit that could be installed on power wagons that may be required to ford waterways. But not all power wagons had this kit. Its no diamond studded collar in my book. The oil remains clear in appearance much longer, and a working PCV system has a scavenging effect for the crankcase that I believe is much more efficient and cleaner than the draft tube using existing vacuum. I cannot believe that Detroit would go to additional costs of incorporating this on vehicles if it didn't have a positive effect. Just my 2 cents of having been there and done that. Mike One reason the oil looks clear today is the lack of lead in the gasolene used today. The lead that was part of the gasolene formula in the 50's and later caused most of the sludge you find in engines that have not been disassembled until today. I believe you are correct in saying the PVC system offers much better scavenging of the crankcase fumes than the draft tube does. However Detroit did not care about a PCV system until the government started looking at vehicle emissions and made mandates to clean up the act. okay, heres an idea. a pcv system is operated by making a vacuum in the crankcase, so with the radiator fan going and the filter "top hat" faced the right direction, wouldnt that create a venturi effect (how a carburator pulls fuel) in the filter housing and crankcase, therefore making a similar effect to a pcv that is just much simpler. it may not be quite as effective as far as pressure, but the volume is much greater. does anybody else see what i mean or am i just talking at myself? (no, im not against the pcv setup, but im just looking at both ways, both as somebody who likes fixing things and as a professional procrastinator) I understand professional procrastinator:D But I dont think the radiator fan can produce enough flow for the draft tube to work when the vehicle is not moving. the first day I bought my truck and drove it home, the girl waiting for the bus was covered in a black cloud of smoke and was never to be seen or heard from again. That alone is a good reason to install a PCV system. My car with a fresh engine has developed the old car smell that we guys all love but our ladies do not. I also keep a hunk of cardboard under my car to catch the draft tube drips. Installing a PVC system is on my to-do list to make my car more lady frendly. If I welded the road draft to the exhaust so the crankcase gases left with the exhaust would that help in any way making the engine last longer or would it some how get the advantages of a pcv? Go for it but I dont want to be around when the exhaust fire backs up into the crankcase and the big boom happens... Quote Link to comment Share on other sites More sharing options...
41/53dodges Posted June 21, 2010 Report Share Posted June 21, 2010 Hay! That is my line! I have used that thought many times on this forum the samy way you used it. Good job! i learn from the best! Quote Link to comment Share on other sites More sharing options...
HanksB3B Posted June 21, 2010 Report Share Posted June 21, 2010 (edited) " That alone is a good reason to install a PCV system. My car with a fresh engine has developed the old car smell that we guys all love but our ladies do not. I also keep a hunk of cardboard under my car to catch the draft tube drips. Installing a PVC system is on my to-do list to make my car more lady frendly". The first day I bought my truck and drove it home, the girl waiting for the bus was covered in a black cloud of smoke and was never to be seen or heard from again. I had a PVC system at that time. I took it off. On the fence, Hank Edited June 21, 2010 by HanksB3B Quote Link to comment Share on other sites More sharing options...
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