pcv retrofit for 217 cid

[47dodgepu211]

Have 47 dodge truck with crankcase vent pipe hanging down that smokes moderately. I want to recirculate gas to carb, somewhere between bottom of carb and manifold. How do I do that. Where do I buy the kit. Auto parts stores are no help because they want vehicle specific info.

Thanks

[martybose]

Vintage Powerwagons has the kit.

Marty

[47dodgepu211]

Thanks, Marty on pcv source:)

[YukonJack]

Vintage Powerwagons has the kit.

Marty

I recently contacted Vintage Power Wagons and was told the kit won't work on my 47 Plymouth because I need a 1/2 inch hole in my intake to run it. I thought I could use the port that the vacuum wipers ran from but they told me it wouldn't work on vacuum. It confused me.

[Guest P15-D24]

VPW had the parts you will need. You have to do a little plumbing work with some pipe to finish.

[Don Coatney]

I recently contacted Vintage Power Wagons and was told the kit won't work on my 47 Plymouth because I need a 1/2 inch hole in my intake to run it. I thought I could use the port that the vacuum wipers ran from but they told me it wouldn't work on vacuum. It confused me.

Having read this post I contacted Vintage Power Wagons to see what is up. My responses to date have not been favorable. They are avoding my questions. I have had good luck dealing with them in the past. Pasted below is my communication to date. I responded once again asking for details of what is included for the seventy five bucks. This time I specifically asked if a replacment for the draft tube and a PCV valve is included. I also asked for a picture of the parts. If I get a response I will post it.

Don, we would send the parts from the passenger side of the engine block

to the intake manifold. These would be good take off used parts, $75

plus shipping.

Hope this helps,

Steve

> I have such a "port". What is included in the kit?

>

> ----- Original Message -----

> From: "Vintage Power Wagons" <dodge@vintagepowerwagons.com>

> To: <doncoatney@comcast.net>

> Sent: Thursday, April 10, 2008 2:18 PM

> Subject: Re: PCV system

>

>

>

>> Don, to be able to convert to this system you would need to have a port

>> on the the intake manifold, about 1/2", for a nipple to go into to vent

>> from the passenger side of the crankcase. If you have this access hole

>> in the intake manifold the cost of the parts for that side of the engine

>> would be $75.

>> Hope this helps,

>> Steve

>>

>>> I have heard that you folks offer a "kit" to upgrade Mopar flathead

>>> engines to positive crankcase ventalation systems. If this is true can

>>> you send me the information? I did not find any information in your

>>> catalog.

>>>

>>> Don Coatney

>>>

>>

>

>

[Normspeed]

I had good luck calling VPW and speaking to the parts guy.

I was thinking about the earlier post about using the vac wiper fitting for PCV. Seems like that might be a little restrictive, and tend to get worse over time with buildup of gunk. Don't most PCVs have a larger size vac hose than that?

[38plymouth]

I'm using the wiper fitting and it has a tone of vacuum there. I think it might be too much because it creates a vacuum leak and a rough idle. Some people recommend different pcv valves but I tried several and it doesn't change it much.

[Normspeed]

Probably asking a dumb question, but those valves are directional, have you tried flipping the valve 180 degrees?

[38plymouth]

I don't see how it could be backwards, one end has a barb type hose end and the other end fit's into the grommet. When there is vacuum it pulls open the valve and creates suction and a vacuum leak.

[Normspeed]

Ahhh I see. I was thinking of an inline valve.

[38plymouth]

I have never seen an inline valve. Wouldn't it make more sense to use a vacuum source above the throttle blade so that vacuum increased when the rpm's rise? That way the valve would be closed or nearly closed at idle and then it would open when driving. It seems like that could eliminate the vacuum leak.

[YukonJack]

I had good luck calling VPW and speaking to the parts guy.

I was thinking about the earlier post about using the vac wiper fitting for PCV. Seems like that might be a little restrictive, and tend to get worse over time with buildup of gunk. Don't most PCVs have a larger size vac hose than that?

If you look in the download section under P15 PCV Installation it is running the pcv to the same port in the manifold that my wipers used before converting to electric wipers. But VPW told me it wouldn't work from there. If it won't work from that port, why does the download picture show it using that location?

[38plymouth]

I believe them when they say it won't work, that's exactly where I put mine and it creates a pretty good vacuum leak. It does make the idle jump around and the exhaust sounds great with duals. But, it shouldn't be like that.

[Don Coatney]

I have never seen an inline valve. Wouldn't it make more sense to use a vacuum source above the throttle blade so that vacuum increased when the rpm's rise? That way the valve would be closed or nearly closed at idle and then it would open when driving. It seems like that could eliminate the vacuum leak.

I recall cars from the 60's and 70's having the PCV line running to the carburetor air cleaner.

[Don Coatney]

This vacuum loss issue came up a few months back. Forum member Dwayne posted information on how he did it on the link below. However it appears his pictures are no longer available. But the thread is worth reading.

http://www430.pair.com/p15d24/mopar_forum/showthread.php?t=7533&highlight=dwayne

[Guest P15-D24]

a regular pvc valve and setting it up like the factory?

[38plymouth]

This vacuum loss issue came up a few months back. Forum member Dwayne posted information on how he did it on the link below. However it appears his pictures are no longer available. But the thread is worth reading.

http://www430.pair.com/p15d24/mopar_forum/showthread.php?t=7533&highlight=dwayne

I read that post before, it still isn't clear to me how he did it. I think he means he drilled a hole in the bottom of his air cleaner and hooked the line from the pcv valve to it. That's what I'm thinking of doinf but I don't really want to drill a hole in my original air cleaner.

[38plymouth]

I think I figured out the vacuum leak problem last night. I feel like a moron for not figuring it out sooner. I was thinking that I needed a pcv valve that had a stiff spring in it so that at idle, when vacuum is highest, the spring would hold the valve closed. I discovered last night it is the opposite. I need a soft spring so that when vacuum is high at idle it sucks the valve in and it closes. Then when you drive and vacuum drops off the the spring pressure pushes the valve open so it sucks crankcase gas. I had it backwards. I'm stopping at napa today and I'm going to buy several with light springs and I'll try those tonight.

[Don Coatney]

I'm stopping at napa today and I'm going to buy several with light springs and I'll try those tonight.

Let us know what valve works the best.