Fuel System: Install PCV system in 1955 259

[gormleyjack]

Has anyone ever installed a PCV system in a V8 Studebaker? If so, does it help.

[JoeHall]

Not real sure it's needed, but I've installed a PCV in several 56 Golden Hawks. Just remove the road draft tube; stuff a rubber shock bushing in the pipe nub; screw a PCV into the hole in the bushing, then plumb it into the carb base. But here's the kicker, if you try to plump it into the stock carb, you'll need to create a nipple. No matter how you create a nipple, the idle will be too high, and you cannot slow it down. So the easiest way is to get a later carb from a Stude that originally had a PCV, around late 1961 and later. lot of trouble for something that was not really broken in the first place. But I have done it to every 56J I ever owned.

[bensherb]

Does it help? That would depend on what your issues are. Installing one is easy. Easiest way would be to use a '64 valley cover and screw one in. Otherwise you can make a cover with a bung to replace the road draft tube, or just cap it and add a bung to the valley cover. Or cap off the road draft tube and add a bung to the oil filler tube....etc. There are many ways to go about it. On my '62, I have a hose tapped into where the oil filler tube would be on earlier models, as well as one in the valley cover. They "T" together and go to a PVC valve that's threaded into the intake manifold. I also have a breather tube from each valve cover each going to a filter inside the air filter assembly; they work together with the PCV valve as a system. It works great.

[StudeRich]

There is nothing helpful for what you need on a '55 here on this String.

Here is what you need on this Prior String in Post 4, 6, 7, and 8, please ignore Post #2 it is a CUSTOM Home brewed Concoction, not a Factory Engineered PCV System.

https://forum.studebakerdriversclub....rect-pcv-valve

[blackhawk]

Does it help? That would depend on what your issues are.

I agree. It does depend on the situation. For me, the old downdraft tube system was simply unacceptable and I would never go back. However, I understand that in the world we have today where most Studebaker owners drive on paved roads and do not use their Studebakers during the winter, my experiences are irrelevant. In the late 60s and early 70s, I had two incidents where the downdraft tube became plugged, resulting in excessive crankcase pressure that blew most of the engine oil out of the filler pipe. The first time it happened, I was driving through frost heaves and mud during spring breakup and mud plugged the downdraft tube. The second time, water froze in the downdraft tube plugging it. I was driving 70 mph in -60℉ weather when it happened. That was the last straw. Once I had the car in a warm garage and cleaned up the mess, I got rid of the downdraft tube. Okay, I admit this is not a good argument for converting to PCV today, but it is an opportunity to reminisce about the good old days. Cheers. - Dale

[thehotrodder]

I am curious on a slightly different approach. I wonder how well it would work to Y in a line from crankcase maybe valley cover to an exhaust pipe use the exhaust flow to create a vacuum to evacuate the crankcase. I see race engines do this quite often. I assume because race engines spend most of their lives at wide open throttle and A lot of times under boost. I am nervous to run crankcase gasses back through intake manifold for fear of bunking up the backside of the valves and filling the intake manifold with crud over time.

[bezhawk]

Sure it helps. You wont smell the engine fumes as much with a PCV system. That alone is enough to justify the installation.

[JoeHall]

There is nothing helpful for what you need on a '55 here on this String.

Here is what you need on this Prior String in Post 4, 6, 7, and 8, please ignore Post #2 it is a CUSTOM Home brewed Concoction, not a Factory Engineered PCV System.

https://forum.studebakerdriversclub....rect-pcv-valve

Rich,
You trash talk my method, then direct the OP to a thread that only provides other versions of a, "CUSTOM Home brewed Concoction, not Factory Engineered PCV System". The 55 Stude was never factory engineered for PCV, nor was the jetting in the carb, nor does its carb even have a nipple to plug a PCV/hose into. You support installing a later valley cover, or in-line PCV, yada, yada, as, "factory engineered" in the 55. Anything anyone comes up with meets the same disgusting description you gave my method.
What a joke

[StudeRich]

The point was mostly just to show the Man the method he needs to use to connect to the Crankcase and there are Great Pictures someone posted there of them.
I never said that string would answer ALL questions about the whole System, only a start to the project. Also never said anything about "Your System". Post #2 is on the other String.

Sorry if that offended you, Hmm 7:45 AM, have you had your first cup of coffee by then?

[JoeHall]

Does it help? That would depend on what your issues are. Installing one is easy. Easiest way would be to use a '64 valley cover and screw one in. Otherwise you can make a cover with a bung to replace the road draft tube, or just cap it and add a bung to the valley cover. Or cap off the road draft tube and add a bung to the oil filler tube....etc. There are many ways to go about it. On my '62, I have a hose tapped into where the oil filler tube would be on earlier models, as well as one in the valley cover. They "T" together and go to a PVC valve that's threaded into the intake manifold. I also have a breather tube from each valve cover each going to a filter inside the air filter assembly; they work together with the PCV valve as a system. It works great.

I like that you set connected it to both ends of the motor, but agree with Jack the location in the intake is too close to #5 and 7 ports, and will likely cause carbon problems there eventually. Another way is to use a thick adapter plate under the carb, drilled to accept a PCV connector, if using the OEM carb. But then gonna have to re-jet the OEM carb. Probably easiest to just use a later carb, or aftermarket carb with PCV connection. As some others have pointed out here, most folks don't drive their Studes anywhere near enough for things like a road draft tube, or partial flow oil filter to be an issue. So depending on the OP's plans for the car, it may be a waste of time.

[JoeHall]

The point was mostly just to show the Man the method he needs to use to connect to the Crankcase and there are Great Pictures someone posted there of them.
I never said that string would answer ALL questions about the whole System, only a start to the project. Also never said anything about "Your System". Post #2 is on the other String.

Sorry if that offended you, Hmm 7:45 AM, have you had your first cup of coffee by then?

No problem Rich,
But if not me, then you were pretty harsh on Bensherb, if it was his post you were referring to. As mentioned, no matter how a PCV is installed on the 55, it is never gonna be factory engineered. Maybe duplicated though. Just another reason to never raise the hood at an SDC meet. To me, whatever keeps'ed rolling is most important, and people have no business under my hood anyway. LOL