STUCK oil pressure relief valve?

[mark tucker]

so witch spring? the cooler relief or the oil pressure relief? is the cooler partly cloged?

[udidwht]

[splitmaster]

Think it is sorted no change the oil to 5w30 and put a standed spring out of a old engine oil pressure is 45 cold and 20 psi hot

[mark tucker]

might need thinner oil,might have one of the booster valves/springs instaled,I dont use the stiff booster spring in the cooler relief, just the oe spring.somebody may of added something to the pressure relief spring too, I just use the booster spring there. as for oil bypassing the cooler or being blocked off the cooler is never blocked off unless you remove it.it still gets oil flow& still gets oil pressure the rest of the engine gets when the bypass/cooler relief valve is open. but the oil now has two paths to travel and is not restricted by the oil cooler&small gally leading to it.

[[email protected]]

I still haven't seen what oil you are using.... If it's anything thicker than 10-30 that is part of your problem.
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[Quokka42]

The Berg site is a little difficult to navigate, but it is certainly there. The valve is set to open at 90lbs, but it is adjustable. I would still listen to Berg's old advice about using it as a bandaid, though. Blowing oil filter seals out and splitting coolers suggest serious problems - fitting an appropriate sized pump and using the right oil are a start, but you still should investigate in case there is another problem.
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[wythac]

I've had mine so long I don't recall when the pressure relief kicked in...I would throw out a WAG that it is somewhere around 50-60lbs, keeping in mind it is "upstream" of two other relief valves in a dual relief case.

One other thing to note, the GB cover doesn't work with other aftermarket pumps. Don't recall if it works with a stock pump, didn't matter to me since I bought the matching Berg pump anyway.

[Bobthepilotguy]

It's funny that I came across a recent thread on this topic. I have a turbo 2332 with a full flow filter and the 26mm pump that everyone it touting and it has ruptured the oil cooler (doghouse style) twice now. Maybe I have a stuck relief valve or other obstruction somewhere but I've yet to diagnose it. I'm in the middle of taking the cooler, oil pump cover, and pressure relief valves off right now. Looking into one of those berg pump covers but there are a couple different ones and i couldn't figure out which one to get. Anyone have an idea about that? I'd be curious to know how much pressure the pump cover has to see before the built in relief valve opens. To be as thorough as berg's stuff is it's funny there are no specifics on those pump covers. Maybe I'm missing it on the website? Hope I didn't "hijack" the thread I'm not super saavy on forum etiquette....
Good luck to alphaskate in getting the engine back up and running again!

[flyboat]

The pump is too big if you don't have major oil flow mods, like the Hoover mods. Get the 26mm as suggested and replace the relief pistons and springs

The larger pump will bypass the cooler if there isn't pressure relief elsewhere other than what VW set up.

I run the Wix 51515 filter because it is stronger.
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[wythac]

I suggest getting a Berg pressure relief oil pump cover. Had the same problem with an engine once, blew up filters, blew the seals out of the oil cooler(a real bitch in a bus). After that I bought the GB cover for the GB pump and never had an issue since. Use that configuration on any motor I build now.

I would add my .02 on the 30mm vs. 26mm...you don't need the bigger pump, and running one is likely contributing to your problems.

Looks like you have another thread on this same issue, I'd stick with posting on one or the other.

[mark tucker]

who built it?looks great,pull relief plugs seperly&see what you have,do they both flow oil oit? has the front relief had a screw in gally plug instaled where the relief gally is drilled?

[splitmaster]

[splitmaster]

Checked both prv valves there ok there is a gene berg oil pump fitted not a melling at first it was blowing the oil fillet seal so I fitted a hp1 now this time it has not blown the seals in the oil cooler it split open the oil cooler .
Any one got any ideas

[splitmaster]

Hello any one can help got same thing blowing oil seal out so fitted fram hp1 now it has blown the seals out of the oil cooler oil every where . My engine is new 2007 cc with melling pump thanks

[A E Numan]

The mid size Mann filter is W 719/5. There is a smaller one, and a bigger one, but I don't know the numbers for them.

[VanderBus]

[propflux01]

Get a different Filter than the Fram, Get a Gene Berg cover, and use a thinner oil.
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[Eric_S]

In the latest HVWs on page 83, the pic in the lower left has an arrow pointing to the pressure relief hole that needs to be enlarged.
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Eric_S

What are all these extra parts?

[Eric_S]

The real problem is that the bleed off hole that bypasses back into the case is about 3/16" dia. That's fine for a stock oil pump turning at stock RPMs but get a big pump and spin it 50% faster and there is no possible way that tiny hole can bypass that much volume. The case has to be open to drill it out so that might not be the answer for you, but for those of you still building...
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Eric_S

What are all these extra parts?

[Jimmy111]

Just change to the Wix. The Fram will blow every time . If you got to just remove the screw that holds the spring and piston in and see if you can remove the piston. If it moves it is ok.
If you have an extra spring. Just cut a 1/4 inch off your spring and reinstall it. It will reduce the pressure. Just remember to put the full length one back after.