This is in a friends sandcar its a 2330 vw motor. He had the motor rebuilt built at a guys shop in temecula & ever since then when the motor is cold & you fire it up it will blow the oil filter out, It's has a remote resevoir oil filter housing #3500 fram oil filter with 10-30 motor oil. this has happened about 5 time now. When the engine & oil is warm it does not do it, & I've already looked at the oil pressure relief valve it looks good I've checked all the vent line (like one off of valve covers & to vent filters all are clear) I'm lost where do I we go from here? Thanks for the help.

You can get a lighter relief spring for the bypass. I had the same problem with one of mine.

How much oil pressure when cold, might need a different valve

Too much oil pressure when cold makes short life of Fram filters.

And I'd say ditch the Fram.....Do a search others are having the same problem....
I too years back went thru 2 frams than switched to a Mann #W719/5 filter for the VW rabbit diesel.

The rabbit diesel filters hold more pressure (90) lbs...It's all I use anymore on remote filter aplications.

If U have a single by-pass engine case U pretty much have to live with it and just put a better oil filter on it. Wix make the best HP oil filter out there, they have a thicker can to take more presure and are more puncher resistant. They can be bought at most parts stores, make sure to ask them who makes there filters. I know that NAPA/Carquest both are made by Wix and make sure U ask for the HP series filter. Most after market remote filter housings use eather GM or Ford filters. The NAPA no's are 1061R for GM / 1515R for ford. The other thing to check is to see if U have a double by-pass engine case, These cases have a bypass in the front and one in the rear if u only checked the one then the other could be stuck. its back by the flywheel and looks the same as the other one but its up in there a ways and is hard to see. Good luck.

Yes, we put in a much lighter spring in. it worked good for a couple of start ups then it blew again. I will have him try the HD filter & see what happens. Thanks for the feed back

Have you tried the Fram HP1?

Use hp1 hp4 or k&n hp filter. Cold oil ,too lite duty of a filter. DON"T COLD REV!!

Use the WIX HP filter the FRAMS and K&Ns are junk compared to the WIX. Believe me I've tested them all. And dont even think about an AC filter if your running exotic fuels. Different kinds of fuels affect the glue used to hold the filters togather. I know your going to say whats fuel doing in the oil. Believe me its in there. I could go on forever about what happens to oil and the engine itself from cold start up till hot shut down. But the WIX filters are the best paper element filter on the market period. All the cup teams eather run the WIX filter or the run a pleated stainless type filter like the peterson fluid systems ones that are cleanable and can be looked at at any time.

or if he has the $$$ pony up for a jaycee or a Geers aluminum filter

I have had a Wix filter leak Blu, that is why I don't use em. Seaped out the rolled edge, twice!!

Baldwin makes good filter for this problem too. Thats what i used but i dont remeber the number, you could probably just run a cross check against the other brand filters.

aint the filter, something else is wrong to build that much pressure. I ran frams forever with 16:1 compression and straight 50 weight oil and never blew a filter in 30 years. look for something else like bypass problem, hose clogged, spring problem, oil pump problem etc. look at a diagram of the oiling system for a vw.

Filter study

I used the Fram hp1(200psi operating pressure and 500 burst) or equivalent hyd filter which can handle the excess volume of the large 30mm pumps. Or change to a smaller pump.

Which Wix filter? they make 3 different series of filters. I bet it wasnt one of there hp series. I've ran thousands of them and I dont remember ever have one leak. We build alum 410 ci sprintcar engines and these are the prefered filter. If somebody wants to run something elso we make them supply one for us to dyno with so we can set the oil presure on there engine because different filters will affect the oil presure. Same with different brands of oils.

It was whatever was the crossover to the HP1. Now I am switching to the geers when the new car is finished.

Pretty common with high volume pumps.What size pump is he using?If its a 30mm drop to a 26mm pump.Jaycee makes a good filter adpator with a built in bypass also.An oil temp gauge can help out so he knows when its warm enough to rev it.

I use a 26mm pump in mine and havent had a problem the motor i built for my uncles buggy has a 30mm pump he has blown his filter out twice both at the o ring.(told him go wit ha 26mm but he didnt want to spend 30 bucks).

I get about 55-60 pounds at most if i rev it cold and about 55 when warm at most.But at idle when warm i get about 18psi 25-30 cold.

So what oil pressure are you seeing on start-up of a cold engine?

What weight oil is used?

Seen it, Lived it. Get a better filter and NO NOT rev the engine when it is cold.

This same thing happened to me on my last car. It was a 1915 Volkswagen with a full flow oil system. I went to K & N filters and cranked it on good and hard... As stated above, no cold revs, and I was fine.

i've had the same problem too. as already stated, get an hp1 and don't cold rev. i've heard you can build as much as 100psi if you rev on start up with cold oil.

I went thru the same problem probabbly 10 times you need to upgrade your filter to at least a hp1 or wix or baldwin I think the problem is on a full flow case that the oil pressure relif is after the filter and you oil pressure at the filter cold is close to 200 that is just what I have heard I dont know to much about vw engines but it makes since if the oil pressure regulater and relif are after the filter

My turbo 2332 VW does the same thing. I use Kendall 30.There is no filter available that will not blow when the oil is cold. Just warm the engine for 5 minutes then go.