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upgrading to new oil pressure valve

I have an 86 951 and I want to upgrade to the new style OPRV. When I tried to put it in it wouldn't go far enough for the threads to catch. Anyone ever experience this? Got a solution? Quick response since car is apart in friend's driveway!

Thanks
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Old 09-04-2004, 11:54 AM
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bump...nobody?
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'08 BMW e90 335i 6MT stock [aka 'take two']
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'86 951 (K&N Cone, Welt Chips, Tial, Zeitronix, P&P O-ring PH Head, WFHG, AFPR) [in storage]
Old 09-04-2004, 07:38 PM
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I've been looking for this same valve on mine. I don't even know if mine has one 86 n/a. No help for me either, yet. I hate being a newbie.
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Old 09-05-2004, 10:55 AM
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probably just the holiday .
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Old 09-05-2004, 03:26 PM
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ALL the 924/944's have a OPRV, its near the oil cooler on the P/S on the engine, I havent been there for a while but I believe it looks like a big bolt. If it doesnt fit then call pelican and see if they can help you, sounds like you might have the wrong one
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Old 09-05-2004, 10:15 PM
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its the 24mm on the bottom front of the oil cooler. The housing might be out of alignment slightly, not allowing the newer valve to slide in.
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Old 09-06-2004, 04:24 AM
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Not sure if this is the answer, however, sometime in the latter 80's, Porsche changed the fitiment of the Oil Cooler Housing...not sure if this is the issue (i.e. you have the one for the new style housing?) Anyway, good luck with it...
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Old 09-06-2004, 05:01 PM
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There is an alignment tool that is recommended for installation. Check the Shop Manual section of Clarks garage for some info...

http://www.clarks-garage.com

As an alternative, you can loosen the Oil Cooler housing before you try to insert the OPRV. This will allow the housing and valve to move around a little so you can line them up. Be careful though, you do not want to damage the o-ring on the valve, or have it come off inside the housing.

Make sure to lubricate the OPRV, o-ring, and inner walls of the Oil Cooler housing to ease assembly.

Good luck.
JM
Old 09-07-2004, 04:35 AM
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I did not realize that there were two different styles. Bummer. Where is the part number stamped on the OPRV? I am at work right now but will look at it when I get home.
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Old 09-07-2004, 09:18 AM
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I had mine out this weekend replacing the worn o-rings, and don't remember seeing any part # on it.
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Old 09-07-2004, 03:39 PM
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I don't recall finding a part number on mine when I had it out either, but I suppose I could have missed it.

You are running into one of two problems.
1) Wrong OPRV, there are 2 different length OPRV's, if yours requires the short, and you have the long, guess what....
2) Alignment. Did you just remove the old OPRV, and insert the new one?
If you want to try loosening the housing to insert the OPRV, you will probably have to re-seal the oil cooler housing.

There are a couple tips for re-installation.
If you have the oil cooler housing removed, when you re-install it, leave all 4 bolts about 2 turns from tight.
Install the OPRV into the housing, this will take some coaxing. Remember to oil the valve, and wiggle the housing while you insert/tighten the OPRV. If it's the 1 piece valve, as long as it installs, it is in correctly.
After the OPRV is installed, tighten down the housing.

If you don't have the oil cooler housing removed, you're in for a good fight.

DON'T FORCE IT. If you score the hole it goes into, you'll have oil pressure troubles later. Whether significant or not, I can't say, but be careful anyways.
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Old 09-08-2004, 07:46 AM
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The engine the OPRV came out of was a 87, I have an 86. Hence no fit. Damn.
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'08 BMW e90 335i 6MT stock [aka 'take two']
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'86 951 (K&N Cone, Welt Chips, Tial, Zeitronix, P&P O-ring PH Head, WFHG, AFPR) [in storage]
Old 09-08-2004, 07:57 AM
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Am I going to run into the same problem with the pressure sending unit? Are they universal through the years?
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'08 BMW e90 335i 6MT stock [aka 'take two']
'12 Dodge Durango [family hauler]
'86 951 (K&N Cone, Welt Chips, Tial, Zeitronix, P&P O-ring PH Head, WFHG, AFPR) [in storage]
Old 09-08-2004, 08:00 AM
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Quote:
Originally posted by chapstic2001
Am I going to run into the same problem with the pressure sending unit? Are they universal through the years?
I'm rather sure they are all the same.
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77 924 - Sold
Old 09-08-2004, 08:24 AM
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same on all year 944's, I think it's the same on the 968 and 924 as well... IIRC, it bears a 928 P/N, so it probably fits some 928's somewhere.
No worries on that one.

Tough luck on the OPRV.
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Old 09-08-2004, 12:32 PM
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The OPRV was a freebie so no real loss. Just the let down that I thought I had an updated style OPRV. You win some you lose some.
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'08 BMW e90 335i 6MT stock [aka 'take two']
'12 Dodge Durango [family hauler]
'86 951 (K&N Cone, Welt Chips, Tial, Zeitronix, P&P O-ring PH Head, WFHG, AFPR) [in storage]
Old 09-08-2004, 12:36 PM
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