 Oil pressure relief valve woes? |
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| ahdoman |
  May 4 2007, 03:26 PM
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It's phonetic...Ah-D-O-Man (Audioman)  Group: Members Posts: 667 Joined: 7-November 05 From: Santa Clarita, Ca. Member No.: 5,084 Region Association: Southern California  |
OK, here's the symptoms...
extremely high oil pressure readings when cold (about 120psi) and still high when up to temp (about 90psi) while driving. I know the gauge and sender are working because the oil PSI will vary with engine RPM (about 30 PSI). Engine details... 2.0 carbed w/ hydraulic lifters, Royal Purple 10/40 and Mobil 1 filter. I assume the problem lies in the oil pressure regulators? Any other ideas before I begin surgery? So, here are the questions... 1) Do I need to drain the oil before I remove the pressure regulators? 2) Do I need to remove both regulator assemblies (Haynes reference; 15.4 & 15.5 page 29) and if so what do I replace? 3) On page 20, section 6 of the Haynes manual point #2 says "oil goes to a cooler which again has a bypass valve" - Is there another valve actually in the cooler? Extra bonus question for hydraulic lifter experts... On the later bus cases I remember hearing that they eliminated the pressure valve on the right side of the block? My understanding was to provide greater oil flow to the lifters. Is this true and if so do I actually need that valve in place or did I completely get that wrong? |
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| TravisNeff |
May 4 2007, 03:58 PM
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914 Guru Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region 
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Are you running a stock, or aftermarket oil pump? Could it be that your sender does not match the gauge? The top of the sender will tell you the pressure range that your gauge should have.
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| ahdoman |
May 4 2007, 04:17 PM
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#3
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It's phonetic...Ah-D-O-Man (Audioman) Group: Members Posts: 667 Joined: 7-November 05 From: Santa Clarita, Ca. Member No.: 5,084 Region Association: Southern California |
QUOTE(Travis Neff @ May 4 2007, 02:58 PM)  Are you running a stock, or aftermarket oil pump? Could it be that your sender does not match the gauge? The top of the sender will tell you the pressure range that your gauge should have. It's the same sender and gauge that has always been in the car and always read correctly. According to the local buggy shop here when the senders go bad they usually go wide open. You don't continue to get pressure readings. |
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Posts in this topic
ahdoman Oil pressure relief valve woes? May 4 2007, 03:26 PM
Aaron Cox is it a vdo dual sender? they come in both 80 and ... May 4 2007, 05:35 PM
ahdoman
is it a vdo dual sender? they come in both 80 and... May 4 2007, 05:48 PM Aaron Cox thats not your problem. thats so it doesnt blow th... May 4 2007, 05:50 PM ahdoman
thats not your problem. thats so it doesnt blow t... May 4 2007, 05:57 PM jk76.914 I had trouble with the drag link socket. My socke... May 4 2007, 06:01 PM jk76.914 Regarding the hydro lifters- I also have them. I... May 4 2007, 06:17 PM ahdoman Jim - You've been PM'd. May 4 2007, 06:39 PM ahdoman OK, got the one off the bottom of the engine. Is t... May 4 2007, 10:16 PM craig downs No O ring. Looks like you have one of the higher p... May 4 2007, 11:13 PM Jake Raby Replace the piston with a stock unit and the issue... May 4 2007, 11:22 PM |
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