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> Low oil pressure - oil pump a workable fix?
Tdskip
post Apr 18 2019, 02:21 PM
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Yeah, yeah, I know. It's not likely the oil pump but humor me.

The red aka turbo car is showing low oil pressure. It has a front mounted oil cooler and some sort of big bore engine. Oil level is full cold and when hot.

When cold my oil pressure is good, when hot it isn't.

I'm under 10 PSI per 1000 RPM hot.

I don't have a history on the engine.

I am running 20w50, Mahle filter.

I have not put a mechanical gauge on it but it is already running a retrofitted VDO oil pressure gauge.

Goal is to get another summer out of driving it if I can.

I supposed it wouldn't hurt to try a mechanical gauge and heavier weight oil, but is there a chance it is the oil pump rather than bearings?
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Tdskip   Low oil pressure - oil pump a workable fix?   Apr 18 2019, 02:21 PM
crash914   no, its the bearings. blew up my motor with the s...   Apr 18 2019, 02:23 PM
dr914@autoatlanta.com   I agree would be the bearings, probably rod bearin...   Apr 18 2019, 02:31 PM
Tdskip   no, its the bearings. blew up my motor with the ...   Apr 18 2019, 02:34 PM
sixnotfour   pull the sump screen and run your finger around in...   Apr 18 2019, 02:40 PM
Tdskip   If it is the bearings, which probably is the case,...   Apr 18 2019, 02:45 PM
kahluver   If it is the bearings, which probably is the case...   Apr 18 2019, 02:59 PM
Tdskip   If it is the bearings, which probably is the cas...   Apr 18 2019, 03:13 PM
jcd914   Test, don't guess. Test the pressure with a g...   Apr 18 2019, 06:06 PM
Tdskip   Test, don't guess. Test the pressure with a ...   Apr 18 2019, 06:11 PM
jcd914   Test, don't guess. Test the pressure with a...   Apr 18 2019, 06:24 PM
porschetub   [quote name='Tdskip' post='2706574...   Apr 19 2019, 11:10 PM
Tdskip   Thanks gentlemen, I’ll slow down and do a better...   Apr 20 2019, 07:13 AM
Tdskip   So I picked up a replacement oil pressure relief s...   May 3 2019, 03:18 PM
76-914   So I picked up a replacement oil pressure relief ...   May 5 2019, 08:03 PM
dr914@autoatlanta.com   yes and the other one through 74 is in the relief ...   May 3 2019, 03:20 PM
Tdskip   Thanks George. To install a mechanical oil gauge ...   May 3 2019, 06:23 PM
Dave_Darling   To install a mechanical oil gauge to test the oil...   May 3 2019, 10:49 PM
Tdskip   To install a mechanical oil gauge to test the oi...   May 3 2019, 11:06 PM
porschetub   It will be tight,find the widest blade screwdriver...   May 3 2019, 06:25 PM
Chi-town   I popped the relief plug loose with a gentle tap o...   May 3 2019, 11:07 PM
Tdskip   Thanks Dylan. Are the thread on this all standard...   May 4 2019, 06:55 AM
Tdskip   OK - got the mechanical gauge on (nod to @Chi-tow...   May 4 2019, 02:55 PM
Tdskip   Hot at ~850 RPM with cylinder head at 200 and oil ...   May 4 2019, 02:58 PM
porschetub   Best to do it with engine hot as that is what real...   May 4 2019, 03:04 PM
Tdskip   Yeah / seems like rebuild time.   May 4 2019, 03:07 PM
porschetub   Yeah / seems like rebuild time. What were the re...   May 4 2019, 03:36 PM
Tdskip   What were the relief valves like ? and were there...   May 4 2019, 04:43 PM
Superhawk996   My recommendation would be tear it down. If you...   May 5 2019, 10:44 AM
Tdskip   My recommendation would be tear it down. If yo...   May 5 2019, 11:24 AM
porschetub   My recommendation would be tear it down. If yo...   May 5 2019, 05:06 PM
Tdskip   Thanks mate.   May 5 2019, 06:07 PM
Tdskip   Ohhhh - new tool! That would make short work ...   May 5 2019, 08:36 PM
ClayPerrine   The engines with the second relief valve at the ba...   May 5 2019, 09:09 PM
Tdskip   The engines with the second relief valve at the b...   May 5 2019, 09:11 PM
ClayPerrine   The engines with the second relief valve at the ...   May 5 2019, 09:13 PM
Al Meredith   you mentioned that you don't know what was don...   May 6 2019, 02:00 PM
Tdskip   Thanks Al, helpful. I don’t know the engine com...   May 6 2019, 02:09 PM


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