 My 914-6 GT Tribute, low oil pressure when warned up. |
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| mlindner |
 Aug 18 2021, 06:47 AM
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Senior Member  Group: Members Posts: 1,575 Joined: 11-November 11 From: Merrimac, WI Member No.: 13,770 Region Association: Upper MidWest 
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Every thing seems fine, start up, warm up all good oil pressure reading. But after a while at idle the oil pressure gauge is almost nothing. Running 20-50 valvaline for brake in. Should I go to straight 60 wt race oil. This car is mostly a track car, or when driven on the street it likes the 5 to 7,000 rpm range. Not a cold weather 914. Thanks, Mark
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| sixnotfour |
Aug 18 2021, 06:41 PM
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914 Wizard Group: Members Posts: 10,633 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains 
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Must be Racing Clearances ..Haha, general rule is 1 bar per 1k rpm,,we a carrera the othe day same way as yours,, But it has a ton of miles on it.Cut filter open and monitor,,at this point 20/50. Oil analysis.
Unknowns are always a gamble...Ask Eric Shea about his 2.5.. almost a total failure, before rebuild..really nasty rod bearings.. 3 bar 4 bar oil pump ?? all makes a diff. ..shiny inst always best.. |
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| stownsen914 |
Aug 18 2021, 08:46 PM
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Senior Member Group: Members Posts: 930 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
I believe 10 psi per 1000 RPM is the rule of thumb.
I think it's not uncommon for early motors to have essentially 0 oil pressure at idle. I recall my parents' 1970 911 did that when the oil was hot. Perhaps more likely if it has an early oil pump. Not saying it's ideal, mind you. |
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| 930cabman |
Jul 13 2024, 01:44 PM
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#4
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Advanced Member Group: Members Posts: 3,692 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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QUOTE(stownsen914 @ Aug 18 2021, 08:46 PM)  I believe 10 psi per 1000 RPM is the rule of thumb. I think it's not uncommon for early motors to have essentially 0 oil pressure at idle. I recall my parents' 1970 911 did that when the oil was hot. Perhaps more likely if it has an early oil pump. Not saying it's ideal, mind you. Another older thread, but the information does not change. Oil temp in the 180F range, green light is on solid at idle (1,000 rpms) and reading less than 10psi on a hard piped gauge. Fresh 2.7 with new bearings, etc, etc. 45psi at 3500 rpms when engine is warm |
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Posts in this topic
mlindner My 914-6 GT Tribute, low oil pressure when warned up. Aug 18 2021, 06:47 AM
infraredcalvin When warm does it build with rpm, if so how much? ... Aug 18 2021, 07:55 AM
wndsrfr What rpm at idle....keep mine about 1000 ... Aug 18 2021, 03:37 PM mlindner Thanks Pat, a little more information. The engine ... Aug 18 2021, 09:01 AM Justinp71 Hmm, my 3.2 is a lot different than yours. Warmed ... Aug 18 2021, 05:50 PM stownsen914 Re: the cam oil restrictors, I assume you did your... Aug 18 2021, 08:50 PM IronHillRestorations I'm with sixnotfour, you should have 1 bar per... Aug 19 2021, 06:21 AM stownsen914 This 1 bar per 1000 RPM guidance - is that for SC ... Aug 19 2021, 08:14 AM Justinp71
This 1 bar per 1000 RPM guidance - is that for SC... Aug 19 2021, 09:47 AM mlindner Hi Perry, on my gauge the first number after 0 is ... Aug 19 2021, 08:19 AM infraredcalvin The old car loved Brad penn/penngrade, I switched ... Aug 19 2021, 10:03 PM technicalninja Have you put a mechanical gauge on it yet?
I woul... Jul 13 2024, 03:53 PM |
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