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Armed Bastard
Join Date: May 2005
Location: Chester County, PA
Posts: 396
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Where’s this oil coming from?!?
Hi everyone,
I’m cleaning up some things on my car and trying to chase down some oil leaks. I completely cleaned the bottom of the engine about two weeks ago. The car has been on the lift since then. Not started or moved.  The oil has UV dye in it (obviously). I’ve been looking around the top of the engine but I’m not seeing anything obvious. Any thoughts would be appreciated.
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Damion '77 911S Turbo, EFI 2.7l, Carrera intake, Megasquirt 3 with MS3x, Fuel & Ignition |
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04-30-2023, 03:45 PM
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looks like cylinder base gasket
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Instagram: @TuitTech |
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04-30-2023, 04:05 PM
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are you saying there is nada on top of the engine?
Ivan
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1985 911 with original 501 761 miles...807 506 km "The difference between genius and stupidity is that, genius has its limits". Albert Einstein. |
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04-30-2023, 10:38 PM
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Join Date: Jul 2013
Location: Brisbane, Australia.
Posts: 2,628
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cool to see the dye in action.
I'd have thougght it was a decent leak up top; breather, pressure switch, thermostat o ring?
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Always learning. www.aircooledporsches.com.au See me bumble my way through my first EFI and TURBO conversion! https://youtu.be/bpPWLH1hhgo?si=GufVhpk_80N4K4RP |
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05-01-2023, 03:12 AM
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classic triangle of death.....
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1985 911 with original 501 761 miles...807 506 km "The difference between genius and stupidity is that, genius has its limits". Albert Einstein. |
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05-01-2023, 05:06 AM
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Registered
Join Date: Jul 2001
Location: mt. vernon Wa. USA
Posts: 8,718
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it is always surprising how much oil can leak from the triangle of death. I am working on a 70T that developed a significant leak.......that appears to be coming from a failed engine t'stat. This is one of the early adjustable types and it looks to be leaking through he adjuster vs. the external o-ring......but the leak path is similar to what you are showing in your pic.
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[B]Current projects: 69-911.5, Previous:73 911X (off to SanFrancisco/racing in Germany).77 911S (NY), 71E (France/Corsica), 66-912 ( France), 1970 914X (Wisconsin) 76 911S roller..off to Florida/Germany RGruppe #669 http://www.x-faktory.com/ |
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05-01-2023, 08:18 AM
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Banned
Join Date: Mar 2014
Posts: 10,751
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Probably triangle of death. Get yourself a mirror to look down at the thermostat area while shining the UV light. It'll have a healthy glow I bet.
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05-01-2023, 08:42 AM
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Armed Bastard
Join Date: May 2005
Location: Chester County, PA
Posts: 396
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I have to take a closer look at the triangle of death. Bit tricky to see back there...
Only thing I'm not sure about is the amount of oil that has leaked without the car being started, although I didn't clean the top of the engine so I suppose it could have migrated it's way down.
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Damion '77 911S Turbo, EFI 2.7l, Carrera intake, Megasquirt 3 with MS3x, Fuel & Ignition |
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05-02-2023, 03:40 AM
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also make sure your breather hose clamp is even there or is not loose..for this kinda oil leak
Ivan
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1985 911 with original 501 761 miles...807 506 km "The difference between genius and stupidity is that, genius has its limits". Albert Einstein. |
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05-02-2023, 04:44 AM
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Join Date: Mar 2014
Posts: 10,751
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Quote:
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05-02-2023, 05:08 AM
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Registered
Join Date: Jan 2011
Location: Gulf Coast FL
Posts: 1,485
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Quote:
Also, if the hose is rock hard, it will leak no matter how tight you try to get the clamp. |
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05-02-2023, 06:24 AM
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