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#1 |
![]() Join Date: Sep 2018
Location: Groton, CT
Posts: 379
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I have developed an oil leak on my 92 415. I looked in all the obvious places, but found nothing.
Oil seems to be collecting in the area of the crank sensor/dipstick tube. It's coming from somewhere above there. Pan bolts are tight, no leak from oprv cover. Front of oil pan is dry. Cam cover is dry. Front seal area is dry. Any ideas? Thanks. Sent from my Pixel 4a (5G) using ZR-1 Net Registry mobile app
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2018 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige |
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#2 |
![]() Join Date: Apr 2007
Location: Northern VA
Posts: 2,654
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Oil leaking past the crank sensor O-ring seal is the usual culprit. Brother Yun came up with larger size O-ring replacement that solves the problem.
Sent from my iPhone using ZR-1 Net Registry
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Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
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#3 |
![]() Join Date: Aug 2006
Location: McLean, VA
Posts: 3,710
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I?ll look for it. I had a bag of that stuff but may have gotten lost during the move.
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#4 | |
![]() Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,384
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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#5 |
![]() Join Date: Sep 2018
Location: Groton, CT
Posts: 379
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Most likely the crank sensor, but there is oil a bit higher on the block. Maybe being blown around?
When Mark built the 415, he had a leak at the crank sensor as well. Haven't had a leak anywhere since the build. Just started this year. Sent from my Pixel 4a (5G) using ZR-1 Net Registry mobile app
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2018 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige |
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#6 |
![]() Join Date: Aug 2006
Location: McLean, VA
Posts: 3,710
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Paul,
Message me your address. I?ll mail you a couple of crank sensor o rings. |
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#7 |
![]() Join Date: Sep 2018
Location: Groton, CT
Posts: 379
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Message sent.
What a great community! Thanks Sent from my Pixel 4a (5G) using ZR-1 Net Registry mobile app
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2018 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige |
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#8 | |
![]() Join Date: Aug 2006
Location: McLean, VA
Posts: 3,710
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#9 |
![]() Join Date: Sep 2018
Location: Groton, CT
Posts: 379
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Well, I think I found the oil leak and it's not good news. Seems to be leaking between the right head and the block under #2 exhaust port.
I normally do my own work, but pulling the head is not in my list of expertise. Ugh...... Sent from my Pixel 4a (5G) using ZR-1 Net Registry mobile app
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2018 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige |
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#10 | |
![]() Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,384
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There are two sources of leaks in that area, which are common. 1. Oil Pressure Switch. See the left side of the following photo. Remove the wiring connector & look for oil in the connector. If there is oil, replace the switch. ![]() 2. Oil Pump Access Cover (difficult to access) Photo showing the cover. Located at the very front of the Right side of the Lower Crankcase. Frequently due to loose bolts,w which can be tightened to stem the leak. If no love from that procedure, remove & replace the gasket. ![]()
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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