C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Oil leak 90

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Old Dec 18, 2009 | 10:04 AM
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Default Oil leak 90

I have a 90 with an oil leak that appears to be above the trans, close to the firewall. Possible coming from some sensors. The oil that hits the ground is old and sticky. Any ideas, pictures ect.. would be appreciated.
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Old Dec 18, 2009 | 10:11 AM
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Originally Posted by Cfan
I have a 90 with an oil leak that appears to be above the trans, close to the firewall. Possible coming from some sensors. The oil that hits the ground is old and sticky. Any ideas, pictures ect.. would be appreciated.
Intake gasket
Valve cover gasket
distributor gasket
oil pressure sending unit(s) or the tree they mount in.
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Old Dec 18, 2009 | 12:17 PM
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OP sending unit behind the distributor. Snake a small mirror in there and look.
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Old Dec 18, 2009 | 03:18 PM
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Thanks, thats the way I was leaning. I will check it out when I get home this evening and let you know what I find.
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Old Dec 18, 2009 | 04:35 PM
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Clean all with break cleaner and use dye.
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