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

Transmission pan leak

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Old Jan 22, 2007 | 06:49 PM
  #1  
JEDnoc4tech's Avatar
JEDnoc4tech
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Default Transmission pan leak

I put a cork transmission pan gasket on weekend before, it leaked. I put a synthetic gasket on this weekend and it's leaking. do I throw my torque wrench away that leads me to believe that I am applying the proper 96 inch lbs and snug the bolts down by feel? Or, can I put a bead bead of RTV silicone around the pan lip?
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Old Jan 22, 2007 | 07:11 PM
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USCG
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From: Houston Texas
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Had same problem awhile back, even bought a new pan from the dealer thinking my original was warped. Turns out to be a (gear shift selector) shaft seal...about the size of a nickel. All is well now, and it was an easy inexpensive ($5-7) fix. On the plus side, my transmission is now thoroughly flushed from dropping the pan about 4-5 times.

It's real hard to see where the leak is on these cars if you don't have a 6' lift.
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Old Jan 22, 2007 | 09:33 PM
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VetNutJim
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I think the RTV doesn't 'play' well with transmission fluid.
It doesn't make a good tranny pan gasket sealer.

You may want to check the pan on a piece of plate glass to make sure it's not warped.
Also, if someone gorilla tightened some of the pan bolts previously, you may have to fix that with a ball peen hammer.
Check each blot hole to make sure they are ok.

First thing to do is lay the pan on a known flat surface such as a piece of window glass and check around it with a feeler gauge or something to see if it's still 'ok'.

I know you mentioned 96"/Lbs. but I'll ask the dumb question anyway....
You did use an inch/pound torque wrench, right?

I've been tempted to use my regular torque wrench but . . .that's not right.
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