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

700R4 pan gasket

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Old Aug 4, 2002 | 12:50 PM
  #1  
Aaron's 87's Avatar
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Default 700R4 pan gasket

I over-tightened the first one (cork) and it leaked. I tightened the second one with a torque wrench to the service manual specified 8 lbft and it's starting to leak. The pan and case seem straight. Are there any neoprene type gaskets available so I can stop getting ATF everywhere?
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Old Aug 4, 2002 | 12:52 PM
  #2  
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Us 4+3 guys throw away our gaskets and use black RTV. Maybe that is a possibility?
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Old Aug 4, 2002 | 01:22 PM
  #3  
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Default Re: 700R4 pan gasket (Aaron's 87)

I just hade my tranny done and the guy used some tranny grease around the gasket. {not cork} Make sure that it is not coming from other gasket surfaces like the dip stick tube front pump seal shifter seal, Etc.

Good luck.
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Old Aug 4, 2002 | 01:58 PM
  #4  
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Default Re: 700R4 pan gasket (Aaron's 87)

Try a rubber gasket instead of cork. That seems to work for me.
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Old Aug 4, 2002 | 02:11 PM
  #5  
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Default Re: 700R4 pan gasket

Aaron,
I never use the cork gaskets..thats 50's technology to me.They always swell and leak.Its a matter of when.

I buy my filter and gasket kits from GM and I throw the cork gasket away and use the charcoal/black colored gasket in it.Its Some kind of thick paper or composite of some kind.Never leaked on me.

GM gives you two gaskets with the kits.I also never use RTV or any sealers,Just clean the surfaces real good and use the black gasket and torque away.
:)

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Old Aug 6, 2002 | 12:01 AM
  #6  
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Default Re: 700R4 pan gasket (Bill's86Coupe)

I bought a rubber pan gasket for 700r4 from NAPA for about $4.00. Holds torque better than cork
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Old Aug 6, 2002 | 12:23 AM
  #7  
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Default Re: 700R4 pan gasket (Rick86)

What kind of gasket are you using? NEVER use those rolled up ones the parts places sell. They will never seal. Your local Chevy dealer has good ones that come in a flat package, along with the filter. Always worked good for me :D
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