LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

rubber membrane in throttle body?

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Old Jul 6, 2006 | 07:45 AM
  #1  
96TurboTA's Avatar
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From: Brockton, Ma
rubber membrane in throttle body?

Does anyone know the purpose of the rubber membrane under the top cover of the throttle body, and also where to get a new one?
Old Jul 6, 2006 | 08:07 AM
  #2  
anaik's Avatar
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Re: rubber membrane in throttle body?

Don't know the purpose, but here is the part #.

http://shbox.com/1/t_body_kit.jpg
Old Jul 6, 2006 | 08:23 AM
  #3  
96TurboTA's Avatar
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Re: rubber membrane in throttle body?

Originally Posted by anaik
Don't know the purpose, but here is the part #.

http://shbox.com/1/t_body_kit.jpg
thanks
Old Jul 6, 2006 | 10:54 AM
  #4  
Bandit95LT1's Avatar
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From: bakersfield
Re: rubber membrane in throttle body?

yea what does that thing do?
Old Jul 6, 2006 | 01:25 PM
  #5  
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Re: rubber membrane in throttle body?

Its a gasket. It seals the top plate so you can't pull dirty air past the cover plate, and into the passage in front of the throttle blades. Not clear why they made it so large, but its a gasket.
Old Jul 6, 2006 | 01:56 PM
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Re: rubber membrane in throttle body?

What he said^

Do any of you replace your TB gasket when you take it off from the intake manifold like for cleaning and such? I have cleaned my TB a couple times and never replace it. I have heard some people say they replace it.

Last edited by "White Knight"; Jul 6, 2006 at 01:59 PM.
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