Throttle body to Intake manifold gasket(pic added)

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CATarga

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May 22, 2008
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When rebuilding my 7m I used the metal gasket that came w/the kit to replace the metal one that was on it. It is leaking and the bolts are torqued to the correct setting.

I don't remember if I sprayed it with copper coat or not. It is unlikely I did seeing how it isn't exposed to heat like the exhaust gasket is. Should I have used copper coat? Should I use paper gasket, or just some FIPG?
 
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str8_6

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Mar 14, 2007
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CATarga;1220377 said:
When rebuilding my 7m I used the metal gasket that came w/the kit to replace the metal one that was on it. It is leaking and the bolts are torqued to the correct setting.

I don't remember if I sprayed it with copper coat or not. It is unlikely I did seeing how it isn't exposed to heat like the exhaust gasket is. Should I have used copper coat? Should I use paper gasket, or just some FIPG?
Click to expand...

i could've sworn that that gasket wasnt or shouldn't be metal, but i could be wrong. i might be thinking of something else. it was that paper type..or whatever that paperish material is.

did you make sure to clean the mating surfaces good?

i wouldnt use fipg as that shouldnt be needed for this gasket and its mainly just used for mating surfaces in relation to oil/coolant...fluid things.
 
sneakypete

sneakypete

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Jul 18, 2007
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ive run without that gasket for about a month without any problems. i could just be lucky. just clean both surfaces good and use some fipg on the gasket for extra sealing.
 
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CATarga

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May 22, 2008
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Both of the surfaces were clean, both looked like fresh aluminum when I reinstalled the T-body. I guess I will remove/reinstall it using some FIPG and see. If it leaks again, I will then make a paper gasket and try it again.
 
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CATarga

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May 22, 2008
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The gasket kit came w/3 metal ones, two square and one rectangular, and no paper one that would have gone on the throttle body. I have never seen a metal one on an intake, but this is also my first turbo, so on the rebuild I just followed what had been used before. Since it appears that there shouldn't be a metal one I guess I wont re-use it and just make just make a paper one.
 
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CATarga

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May 22, 2008
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Here is a pic of the 3 layer metal gasket.

It wouldn't have gone anywhere else but the t-body/intake.
I did find a cork gasket in the gasket kit that had the same bolt pattern, but only had a 1.25" diameter hole, and there would have been very little edging left after cutting it to match the t-body.

I went ahead and made a new one and used a very thin layer of sensor safe FIPG, shouldn't be an issue now.
 
toy fanatic78

toy fanatic78

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Oct 17, 2008
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CATarga;1222051 said:
Here is a pic of the 3 layer metal gasket.
Click to expand...

That is the same TB gasket I have always got when I've ordered it from the dealer.It's three layers of metal w/a neoprene seal around the opening.Only seen paper ones in my 5M motors.
 
shaeff

shaeff

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JDM or USDM motor? If it's JDM, or at least a JDM throttlebody, it'll leak, as there's only one vacuum port on the top of the TB. Ask me how I know. ;) LOL.
 
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CATarga

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May 22, 2008
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It is a USDM motor as far as I know. When I pulled it down the block looked like it had never been touched, though the head was too clean to have been the original.

The t-body had two corresponding ports to the cut-outs of the gasket.
 
grimreaper

grimreaper

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Jul 2, 2008
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my TB has a single port on the back. im pretty sure its a usdm TB (talking about the port for the pcv system). this the port you speak of shaeff?
 
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