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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Upper Plenum Gasket

  • Thread starter Thread starter RatStang
  • Start date Start date Apr 15, 2010
R

RatStang

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Feb 11, 2010
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Apr 15, 2010
#1
  • Apr 15, 2010
  • #1
Has anyone ever doubled up the upper plenum gasket? Were their any issues... leaks?
 

tannerc91gt

This last 25% is foreign territory at this point
Founding Member
Nov 29, 1999
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Apr 15, 2010
#2
  • Apr 15, 2010
  • #2
may i ask why you're doing this?
 
R

RatStang

New Member
Feb 11, 2010
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Apr 15, 2010
#3
  • Apr 15, 2010
  • #3
To make a long story short, I need the clearance for my blower manifold. The manifold pushes down on the fuel regulator and causes the the rear three injectors on the pass side to leak.

A spacer would seem like the easiest thing to do but then the bracket for the blower snout would have to be modified to accomodate the thickness of the spacer.
 

tannerc91gt

This last 25% is foreign territory at this point
Founding Member
Nov 29, 1999
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Apr 15, 2010
#4
  • Apr 15, 2010
  • #4
i would think that even with 2 plenum gaskets, once torqued down, the added height would be very little (although my trick flow gaskets were actually fairly thick)

not sure what intake you're using but the smallest spacer i can seem to find is .375"
 

stykthyn

I want to measure mine. It doesn't look that tall.
15 Year Member
Jul 6, 2006
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gainesville
Apr 15, 2010
#5
  • Apr 15, 2010
  • #5
spray both gaskets with some of the copper spray adhesive and I dont think you will have an issue at all.
 
R

RatStang

New Member
Feb 11, 2010
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Apr 15, 2010
#6
  • Apr 15, 2010
  • #6
tannerc91gt said:
i would think that even with 2 plenum gaskets, once torqued down, the added height would be very little (although my trick flow gaskets were actually fairly thick)

not sure what intake you're using but the smallest spacer i can seem to find is .375"
Click to expand...


Yeah... the tolerance I'm looking for is very close. With no gasket, I can make the mating surfaces touch without creating the problem. Once I apply a fair amount of torque, it presses down enough to cause the issue. So I'm looking for (with luck) just enough space that everything is happy.

stykthyn said:
spray both gaskets with some of the copper spray adhesive and I dont think you will have an issue at all.
Click to expand...

Good call... basically turn them into a single gasket. I'll give that a shot. The gaskets that I have are the Felpro with the metallic core (read: thicker than the plain ole paper version)... so this may be just the thing.
 
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