F@#$ing Throttlebody Gasket!

theconductor

15 Year Member

Aug 9, 2007

337

96

74

Roseville, CA

Feb 1, 2009

#1

• Feb 1, 2009

• #1

I recently had a 70mm Accufab throttlebody installed and it started leaking coolant from the egr right away. No problem, I thought. I replaced the gasket myself and it still leaks. Has anyone used gasket sealant for the egr spacer? ANy other ideas? I wonder if the throttlebody surface is warped or something.

-Kyle

 

wythors

Get off my lawn!!!

Founding Member

May 17, 2000

2,277

35

69

C Addle

Feb 1, 2009

#2

• Feb 1, 2009

• #2

Either the throttle body or the egr spacer is damaged or warped. Since the coolant is under pressure, sealer may or may not work. I'd try to fix the problem first.

 

NIKwoaC

中國製造

15 Year Member

Oct 31, 2006

5,525

943

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Chengdu Province

Feb 1, 2009

#3

• Feb 1, 2009

• #3

IS your EGR system still fully functional? I've heard before that you can eliminate the coolant passages to the EGR spacer even if you still have a functioning EGR. Do something like that at your own risk though, I can't say I've done it myself.

If you DON'T have a functional EGR system, there is no reason to run coolant through the spacer at all.

Accufab stuff is supposed to be really high quality, I can't imagine how it would be warped. Are your gasket surfaces clear of scratches? Are you torquing to spec? Also, torque the bolts in the same fashion you would the lugs on your car, that might help you get a better seal.

I wonder if the boost you're running through the system with that S-Trim is having some effect.

 

93 LX

Founding Member

Jun 2, 2000

3,081

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0

Norwalk, CA.

Feb 1, 2009

#4

• Feb 1, 2009

• #4

Mine did the same thing so I got tired of dealing with it. I got a piece of lead, cut ti ti fit and now the problem is gone. In retrospect I should have used something harder like copper or a dead soft aluminum but in either case it works, no leaks for 10 years....

 

theconductor

15 Year Member

Aug 9, 2007

337

96

74

Roseville, CA

Feb 2, 2009

#5

• Feb 2, 2009

• #5

93 LX said:

Mine did the same thing so I got tired of dealing with it. I got a piece of lead, cut ti ti fit and now the problem is gone. In retrospect I should have used something harder like copper or a dead soft aluminum but in either case it works, no leaks for 10 years....

Click to expand...

Pardon my ignorance, but you made a gasket out of lead? A friend of mine mention buying thicker gasket material and cutting to fit.

Anyone else tried an aluminum gasket?

As a side note, I ran it though another heat cycle, let it cool down and tightened the nuts again. Seems have to helped quite a bit. Still a little coming through though.

-Kyle

 

93 LX

Founding Member

Jun 2, 2000

3,081

3

0

Norwalk, CA.

Feb 2, 2009

#6

• Feb 2, 2009

• #6

Yes lead.. it works on the same principle as copper on a header gasket. The softer metal forms itself to the imperfections of the mating surfaces. I did use a bead of RTV as well.

 

M

Makdaddymac

New Member

May 28, 2005

323

1

0

orlando

Feb 2, 2009

#7

• Feb 2, 2009

• #7

same problem big bead of black rtv sealant here.(doesn't look to bad)

 

93 LX

Founding Member

Jun 2, 2000

3,081

3

0

Norwalk, CA.

Feb 2, 2009

#8

• Feb 2, 2009

• #8

Makdaddymac said:

same problem big bead of black rtv sealant here.(doesn't look to bad)

Click to expand...

No leakage in to the tb, air intake..

 

8

89lxsport50

10 Year Member

Feb 25, 2003

550

5

39

Franklin Tennessee

Feb 3, 2009

#9

• Feb 3, 2009

• #9

I have the same problem with my stock setup. I've replaced the gaskets twice, and even used rtv the second time. It still leaks. I took the hoses off and connected them with a piece of copper tubing. Someday I'll try to fix it again.

 

nisreo

New Member

Jul 22, 2006

178

0

0

Feb 3, 2009

#10

• Feb 3, 2009

• #10

If you use rtv, dont forget to let it dry before starting the car. youll get a whole lot of coolant in your cylinders real quick... pop goes the head gasket.

Ask me how I know.

 

M

Makdaddymac

New Member

May 28, 2005

323

1

0

orlando

Feb 4, 2009

#11

• Feb 4, 2009

• #11

nope i let it dry for like days and im sorry my idea of big bead is smaller than your imagining it just a gasket helper amount.
no leaks that i know of and no head gasket problems...

 

flyinghi3

Member

Jan 11, 2003

313

0

17

Manorville, LI

Feb 4, 2009

#12

• Feb 4, 2009

• #12

mine leaked when i changed out the TB years ago. my EGR is als bypassed so if yours is bypassed just get a piece of brake line and two small clamps and bypass it.