TB Gasket and Shaft Seal

[syndr0me]

In a 95 TSi AWD, Are both TB gaskets the same? The on in the intake and the other from the elbow?

I am going to do a TB shaft seal replacement as well, I found Chicago Rawide #3030 and CR # 3930. It is unclear which one I need unless I need one of each. If I can not acquire these CR parts, I was thinking of using o-rings (The car has less then a weak until storage, I am looking for a temp fix). what size do I need, 13mm x 10mm x 3mm ?

Thanks.

 

[97gst_spyder]

Just get them from STM, http://streettunedmotorsports.com/parts/stm_evo_dsm_3000gt_throttle_body_seals.htm...

 

[snowborder714]

No, the gaskets are not the same.
TB to IM - EXTREME PSI : Your #1 Source for In Stock Performance Parts
TB to TB Elbow - EXTREME PSI : Your #1 Source for In Stock Performance Parts

Seal size/info should be in this article.
TB Shaft Seals VFAQ

 

[syndr0me]

No, the gaskets are not the same.
TB to IM - EXTREME PSI : Your #1 Source for In Stock Performance Parts
TB to TB Elbow - EXTREME PSI : Your #1 Source for In Stock Performance Parts

Seal size/info should be in this article.
TB Shaft Seals VFAQ

Thanks a lot for the quick response!

If I do this shaft seal replacement, is it necessary to replace the TB gaskets? If it is, then never mind this idea as the car is going to be put away by then.

Ok well I have been calling for CR #3930 parts ... no one has them in stock are don't look lik ill be getting them any time soon. If I go the o-ring route, what size o-ring? Is it not covered in the vfaq.

Thanks

 

[snowborder714]

Shaft seals - EXTREME PSI : Your #1 Source for In Stock Performance Parts

Yes, you need to replace those 2 gaskets. Unless you want to put your throttle body back on with old gaskets and risk having a boost leak.

 

[syndr0me]

Shaft seals - EXTREME PSI : Your #1 Source for In Stock Performance Parts

Yes, you need to replace those 2 gaskets. Unless you want to put your throttle body back on with old gaskets and risk having a boost leak.

WOWOW great stuff! Impressed by these forums! Keep up the good job!

Well the TB gaskets are already leaking a bit. The big picture of this is that I am trying to find my boost leak, I have my tester hooked up to my TB elbow and I am only hearing leaks from the TB gasket and seals. I used to hit 25Psi now I barely manage 17PSI then it tapers off quickly to like 12-13psi. Could the TB leaks be the cause of this terrible boost or not even close.. ?

We are talking about a 13-14psi BLT down to 4-5PSI in about 5-6 or so seconds.

 

[snowborder714]

I don't know if only the TB gaskets and seals could be causing that, but if so, those are massive leaks. Your best approach is to fix what known leaks you have now and then retest.

 

[syndr0me]

Well thanks alot snowborder714 for your help, greatly appreciated. You got a first name if you don't mind me asking?

Anybody else want to chime in regarding my excessive boost leak?

 

[snowborder714]

Check my signature

 

[syndr0me]

Check my signature

. Checking your signature even after you told me to I though you were joking. Ye, but it's there ;p

Thanks Brian!

 

[Calan]

Well thanks alot snowborder714 for your help, greatly appreciated. You got a first name if you don't mind me asking?

We usually just refer to him as "Sweetness".

 

[syndr0me]

We usually just refer to him as "Sweetness".

Yes mam'

 

[Calan]

Yes mam'

Hey now. I'm a DAMN good looking man! (but I'd make for one ugly-ass looking woman).

... I barely manage 17PSI then it tapers off quickly to like 12-13psi....We are talking about a 13-14psi BLT down to 4-5PSI in about 5-6 or so seconds.

That's a pretty big leak for it to be TB gaskets and/or seals IMO.

 

[syndr0me]

That's a pretty big leak for it to be TB gaskets and/or seals IMO.

Head gasket failure? Does that make a hug POP/KABOOM when it goes?

 

[NeMiZiS]

What is wrong with just using gray RTV?

 

[Calan]

What is wrong with just using gray RTV?

Everything.

OEM TB gaskets work great, need no additional sealer, are easy to remove, don't make a mess, and can actually be reused in some cases.

After spending a good 3 hours trying to clean up a member's TB and IM that was caked with RTV...I think I'd strangle someone if I saw them using it instead of $4 worth of OEM gaskets.

 

[NeMiZiS]

I read here to use gray RTV.
Post #6, worked great after my brand new OEM gaskets kept leaking.

http://www.dsmtuners.com/forums/bolt-tech/413049-throttle-body-gasket-rtv.html

 

[Calan]

If the OEM gaskets aren't sealing, something is causing it. With a clean, flat surface on the IM and TB, I've never had a single issue with the OEM gaskets and their built-in sealing rings. And I've never had a mess to clean up when pulling and re-installing the TB either.

 

[syndr0me]

This RTV gasket debate is fun but what about my head gasket question guys?

 

[Calan]

Your thread title is "TB Gasket and Shaft Seal".

How did a head gasket get into this discussion?

Head gasket failure? Does that make a hug POP/KABOOM when it goes?

Not that I've ever heard. (and you never said anything about a POP/KABOOM in your original post).

http://www.dsmtuners.com/forums/articles-engine-fuel/336535-do-you-have-blown-head-gasket.html


****

This is sounding more and more like a coupler blew off some where. Usually a loud pop followed by a massive boost leak.

 

[ed1380]

I recommend machv. They're the cheapest. Throttle Body Seals

 

[syndr0me]

Your thread title is "TB Gasket and Shaft Seal".

How did a head gasket get into this discussion?



Not that I've ever heard. (and you never said anything about a POP/KABOOM in your original post.

Ya sorry about that, this thread is a smaller portion of the"Bigger Picture" which was discribed in another thread title "KABOOM + SMOKE - car runs fine"

I originally testing for boost leaks, then I had a TB gasket and seals question... having such a massive leak from the TB elbow and so on I figured maybe a head gasket failure was in question.

Sorry if this is bringing confusion guys.

 

[boosting_pwr]

I had a small leak coming from my TB but once I replaced the gaskets it stopped. I have seen people use rtv which works but its a pain to clean later on if you need to replace them or remove it for some reason.

 

[syndr0me]

I am (was) also running 25psi of boost on stock headstuds. Logger counts 0 knock on all RPMs though.