Thottle Body O-ring repair/replace with PICS - Page 11 - 3000GT/Stealth International Message Center

TRILIGHT · 04-05-2006, 07:57 PM

Quote:

Originally Posted by grtn316

I replaced the orings and now my idle is high & when i let off the gas it hangs for a few seconds before it starts to slowly decelerate.

Anyone have this prob?

Sounds like the throttle plate isn't centered properly or something else is too tight. Keeps it open more than it should be and doesn't allow it to close off as fast as it should when you let off.

grtn316 · 04-06-2006, 12:40 PM

If I open and close it about 10 times it loosens up for a little bit. Guess my grease didnt work. What kind of grease is everyone using that has lasted them a while without stickin?

skunkworks · 04-06-2006, 12:47 PM

I used lithium grease

sam

grtn316 · 04-06-2006, 12:50 PM

what the phizzuck! thats why I am using and its sticking...

TRILIGHT · 04-06-2006, 02:17 PM

I wouldn't use that on the o-rings themselves. Fine for metal but I don't think it's good for rubber. I could be wrong. Silicone grease or dielectric grease for the rubber o-rings. I just went back and it looks like you put #8 in there? Way too big. I don't know why the hell people say to use that. #7 is a perfect fit and I have no TB leaks.

grtn316 · 04-06-2006, 02:23 PM

Quote:

Originally Posted by TRILIGHT

I wouldn't use that on the o-rings themselves. Fine for metal but I don't think it's good for rubber. I could be wrong. Silicone grease or dielectric grease for the rubber o-rings. I just went back and it looks like you put #8 in there? Way too big. I don't know why the hell people say to use that. #7 is a perfect fit and I have no TB leaks.

#7 fit in mine loosely & #8 was crammed in. Did you use that metal oring with the #7? Was your loose or was it a snug fit?

TRILIGHT · 04-06-2006, 02:28 PM

Quote:

Originally Posted by grtn316

#7 fit in mine loosely & #8 was crammed in. Did you use that metal oring with the #7? Was your loose or was it a snug fit?

There was a metal o-ring there which made sort of a "channel" that the rubber o-ring sits in. It did not appear to want to be removed and I was not going to force it out. I put silicone grease (sold in a small round gray container in the same section as the o-rings) on them and slid them into place. It was a perfect fit. I have zero air leaks from the TB now.

Drweldin · 01-06-2007, 07:19 PM

This is back from the dead, but Im about to do this, and was wondering if any one has compared the BISS o-ring to the T-body o-ring...if they are the same, then the exact ring could be ordered through mitsu...just a thought...maybe they are not even close (?)

Synchro · 01-07-2007, 04:25 PM

BISS o-ring is much different from the shaft seals.

The BISS o-ring is just that, an o-ring. The shaft seals are metal rings that have a rubber flap that acts as a seal against the shaft.

Better to just go to a hardware store and buy some viton o-rings. Home Depot #8's worked best for me on my throttle shaft. I'd think that a #6 or #7 would work for the BISS, but I can't remember correctly (been a while). The only downside is that the Home Depot rings are rubber, so they will break down over time from the oil that comes through the PCV system into the intake.

It's not like rebuilding the throttle body is a huge chore, so in a year or two after the rubber rings wear out, you can replace them and clean the entire TB at the same time. Just follow a good maintenance schedule.

This really should be stickied...

John Monnin · 01-07-2007, 06:24 PM

I made a Wikipedia entry for this, I am trying to encourage other people to use Wikipedia mores so we won't have to search for greats threads like this.

http://www.3si.org/wiki/index.php/Th...ng_Replacement

04-06-2006, 12:40 PM	#102 (permalink)
grtn316 Wheels In Hand... Join Date: Dec 2005 Location: Here Drives: 95 TT Trader Rating: (10)	Re: Thottle Body O-ring repair/replace with PICS If I open and close it about 10 times it loosens up for a little bit. Guess my grease didnt work. What kind of grease is everyone using that has lasted them a while without stickin? __________________ Personal Best: 1995 Stealth TT - 11/17/2006 - 1.759 60' / 11.978 @ 116.08 MPH - UNDER CONSTRUCTION Building the 19T record!

04-06-2006, 12:47 PM	#103 (permalink)
skunkworks No loer a Noob? Join Date: Aug 2001 Location: Holmen, WI Drives: low impedance inputs Trader Rating: (9)	Re: Thottle Body O-ring repair/replace with PICS I used lithium grease sam __________________ 92 Stealth R/T TT - 13t's Installed. note:Is the machining right? - boosting to 15psi so far. Do I do this for others? No. robbeck is your man.... We know his work .

04-06-2006, 12:50 PM	#104 (permalink)
grtn316 Wheels In Hand... Join Date: Dec 2005 Location: Here Drives: 95 TT Trader Rating: (10)	Re: Thottle Body O-ring repair/replace with PICS what the phizzuck! thats why I am using and its sticking...

04-06-2006, 02:17 PM	#105 (permalink)
TRILIGHT Forum Member Join Date: Sep 2000 Location: Texas Drives: 91 Stealth R/T Turbo Trader Rating: (5)	Re: Thottle Body O-ring repair/replace with PICS I wouldn't use that on the o-rings themselves. Fine for metal but I don't think it's good for rubber. I could be wrong. Silicone grease or dielectric grease for the rubber o-rings. I just went back and it looks like you put #8 in there? Way too big. I don't know why the hell people say to use that. #7 is a perfect fit and I have no TB leaks.

01-06-2007, 07:19 PM	#108 (permalink)
Drweldin Verified Seller Join Date: Jun 2003 Location: Iowa Trader Rating: (107)	Re: Thottle Body O-ring repair/replace with PICS This is back from the dead, but Im about to do this, and was wondering if any one has compared the BISS o-ring to the T-body o-ring...if they are the same, then the exact ring could be ordered through mitsu...just a thought...maybe they are not even close (?) __________________ 1992 Stealth RT/TT:

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01-07-2007, 04:25 PM	#109 (permalink)
Synchro I miss my boost. Join Date: Jul 2005 Location: Beaverton, OR Drives: '01 S2000 Trader Rating: (10)	Re: Thottle Body O-ring repair/replace with PICS BISS o-ring is much different from the shaft seals. The BISS o-ring is just that, an o-ring. The shaft seals are metal rings that have a rubber flap that acts as a seal against the shaft. Better to just go to a hardware store and buy some viton o-rings. Home Depot #8's worked best for me on my throttle shaft. I'd think that a #6 or #7 would work for the BISS, but I can't remember correctly (been a while). The only downside is that the Home Depot rings are rubber, so they will break down over time from the oil that comes through the PCV system into the intake. It's not like rebuilding the throttle body is a huge chore, so in a year or two after the rubber rings wear out, you can replace them and clean the entire TB at the same time. Just follow a good maintenance schedule. This really should be stickied... __________________ Mods: Honda mod

01-07-2007, 06:24 PM	#110 (permalink)
John Monnin Wrenchmonkey #839 Join Date: May 2000 Location: Granger, Indiana Drives: crappy SHO Trader Rating: (27)	Re: Thottle Body O-ring repair/replace with PICS I made a Wikipedia entry for this, I am trying to encourage other people to use Wikipedia mores so we won't have to search for greats threads like this. http://www.3si.org/wiki/index.php/Th...ng_Replacement __________________ For sale 3.5L 6g74 Swap modified oil pans and thermostat hosuings http://www.3si.org/forum/f4/fs-6g74-...ied-3s-420690/