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thrust bearings going out?

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Old Sep 14, 2007 | 08:04 AM
  #1  
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Default thrust bearings going out?

hey guys im not sure if its the throw out bearing going out, or the thrust bearings going out. When the car is on at idle it makes noise, like knock knock knock knock pretty fast, but relitivly quiet. When teh A/C is on, the sound it alot louder. The sound goes away when the clutch is depressed. If this makes any difference when i press the clutch in the RPM's stay the same. When im driving and press the clutch in the rpm's drop just a little below normal idle then return to normal idle (pretty normal).. the car does NOT stall out or anything... HMMMmmmmm

1995 gsr, origional motor. 150,xxx miles. ACT clutch, street disk i believe. car is stock. I/H/C/E only mods... These were done before i got the car, i have no idea if it was boosted, nitros'd before....

Hopefully the good folks here on HT can help me out.
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Old Sep 14, 2007 | 10:06 AM
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Default

Usually if it makes a noise, and goes away when you push in the clutch then its the throwout bearing,

But if you bring it to a transmission shop like ammco or cottman or whatever you have near you, theyll look at it for free
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Old Sep 14, 2007 | 10:52 AM
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Default Re: (standbackimapro)

Yeah im really hopin its the throw out bearing....
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Old Sep 14, 2007 | 02:57 PM
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Default Re: (slowteg90)

bump 4 more thoughts
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Old Sep 14, 2007 | 03:13 PM
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Default Re: (slowteg90)

Sounds like a throwout bearing to me.
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Old Sep 14, 2007 | 06:09 PM
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Default Re: (Art701)

Well, hopefully you guys are right.

Has anyone ever had this problem before?
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Old Sep 14, 2007 | 07:23 PM
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Default Re: (slowteg90)

could be mainshaft bearing also
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Old Sep 15, 2007 | 08:06 AM
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Default Re: (4g hatch)

hmmmmmm... Cmon guys, i know somebody has had this problem before, hahaha
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Old Sep 15, 2007 | 03:59 PM
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Default Re: (slowteg90)

It gets louder with the a/c on? What does it do with the a/c belt removed?
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Old Sep 15, 2007 | 04:16 PM
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Default Re: (Chiovnidca)

It gets louder with teh A/C on. Its very quiet, yet still noticable with the A/C off. I dont think taking the belt off will make a difference.
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Old Sep 15, 2007 | 04:26 PM
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Default Re: (standbackimapro)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by standbackimapro &raquo;</TD></TR><TR><TD CLASS="quote">Usually if it makes a noise, and goes away when you push in the clutch then its the throwout bearing,
</TD></TR></TABLE>

FALSE!

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Old Sep 15, 2007 | 06:31 PM
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Default Re: (slowteg90)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slowteg90 &raquo;</TD></TR><TR><TD CLASS="quote">It gets louder with teh A/C on. Its very quiet, yet still noticable with the A/C off. I dont think taking the belt off will make a difference.</TD></TR></TABLE>
Just trying to help you narrow down the problem.
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Old Sep 15, 2007 | 06:36 PM
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Default Re: (Chiovnidca)

^ thanks for your responses.. Ill try taking the belt off if i cannot think of anything else.
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Old Sep 16, 2007 | 06:42 AM
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Default Re: (slowteg90)

bump 4 more responses!!!!!
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Old Sep 16, 2007 | 03:27 PM
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Default Re: (slowteg90)

ttt
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Old Sep 16, 2007 | 08:50 PM
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Default Re: (tha_badguy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tha_badguy &raquo;</TD></TR><TR><TD CLASS="quote">

FALSE!

</TD></TR></TABLE>

He is right, the throw out bearing is only in use when the clutch is dissengaged. Meaning it should make noise with the clutch pedal in, not all the time. May have a bad bearing in the transmission, ill have to check my book at work for the bearing noise fault trace.
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Old Sep 16, 2007 | 09:01 PM
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Default Re: (ForceFed_Motorsports)

Probably not your case, but sometimes when I start my car my exhaust starts rattling slightly on a heat shield, sounds like small fast knocks, and it goes away when the clutch is in or if I put my shoe against the exhaust tip.
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Old Sep 17, 2007 | 04:07 AM
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Default Re: (ForceFed_Motorsports)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ForceFed_Motorsports &raquo;</TD></TR><TR><TD CLASS="quote">

He is right, the throw out bearing is only in use when the clutch is dissengaged. Meaning it should make noise with the clutch pedal in, not all the time. May have a bad bearing in the transmission, ill have to check my book at work for the bearing noise fault trace.</TD></TR></TABLE>

thanks that would be great if you could do that for me.
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Old Sep 17, 2007 | 04:07 AM
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Default Re: (guymosiris)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by guymosiris &raquo;</TD></TR><TR><TD CLASS="quote">Probably not your case, but sometimes when I start my car my exhaust starts rattling slightly on a heat shield, sounds like small fast knocks, and it goes away when the clutch is in or if I put my shoe against the exhaust tip. </TD></TR></TABLE>

I wish it was that simple...
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Old Sep 18, 2007 | 03:10 AM
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Default Re: (slowteg90)

ttt
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Old Sep 18, 2007 | 11:25 AM
  #21  
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Default Re: (slowteg90)

Looked in my book but couldnt find the chart im thinking of that defines noises, when they occur, and common faults. Ill try and look again. My lunches are short lol.
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Old Sep 18, 2007 | 12:54 PM
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Default Re: (ForceFed_Motorsports)

hhaha... thats ok. Thanks alot for trying..... hopefully you can find somehting
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Old Sep 19, 2007 | 03:32 PM
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Default Re: (slowteg90)

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Old Sep 22, 2007 | 06:15 AM
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Old Sep 23, 2007 | 05:14 PM
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Default Re: (slowteg90)

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