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chris2913 rice boy
Joined: 09 Jul 2003 Posts: 35
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Posted: Sun Sep 21, 2003 11:36 pm Post subject: anybody know? |
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whenever changing up gears and let out clutch there is a clunk noise and this also happens when i let off the accelorator, would anybody know what this is? couldnt be anything serious? |
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Frederick Stienheld petrol head
Joined: 05 Sep 2002 Posts: 2719
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Posted: Sun Sep 21, 2003 11:38 pm Post subject: Re: anybody know? |
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my guess is tailshaft / diff problems |
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Pavlos backyard mechanic
Joined: 05 Oct 2001 Posts: 920
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Posted: Sun Sep 21, 2003 11:38 pm Post subject: Re: anybody know? |
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That happened in my old commodore. The diff was fucked. might be your problem..
Pavlos. |
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fazz tinkerer
Joined: 15 Sep 2003 Posts: 87
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Posted: Mon Sep 22, 2003 11:27 am Post subject: Re: anybody know? |
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if it is not your diff or uny goints it is most likly your torque tube rubber is stuffed |
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TheConverted rice boy
Joined: 18 Sep 2003 Posts: 13
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Posted: Mon Sep 22, 2003 1:50 pm Post subject: Re: anybody know? |
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check to make sure your engine mounts are'nt split |
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rust3 backyard mechanic
Joined: 04 Feb 2002 Posts: 971
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Posted: Mon Sep 22, 2003 2:21 pm Post subject: Re: anybody know? |
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there is meant to be a spring inside the tailshaft which stops it hitting the mainshaft in the gearbox. without that spring it will hit the mainshaft on gear changes and deacceleration |
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GROOV3 petrol head
Joined: 04 Oct 2001 Posts: 3682
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Posted: Mon Sep 22, 2003 2:24 pm Post subject: Re: anybody know? |
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well to help us out guessing where is the noise comming from front middle or back
usually its the tourqu tube rubbers perished
but it can be uni joints gearbox mounts engine mounts diff |
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Poida tinkerer
Joined: 29 Aug 2003 Posts: 303 Location: Vic/NSW border
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Posted: Mon Sep 22, 2003 6:25 pm Post subject: Re: anybody know? |
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Park the car with it in neutral and the handbrake on. Slide under the car and grab the tail shaft. Can you twist it back and forth? Any movement is wear in the diff.
Added to this there may also be movement due to wear in the gearbox but this test won't show that.
Now try to shake the tailshaft up & down then side to side. Some small movement is expected but if it freely moves it's from the rubber mount at the front of the torque tube being damaged.
To check if the spring is present inside the gearbox yoke you'll have to take out the tailshaft. If the rear gearbox seal is leaking it is possible the damage to the seal has been caused by extra movement fore and aft of the yoke.
To test wear in the gear box you'll need to juck up the back of the car (wheels off the ground) and place it on stands. With the handbrake off and the car in first gear, slide under and try to turn the tailshaft again. Do it in each gear. The movement you experience is wear in the gearbox. Fore and aft movement of the gear mainshaft will also make that clunk. _________________ I try to tackle one day at a time, but often several days attack me at once.
(The views I present are my own and NOT necessarily of the administrators or other members of this site.) |
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