Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

What is this thud

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Old Mar 13, 2008 | 08:28 PM
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Default What is this thud

So I drove the car today (2000 WS6 m6) and it hasnt been driven in a few days. So when I go to pull out of my neighborhood as the clutch is engaging at the top of the pedal I hear and feel this thud. Its not bad but it is there. It only does it when I engage into 1st from a dead stop. I layed into first real hard and everything was fine. Now, if I really really baby the clutch it sometimes wont make the thud. I dont know what to make of this. It doesnt do it in any other gear. If anyone knows anything I would appreciate it. Its something every week with this car...
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Old Mar 13, 2008 | 09:30 PM
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Does the shifter jump around at all?...Or do you just "hear" it.
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Old Mar 13, 2008 | 09:45 PM
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I just hear it and it can somewhat be felt
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Old Mar 14, 2008 | 01:26 AM
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it may be either tranny mount, but my car also if i just put it into 1st gear sometimes i hear like this slight knock! i think there may be a little play in my differnsials gearsm if your in 5th gear driving normal and you give it a little throttle and you see the shifter move up and down as your giving gas then its the tranny mount!
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Old Mar 14, 2008 | 09:21 AM
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Ok ill try some gas in 5th gear. I dont think that it is anything serious because like I said I went WOT from 1st through 3rd and there were no issues whatsoever.
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Old Mar 14, 2008 | 09:39 AM
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could possibly be the trans or tq arm mount
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Old Mar 14, 2008 | 10:04 AM
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Yeah I guess Ill have to check all of these, if anyone else has any suggestions chime in.
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Old Mar 14, 2008 | 10:16 AM
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Originally Posted by brad8266
could possibly be the trans or tq arm mount
Agreed, I have personally had my BMR TQ arm bolt for the mount come out and since it opens on the top half the arm thuds against the underside of the body.
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Old Mar 14, 2008 | 11:38 PM
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I agree. Its very possable its the t-arm mount. When I did the T56 conversion on my 94 B4C i forgot to put the top bolt in my t-arm mount and just closed the clam shell around the end of the t-arm.... All Ive got to say is WOW! Ive never seen my phone fly so high and into the rear hatch compartment when I dumped the clutch. It didnt "thud" it SLAMMED. Dented the floor and wedged the t-arm up above the trans. What a pain in the rear. Needless to say I never made that mistake again.

Jeremy
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Old Mar 14, 2008 | 11:42 PM
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I have a Chrome moly end link on my Adj. TA and it thuds sometimes under conditions that seem similar to yours... Did you recently install a new TA?
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Old Mar 15, 2008 | 03:05 PM
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No its the stock torq arm and the noise isnt that loud but its definitely there
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Old Mar 15, 2008 | 10:41 PM
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Your transmission mount could be cracked too. I replaced on for a friend that was only halfway broken and it would still bump the floor. Check all your bolts and the t-arm mount. Good luck.

Jeremy
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