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Old 10-12-2004, 06:43 PM   #1 (permalink)
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Default weird noise that goes away when clutch is engaged .

When my car has warmed up and its idling i get a strange tapping noise coming from the engine bay if the car is in neutral . If I then push on the clutch it stops .

just had a new clutch , flywheel , release bearing installed . This noise existed before the new clutch but now its louder .

Any ideas ? It kinda sounds like rod knock but I know it isnt , engine was completely rebuilt 12k ago , logger does not log any phanton knock .

its weird .
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Old 10-12-2004, 06:51 PM   #2 (permalink)
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Default Re: weird noise that goes away when clutch is engaged .

Mine does the exact thing. Kormex told me that its nothing to worry about. Its a little embarasing but other than that i guess its fine. He told me what it was but i forgot
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Old 10-12-2004, 06:56 PM   #3 (permalink)
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Default Re: weird noise that goes away when clutch is engaged .

welcome to the club, vr4dave and I have been scratching our heads on this one for awhile... probably 6 transmissions between us over the years and they all did this.
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Old 10-12-2004, 07:03 PM   #4 (permalink)
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Default Re: weird noise that goes away when clutch is engaged .

Sounds like a rattling Throw out bearing...
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Old 10-12-2004, 07:11 PM   #5 (permalink)
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Default Re: weird noise that goes away when clutch is engaged .

hmmm so i`ll ignore it then . It was kinda alarming to hear it louder today , i thought i`d spun a bearing coming down the highway to work .

I find myself constantly listening for new noises

The throw out bearing has just been replaced . I`m wondering if it isn`t the fork that the bearing slots onto . It looked a little worn whe it was being reassembled but we smeared it in molybdenum grease .

I also wondered if it could be excess crankshaft endfloat ?
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Old 10-12-2004, 07:11 PM   #6 (permalink)
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Default Re: weird noise that goes away when clutch is engaged .

same here -- it's the throw-out bearing. my tranny was replaced with a new kormex, and the chattering returned soon after....
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Old 10-12-2004, 07:13 PM   #7 (permalink)
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Default Re: weird noise that goes away when clutch is engaged .

My car does the same thing. From what I've heard is it's the throw out bearing. nothing to worry about, it's just the way the transmission was designed.
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Old 10-12-2004, 07:20 PM   #8 (permalink)
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Default Re: weird noise that goes away when clutch is engaged .

So along with lifter noise and throw out bearing rattle , what other harmless noises do our cars make ?

I just want to know before i hear them on mine
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Old 10-12-2004, 08:17 PM   #9 (permalink)
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Default Re: weird noise that goes away when clutch is engaged .

yep, it's the TB, best bet is to use a Mitsu OEM TB when you do the clutch. Aftermarket ones are a crap shoot.
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Old 10-12-2004, 08:32 PM   #10 (permalink)
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Default Re: weird noise that goes away when clutch is engaged .

It has a brand new mitsu one in atm , Chrysler did it for me with a brand new mitsu pressure plate and disk with a brand new rps aluminum flywheel from DR .

There is nothing used or cheap in my clutch atm , its only a week old .
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