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Forum nameManual Trans - NV-T350
Topic subjectManual Transmission Noise
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=34&topic_id=7287
7287, Manual Transmission Noise
Posted by kballard81, Dec-31-69 06:00 PM
I have a 97 GS NT and the transmission makes this horrible noise when I start the car up for about 10 min until the car warms up and then it goes away.....I have a brand new clutch and throwout bearing in it and it still makes that noise. The flywheel is on correctly and tight......It makes a sound like rocks are in the transmission...when you push the clutch in, the noise goes away. What the hell is wrong with my transmission???????
7288, RE: Manual Transmission Noise
Posted by DarkOne, Dec-31-69 06:00 PM
Throwout bearing rattle. it won't damage anything, it just sounds ugly.
7289, RE: Manual Transmission Noise
Posted by Tuxdreamerx, Dec-31-69 06:00 PM
My 88 accord did this. Just the throwout bearing as stated above.
7290, RE: Manual Transmission Noise
Posted by kballard81, Dec-31-69 06:00 PM
is there anyway to fix the noise and make it go away?????i just put a new throwout bearing in it plus the clutch is new also......i dont know why it keeps making that noise. And then if im driving down the road and drop it in to 2nd gear at 3K+rpms, it grinds. Also the forks on the clutch where the bearing is hitting it is wearing a little.
7291, RE: Manual Transmission Noise
Posted by DarkOne, Dec-31-69 06:00 PM
The clutch fork uses two very small, very brittle metal tabs to locate the TOB. They tend to break if you're not extremely careful. they also tend to break if you touch them. If they're missing, the TOB is not held securely to the fork and will rattle.

if it bothers you that much, you're going to need to pull the trans, replace the fork, and reseat the TOB without breaking the tabs. if you break a tab, buy a new fork and repeat.

See why we tend to just live with it?
7292, RE: Manual Transmission Noise
Posted by kballard81, Dec-31-69 06:00 PM
oh ok i didnt know that there were tabs on the fork.....thanx ill check that out and let everyone know....i know that there where 2 tabs on the TOB but i guess those arent it.
7293, RE: Manual Transmission Noise
Posted by RoninEclipse2G, Dec-31-69 06:00 PM
Originally posted by DarkOne
They tend to break if you're not extremely careful. they also tend to break if you touch them.


I looked at one wrong and it broke, true story
7295, RE: Manual Transmission Noise
Posted by kballard81, Dec-31-69 06:00 PM
i was told that it was the front bearing inside the transmission. the tabs arent broke at all and it still makes that noise......and the funny thing is, why does it only do it for 5 min when the engine is cold?
7296, RE: Manual Transmission Noise
Posted by teklein, Dec-31-69 06:00 PM
Originally posted by kballard81
i was told that it was the front bearing inside the transmission. the tabs arent broke at all and it still makes that noise......and the funny thing is, why does it only do it for 5 min when the engine is cold?


Dude, its fine.

My car does it when its idling and kinda chilly outside. Once I push the clutch or put the car into motion it goes away.

7297, RE: Manual Transmission Noise
Posted by kballard81, Dec-31-69 06:00 PM
how come when im going faster it grinds 2nd gear?
7298, RE: Manual Transmission Noise
Posted by DarkOne, Dec-31-69 06:00 PM
because your second gear synchro is worn.

Not much you can do to fix it. I'd recommend changing the fluid, it might improve.
7302, RE: Manual Transmission Noise
Posted by kballard81, Dec-31-69 06:00 PM
ok ill try changing the fluid.....how hard is it and about how much does it cost to rebuild the tranny?
7303, RE: Manual Transmission Noise
Posted by DarkOne, Dec-31-69 06:00 PM
The problem is that second is on the output shaft, which the dealer says is serviced as a unit. it *will* come apart and *can* be serviced, but you're either going to have to do it yourself or find someone that knows these transaxles, and you're not going to be able to buy replacement parts from Satan to service second (stop ring, syncro slider, etc). There are some aftermarket rebuild kits that offer these parts, but the synchro quality is somewhat less than stock.
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