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Help with Shudder Diagnosis

 
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northern924  
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PostPosted: Thu Apr 04, 2002 7:36 am    Post subject: Reply with quote

I hope that someone can help me with a vibration diagnosis. The car begins to shudder at about 3000 rpms. If I put it into neutral after it begins to shudder, it will continue to vibrate for another 3 seconds or so. I changed the transmission but this did not help. Could it be a throw out bearing or a damaged drive shaft? Any ideas? Thanks in advance.
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jcope  
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PostPosted: Thu Apr 04, 2002 8:35 am    Post subject: Reply with quote

Motor mounts?
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Peter_in_AU  



Joined: 29 Jul 2001
Posts: 2740
Location: Sydney, Australia

PostPosted: Thu Apr 04, 2002 9:01 am    Post subject: Reply with quote

Motor mounts! Doesn't matter how hard you look at them they'll look fine. You could try very gently jacking up the motor which might help you see if/where they're broken.
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northern924  
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PostPosted: Fri Apr 05, 2002 12:55 am    Post subject: Reply with quote

The mounts look fine and I know one was replaced less than a year ago. It sounds like something is rotating when the vibration occurs. It's just wierd that when put into neutral it will give a good shudder and then stop. As if the something rotating came to a hault. That's why I was thinking the drive shaft or the clutch throw out bearing. Has anyone ever had problems with these and know what happens when they go? Thanks
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Alex Roy  
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PostPosted: Fri Apr 05, 2002 3:26 am    Post subject: Reply with quote

Sounds like what I had except I wouldn't describe it as a shudder, there wasn't any shaking involved. It was more of a bearing grind sound). It would make noise only when I had the clutch engaged or just after engaging.....turned out to be the throw out bearing and/or the pilot bearing. I completely replaced the clutch, TO bearing, pilot bearing, and pressure plate and the noise went away.
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northern924  
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PostPosted: Sat Apr 06, 2002 2:13 am    Post subject: Reply with quote

Thanks for your replys. Here's an update. I went out to the car and attempted to put it in gear and heard a clunk. Now, it won't go into any gear. I suspect something is broken in the clutch. I'll let you know when I get it apart in case someone else has the same symptoms sometime.

[ This Message was edited by: northern924 on 2002-04-06 01:16 ]

[ This Message was edited by: northern924 on 2002-04-06 01:16 ]
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-nick  
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PostPosted: Sat Apr 06, 2002 2:57 am    Post subject: Reply with quote

bingo, it' the pilot bearing. put a little grease on the new one when you put it back in.

-nick
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