Engine/Transmission (1994 - 1998) nv4500 grinding

[RSergeant]

Hey guys, having problems with the transmission. I have a Mitchell twin disc. Just rebuilt the motor, what a job. Since then I thought the rear main was leaking and it wasn't. So I pulled the transmission and clutch... no leak. reinstalled lock tighted everthing. Drove it a few times and noticed a vibration in the clutch pedal and the shifter. kept driveing, probalbly a mistake! figured after some break in I'd let the new twins spool up a bit tire smoke in 2nd, 3rd, and 4th(pretty neat but then I heard a noise. Now when I push the clutch pedal in, no noise yet, then when I go to shift into gear. The transmission ( I think) is making a noise ( like its the snycros). Mainly at a standstill. But it is in every gear... . I have searched the archives, the only one that came close was possibly the pilot bearing has fallen out or something of that nature. Thanks so much always an informative sight... . . PLease help

 

[gwagner]

I think that I remember hearing that with a twin disc clutch, there are no springs so they "rattle" when disengauaged (clutch pedal pushed in) I don't think it would make noise when the clutch is engauged.

 

[RSergeant]

I forgot to mention I have had this clutch for two years and this is the first time this has happened.

 

[KYOUNG]

I think your pilot bearing is shelling out so the input shaftnever quits turning!!Been there, done that. If oil leak the front seal is being whipped out also!

 

[gwagner]

you might also want to check the throwout bearing also. when mine went bad it was making noise, wasnt a grinding more like a rattle but the shifter and pedal would shake/pulsate like you were describing. good luck

 

[RSergeant]

Thanks guys I,m going to tear her apart this week and check it out... It is probably my fault, for not changing both bearings, my dad warned me, I failed to listen Once again learning the hard way... . The older I get The smarter He gets! Damn kids.