When idling in neutral I have a loud rattling in my 1947 Cub that goes away when I put the tractor in gear. I do not hear it when moving. It shifts fine. Does this sound like the throw out bearing? Sorry to be stupid, but should I panic or just live with it? Can it be adjusted? Thanks for any help.
- Thread starter brooksie
- Start date
Dave H (MI)
Well-known Member
Is it coming from up at the rear of the engine in the bell housing or is it by your feet near the clutch pedal?
Dave H (MI)
Well-known Member
Forgot to ask...does it go away when you depress the clutch pedal?
Janicholson
Well-known Member
If it is near the shifter, it could be the coupling at the trans. If it is farther forward, it could be a clutch issue. If it is in the trans, it might be a front main input shaft bearing. See the online parts diagram caseih,com Jim
That driveshaft is about three feet long and 1" in diameter. Any vibration can induce metal fatigue and snap the shaft near the front or rear splines. There is no center bearing to limit the vibration. Fix it now or fix it later at a higher cost.
I'd be looking at transmission bearings.
I'd be looking at transmission bearings.
John M
Well-known Member
- Location
- Nunyafn business
What coupling?
John M
Well-known Member
- Location
- Nunyafn business
Question, are you holding the clutch in when its making the racket idleing?
Dave H (MI)
Well-known Member
Don't know about the volume of it but if it is coming from where the pedal is there is a bearing for the input shaft there...I am in the process of replacing one right now for the same reason. Mine just makes a grinding noise. If it is coming from up by the bell housing I would check the throw out bearing as suggested. The first thing I would do is isolate where it is coming from as that will tell you a lot. If you have to look at the pressure plate and make adjustments I am thinking you are talking about a front end split. Time consuming but not difficult. I was lucky...I got to split mine at both ends!
Challenger
Member
If you have adjusted the clutch pedal so it pushes in the the three fingers too far, the TOB will make contact with the fingers or the adjusting nuts which will make a loud racket. You may need to adjust the fingers so they are farther out toward the TOB so the bearing does not need to go so far forward to disengage the pressure plate.
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