CRRRAAAAAACCCKK follow up

Vern · Feb 3, 2009

Ok, I pulled the top cover off the transmission but I can't see anything wrong. I bumped the starter a few times but didn't see anything missing. I even started it up, boy does the grease fly, & the ticking noise is louder with the cover off.
The "slinger gear" is complete with no signs of damage.
What next?

Vern

Janicholson · Feb 3, 2009

The oil needs to be drained down (or out) to allow the viewing of the countershaft gear teeth. The front of the trans has a continuous mesh set of gears (in front of 4th) that probably has a tooth missing. JimN

Jim Becker · Feb 3, 2009

(quoted from post at 22:09:38 02/03/09) The front of the trans has a continuous mesh set of gears . . . JimN

Not in a Super A.

Janicholson · Feb 4, 2009

You are exactly correct. But there is most certainly dammage. A piece of junk in the reverse gear and idler would slap them together pretty hard. If no teeth are missing, a serious investigation might show a foreign particle, or tooth dammage. A broken bearing race would make a more rapid ticking, I would think. Cleaning and hand rotation will shurely provide insight. Thanks for pointing out that it is not a split top shft trans. Jim

Janicholson · Feb 4, 2009

While going to sleep last night thinking of this I thought outside the box for a few seconds of conciousness. What if the drive coupling joint came apart in the torque tube. JimN

Jim Becker · Feb 4, 2009

He could try rotating the upper shaft manually with the engine off and the transmission in neutral. If the coupling is coming loose, there is probably going to be some free play. If the coupling is OK, it should be pretty solid.

If the trouble is there, I wouldn't expect the noise to be much louder with the cover off. So I guess it is on open question whether the louder he is hearing is enough louder to prove it is from inside the transmission.

So far, we haven't talked about whether there could be a noise source related to the PTO. I'm assuming this whole situation is going on with the PTO turned off, which eliminates most things PTO related.

I'm inclined to think a chip is imbedded in the oil slinger gear.

Hugh MacKay · Feb 4, 2009

Vern: I've been following this. Lay a section of plywood over open top of transmission. Get out my old stand by, cut off a broom handle, preferably one your good better half no longer uses. Start the tractor, and with one end of broom handle to your ear, place the other end against side of transmission, try different spots along transmission. By moving it around you will zero in within 2" of the problem. Believe me it never fails.

CRRRAAAAAACCCKK follow up

Vern

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Janicholson

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Jim Becker

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Janicholson

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Janicholson

Well-known Member

Jim Becker

Well-known Member

Hugh MacKay

Well-known Member

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