grinding gears

[hearnc843]

A friend of mine was using my 175 today, I was nearby while they were using it. I heard a grinding noise coming from the transmission and immediately ran over and shut
it off. They said that was the first time they had heard the noise while using it.

After starting it back up, I wasn't able to shift it into gear. The clutch wasn't fully disengaging. I adjusted the linkage for it and maxed it out. It was near the
full throw of the linkage, and only added about 1/4 to the travel. That was enough to get it into gear and get it back and parked.

I took off the fill cap for the transmission and ran it for a bit to inspect. The clutch does not disengage fully when I press down on the pedal, I can still see the
transmission spinning. If I slam down real hard on the pedal, it will disengage and stop spinning for just a second, but that's it.

I am assuming I need to split and put in a clutch, but is there anything I can do in the meantime to band-aid it? Like I said above, I have the linkage maxed out. I
had just cultivated a field and was planning on putting down a few bags of K31.

 

[ih706]

First I'll say I'm not familiar with a 175 Massey, but I should know a few things about clutches in general. My first thought after I read your post is that I would guess one of the coil springs in the clutch disc dislodged and is basically binding in between the clutch disc and the flywheel.

As far as the clutch disc lining just being worn out, it shouldn't cause what you are experiencing. As the clutch disc wears you lose free play in the clutch pedal and the clutch should release more.

Anyway another interesting thread I hope you keep us posted.

 

[hearnc843]

Ok thanks, that makes sense now. I tried starting it up again and the grinding sound came back. Probably a spring like you said.

Does anyone have any thoughts on aftermarket vs AGCO clutch kits? I see this site sells them for around $350 with shipping. I would assume an AGCO part would be $700-800? Is it worth the extra bucks?

Also how would I know exactly which clutch I would need? I have the 6 speed without multipower. Its a 1973. The differences in the kits that I can see on this site are 11 vs 12 clutch disc, and medium duty springs vs heavy duty springs. Is there a way to know before I take it apart?
175 Clutch

 

[Jim.ME]

The AGCO parts book for the US 175 tractors only shows 11" clutches for both live and independent (split torque) units. They do split both types into early and late production but don't give a serial number break. It maybe a case of the late production clutches sub for the early ones now, but I haven't found that stated in the early production clutch pages.

If you read the descriptions closely it appears the 12" clutches are for the UK versions.

Not to take business from this site but it wouldn't hurt to ask your AGCO dealer and know the cost for certain.

 

[hearnc843]

Ok thanks. I called my local Massey dealer earlier, and he said that AGCO doesn't sell a complete clutch, but rather all of the individual parts. I would have to disassemble and replace parts as needed, so I would have to split it before ordering. I am kind of torn between going with an all new after market clutch that will be a simple bolt on part in order to save time. I am sure I will need a set of springs, and both discs at the least, and I would imagine that getting those from AGCO would
already get me pretty close to the cost of an aftermarket whole assembly.

He is supposed to call me back tomorrow with a full price list of the AGCO parts to build an entire new clutch assembly so we will see...

Has anyone put in an aftermarket clutch on any of the 100 series tractors? Have they been decent?

 

[ih706]

If I was you I would certainly tear it apart first and see just what damage you got and what parts you need. I see they have a brand new clutch disc on Ebay for 51.00 plus 9.95 shipping. This is a fiber disc, Do you have a button type disc?

Anyway good luck with it and kindly keep us posted.

 

[jvin248]

You may only have a worn throw out bearing and even a worn bearing support that the clutch actuates. There are two springs on the older tractors and probably yours that keeps the tension on the clutch pedal and is hooked to that bearing support. You still need to split the tractor. Check out youtube for a few tricks on how to get the tractor apart, repaired, and reassembled. I used a roller dolly on a level cement floor to keep alignment and get the split back together. Get the clutch alignment tool, very useful.

There is an inspection plate bolted under the belly of the transmission that you may be able to see up into the tractor before splitting it apart. That may tell you a lot about what you'll find in there.

 

[MKinON]

Had a similar problem on a 30 Industrial recently. One of the pins fell out of one of the release levers at the pivot point, so pressure plate wasn't retracting on that side. It was easier just to buy a whole new clutch. Check the release finger height during install. They were set quite open and I set them tighter as per info here and elsewhere.

 

[hearnc843]

I called another Massey dealer and they informed me that AGCO doesn't offer the clutch parts. He has an aftermarket clutch kit (just like the one on this site) that they install on older Massey's at their dealership, and says they haven't had any issues. The only thing I needed to know is if I have 10 or 25 splines on my input shaft, and that the only way to know is to split first.

I was hoping to do this all in one weekend, but oh well, not the end of the world. I will keep this thread updated and try and document the process.

 

[hearnc843]

Got it split yesterday, it turns out one of the pin bolts that holds the fingers came out, and another one was half out. Found one it on the bottom of the housing, just laying there. The cotter pins at the end of these bolts must have rusted off. It put a big gouge in the transmission oil return line, so that will have to get replaced too.