Going to need a new clutch in my 69 diesel synchro 4020. Was wondering if someone could educate me on the pros and cons of each type, button/fiber? It currently has a button in it. The tractor is going to be used to mainly pull a 6 row planter and a harrogator/ 12 field cultivator, so no primary tillage anymore.
- Thread starter T-Nason
- Start date
Bob Bancroft
Well-known Member
- Location
- Aurora NY
I don't like button clutches as they cause so much wear on the flywheel.
tomstractorsandtoys
Well-known Member
Ag Parts Ltd. sells what they call a smooth engaging button clutch and I have installed a dozen or more of them. It has thick and thin buttons that allow the disc to flex just a little for smooth engagement. They still offer the fiber disc but will not give any warranties on them as to many 4020 have twisted the centers out. I twisted a center out on my 4020 years ago. On my narrow front 4020 that gets used as a wagon pulling tractor I am going back to a fiber disc as the tractor is a little to jumpy when backing wagons. Also when doing a clutch job replace all the springs as well. Ag Parts and many other venders sell the complete kits with everything new or remanufactured. Most shops are going this route. I have a 3010 to do this week. Tom
showcrop
Well-known Member
I don't think that there is any question from my experience that you will get more of those little cracks in your flywheel with a button clutch. HOWEVER, in normal use as you describe, I think that the increase in wear will be insignificant. My use was as a puller slipping the double disc clutch to start the sled in 6th gear.
Fixingfarmer
Member
Fiber is smoother. Its what I put in for a hay mowing tractor. Pullers like the button supposed to dissipate heat and holds up to about anything. Ive pulled button clutches out where I probably could have put the disc back in but the flywheel needed surfaced badly but more because of wear than heat it grooves them but you see less of the heat cracks. The 2640 I just got done with today actually this was the case. It got a fiber and thats what I usually pick. Doesnt really matter which you you use they are interchangeable close to the same price and will last a very long time.
Muir hill 101
Member
I just put a button clutch in one its just as smooth as the fiber one was on loader work
Muir hill 101
Member
I was worried about the button clutch its every bit as smooth engaging as the fiber one
Until last fall I had no idea what you were asking about, and still know very little...
My ford 5200 had the clutch wear out. Neighborhood good mechanic replaced it, it wouldnt release well in just 25 hours use when warm.
They replaced it, under warranty.
5-6 years later, last year, it was slipping so bad I was down to 3rd gear to finish planting. Thats way too few hours to wear out a clutch.
They took it apart, and he said they put in a button clutch this time, supposed to be better. He said the failed clutch wasnt really wore out, it just slipped. Wouldnt lock up. Could still see the surfacing marks on the flywheel and was pad left of the fiber clutch, but they wouldnt lock up.
So, I have a half year on the button clutch, it seems to work good for me.
Paul
My ford 5200 had the clutch wear out. Neighborhood good mechanic replaced it, it wouldnt release well in just 25 hours use when warm.
They replaced it, under warranty.
5-6 years later, last year, it was slipping so bad I was down to 3rd gear to finish planting. Thats way too few hours to wear out a clutch.
They took it apart, and he said they put in a button clutch this time, supposed to be better. He said the failed clutch wasnt really wore out, it just slipped. Wouldnt lock up. Could still see the surfacing marks on the flywheel and was pad left of the fiber clutch, but they wouldnt lock up.
So, I have a half year on the button clutch, it seems to work good for me.
Paul
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