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Massey Harris & Massey Ferguson Tractors Discussion Forum
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MF 35 Dual Clutch Problem - Help

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Kurt Fuge

04-27-2004 06:20:18




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All,
I am having a strange problem with my MF35 clutch. I have had it for about 2 years and it just started where I sometimes can't get out of the low gears unless push the clutch all the way down and drop the 3pt/pto. I have good clutch (no slip) when I engage either in hi/low gears. And in high I do not seem to have the problem. I noticed this weekend that when the tractor was still cold, It worked fine, until it warmed up (about 1/2 hour), then I couldn't get out of low gears. I noticed too, it seems to have a lot of free spin when I have clutch engaged in neutual, then disengage, go to shift, and grind gears until they stop spinning, then put into gear. not pretty. after I got the tractor 2year ago, I changed the Hydro oil to what the MF dealer gave me, a really good 90 grade (gl-4?). after that, I noticed the free spin (sometimes). today's oil looks a little milky (maybe a little water leaked in?). The MF dealer said the problem was strange. Do I need a new clutch? new throw-out? both? or change the oil - and to what? Any ideas? thanks for the help - my trees thank you too!!!
kurt

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Ray,IN

04-29-2004 17:43:19




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 Re: MF 35 Dual Clutch Problem - Help in reply to Kurt Fuge, 04-27-2004 06:20:18  
I know impatience is a normal condition for humans, and I've got a bad case of it. Allow the gears to stop spinning before trying to shift into gear. Ferguson tractor transmissions have a quirk about them. When they get worn some they tend to lock in either 2nd or reverse, almost always when the operator trys to shift before the gears stop moving. Grinding the gears quickens the condition. I shift into the desired gear befor starting the tractor and use the high/low shifter for idleing, it seems to stop moving faster that the main gears.

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Kurt Fuge

04-30-2004 04:47:14




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 Re: Re: MF 35 Dual Clutch Problem - Help in reply to Ray,IN, 04-29-2004 17:43:19  
Thanks Ray and Jack, bob and henning as well. I knew the gear grinding was not good, but didn't know the full impact. I like to fix it right if I can. Jack, I am going to look tonight or this weekend, work and normal chores getting in the way. I'll post back good or bad.
thanks again for pointing me to 'Big Dean' and all the help
kurt



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Henning

04-28-2004 15:24:09




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 Re: MF 35 Dual Clutch Problem - Help in reply to Kurt Fuge, 04-27-2004 06:20:18  
If the splines on your transmission axle (from the clutch) are a little rusty, the clutch plate cannot move freely and it will tend to "stick". Or it could be that an adjustment would do the trick. Look at Big Deans website for details.



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Bob

04-27-2004 19:01:31




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 Re: MF 35 Dual Clutch Problem - Help in reply to Kurt Fuge, 04-27-2004 06:20:18  
The milky color is definately water contamination. Does this tractor have Multi-Power?



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Kurt Fuge

04-28-2004 07:08:58




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 Re: Re: MF 35 Dual Clutch Problem - Help in reply to Bob, 04-27-2004 19:01:31  
Bob, no multi-power that I know of - no multi-power dash level. just R,1,2,3 and a hi/low stick on trans. What is the effects of water contamination other then I know it is not good and could ruin the pump. The contamination is only slight - oil is only a little off milky color. Do you think changing it will help with the overall problem - I know it won't hurt. Thank for your insight and help!
kurt

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Bob

04-28-2004 17:17:27




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 Re: Re: Re: MF 35 Dual Clutch Problem - Help in reply to Kurt Fuge, 04-28-2004 07:08:58  
Have you tried ajusting the clutch linkage?



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Kurt Fuge

04-29-2004 06:34:07




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 Re: Re: Re: Re: MF 35 Dual Clutch Problem - Help in reply to Bob, 04-28-2004 17:17:27  
Thanks bob/henning, the MF dealer recommended the adjustment to me last week, tried it and did not make any difference. Big Dean's web site is pretty cool. A lot of good info, I am going to email him to get a copy on spliting the tractor - which at this point I'm trying to avoid. But I guess to look at the inside, I will have to split it. I was hoping an trans. oil change would do the trick. or some quick adj. Is there a good manual for tuning and adjustments? I have a service manual, but it only has sections rebuild the engine, trans, do the alignment, etc. but no details on timing, spliting the tractor, setting points, etc.
thanks

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Jack in NB

04-29-2004 08:39:05




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 Re: Re: Re: Re: Re: MF 35 Dual Clutch Problem - He in reply to Kurt Fuge, 04-29-2004 06:34:07  
Hi Kurt -

I've had the same problem on occasion. (I got my first 35 in '76, now running 8 units with the same clutch).

The problem is consistent with the traction clutch dragging when you attempt to release it. It's tight in there - the pressure plate moves only a fraction of an inch on release, and it doesn't take much for the disk to drag.

Our problems have been caused by four factors:

1. Wobbling clutch disk (1/8" runout on a freshly rebuilt one)

2. Bent centre hub (caused by trying to force the tractor together) - the boss on the clutch disk was pushed forward enough to rub lightly on the flywheel

(Both of these appeared immediately after reassembly, so are ruled out in your case.)

3. Rust on the splines (as mentined by Henning) - a possibility with limited usage.

4. Hinge pin dropping out of one of the three release levers (this can be checked by looking up into the bell housing through the bottom hole after removing the cover plate (if you don't have a loader fitted!))

There is another possibility, which I've been told about, but not experienced - yet!!! Clutch linings flaking or rivets popping loose allowing the lining to swell a bit.

There is no adjustment that I'm aware of that will correct this problem - unless you have 2-3" of free play, and you do not, if your PTO is stopping.

Big Dean's material is very helpful (and so is Big Dean!!!!! - he's helped me sort out some thorny problems), and there's an article on splitting and reassembly - in articles, to the left of this page - that I sent in a few years ago.

We use the I&T shop manual, but the MF shop manual is more comprehensive, and I hear comments that they have come down in price from the dealers.

Good luck!

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Bob (in Aus)

05-03-2004 21:31:24




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 Re: Re: Re: Re: Re: Re: MF 35 Dual Clutch Problem in reply to Jack in NB, 04-29-2004 08:39:05  
Kurt

I had similar clutch problems with my 35X a few years back

After advise from Jack in NB and Big Dean I split the tractor and replaced the clutch.

I am a 'shade tree' mechanic only, and was concerned about my ability to do the job. I had no choice but to tackle it, as our farm is many miles from anyone who services MF tractors.

In the event, the job took only a couple of hours (and AUS$400 worth of new clutch from Bareco). You need to have a clutch alignment tool as described by Big Dean and you need to be very careful sliding the tractor back together�use Jack's instructions.

Overall it was an easy job and made a hugh difference to the operation of my tractor.

Bob

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