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Massey Harris & Massey Ferguson Tractors Discussion Forum
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Splitting my MF135

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Bill Darte

08-29-2005 11:46:13




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OK...finally back to my project.
I have a '70 MF135 Perkins Gas with 8 speed.
Everthing is off and I think I should crack the tractor to look at the tranny. I had a 'clatter' in it for sure when it was in low gear, reverse. Big Dean has suggested it might be a chipped tooth on the reverse gear which is somewhat insubstantial..if I remember his post.

Anyway. I also have a bit of oil that leaks from the weep hole.

Questions are: Do I change the 'rope seal' while I've got it split? What else?
Also, if I split it to check out the tranny...will I be able to see all the gears to inspect for chips? What else to I look for or tests to perform while in there? Are there any 'gotchas' during this process I should be careful of?

I have no experience. I just expect to look for obvious problems, but can't guarantee that even obvious problems to some of you would appear abnormal to me.

Thanks for your input.

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Willy-N

08-29-2005 14:11:06




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 Re: Splitting my MF135 in reply to Bill Darte, 08-29-2005 11:46:13  
You will need to remove the Flywheel to get at the seal at least on the Perkins AG3 152 engine. Very heavy if the 2 stage type and watch when the last bolt comes out it is barely hanging on the crank!! I would put a floor jack under it and 2 people if you can to remove it. I did mine with out a jack and by myself and it was a BEAR to remove the last bolt and grab it to set it on the floor! Once you remove the transmission shifter cover & steering unit you get a nice view of all the gears. Sorta a complicated Tractor for your first one to get into if it is a MF 135 Orchard. I hope you have good manuals to get it right when it goes back together. PS You do not need to split the tractor to look into the transmission but you DO have a lot of parts to remove above the shifter to get it off! This is one reason I am saving the complete rear end assembley including the transmission so I can swap it out as a unit if problems acure. Parts are big bucks inside the transmission at least on the Orchard Model!! Mark H.

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Bill Darte

08-29-2005 17:31:45




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 Re: Splitting my MF135 in reply to Willy-N, 08-29-2005 14:11:06  
So what I'm hearing is that 'expertise' AND good manuals are required to split this tractor for inspection and repair of the tranny. I have the MF manuals, but no expertise.

Sounds like if I'm gonna split the tractor, I might be prepared to put a new clutch in as well. Maybe I'll just put it back together and see how it really performs....it's new to me and I've only just driven it a few short outings around the property and in replacing plugs, points, etc.

Seems a shame to put it all back only to find it needs to be split. But maybe that's best. I can take it 'whole' into someone who has the experience if need be.

Thanks for your perspective and yours or others are still welcome.

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Willy-N

08-29-2005 17:53:08




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 Re: Splitting my MF135 in reply to Bill Darte, 08-29-2005 17:31:45  
I am not saying you can't do it. Mine has been dripping oil out of the weep hole for years and will continiue till I have another reason to split it. If it was a 8N Tractor it takes about 30 mins to split one and a few hours to tear it completely apart done many! The MF 135 is a much better built tractor and harder to work on due to so many improvements meaning more things to deal with. I do most of my Tractors by memory as I take them apart to fix also have taken enought apart that by looking at it I pretty much know what to do. Never forse anything. Like the front timing cover there are 2 bolts you may miss cause there hard to find. The oil Pan is the same way 2 bolts on the rear that are not easy to see but need to come out to drop it. Little things like this if you are not good at takeing things apart may get you in over your head. To pay someone to stop that leak will cost you several Barrels of oil and if you don't use it much it is only cosmetic and a need to check your oil offten as you should anyway. Now as far as the clunk or bad reverse that could cause you lots of problems not fixing it. It is not a leak lt is a mechnical problem that will only get worse and may cause a major destruction in the trans if things let go and multiply into a repair cost way more then it is now and stop the tractor dead. If you got it taken apart some now go ahead and look in there. If you find teeth chipped flush the trans out and remove them fron the case, look to see if it is a type of problem that will grow as time goes by. Not sure which MF135 you have a clutch is around 280.00+ dollars and a disk set could run you 100.00+ and if there not wore out why change them. Look how thick they are first. The 135 transmission is pretty open inside. I will take you a picture of inside mine to show you what your getting into. Lot of work to do but if you like to work on them like I do then go for it. If you have plenty of time do it right this tractor will last a long time and give you a lot of work. Mark H.

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Willy-N

08-29-2005 18:13:23




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 Re: Trans Insides Picture in reply to Willy-N, 08-29-2005 17:53:08  
third party image

Here is a picture of under the cover. Mark H.



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supergrumpy

08-30-2005 11:21:29




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 Re: Trans Insides Picture in reply to Willy-N, 08-29-2005 18:13:23  
never had to take mine apart but sure appreciated the picture

guessing the the square shifter opening is R-3 and that other single one is Hi-Lo range



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Willy-N

08-30-2005 13:15:59




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 Re: Trans Insides Picture in reply to supergrumpy, 08-30-2005 11:21:29  
I haven't had to fix mine yet either but the picture was taken of my spare assembley. I have had mine stick in gear once a couple years ago but hasn't done it since. You right on the squares for shifting reasons. This is a nice clean spare Complete Trans, hydraulic pump and rear end assembley to have on hand. Mark H.



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supergrumpy

08-30-2005 15:40:49




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 Re: Trans Insides Picture in reply to Willy-N, 08-30-2005 13:15:59  
I sleep better having spares and even spares for the spares



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Willy-N

08-29-2005 18:15:10




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 Re: Another Trans Insides Picture in reply to Willy-N, 08-29-2005 18:13:23  
third party image

Close up down inside. Mark H.



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Willy-N

08-29-2005 17:53:01




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 Re: Splitting my MF135 in reply to Bill Darte, 08-29-2005 17:31:45  
I am not saying you can't do it. Mine has been dripping oil out of the weep hole for years and will continiue till I have another reason to split it. If it was a 8N Tractor it takes about 30 mins to split one and a few hours to tear it completely apart done many! The MF 135 is a much better built tractor and harder to work on due to so many improvements meaning more things to deal with. I do most of my Tractors by memory as I take them apart to fix also have taken enought apart that by looking at it I pretty much know what to do. Never forse anything. Like the front timing cover there are 2 bolts you may miss cause there hard to find. The oil Pan is the same way 2 bolts on the rear that are not easy to see but need to come out to drop it. Little things like this if you are not good at takeing things apart may get you in over your head. To pay someone to stop that leak will cost you several Barrels of oil and if you don't use it much it is only cosmetic and a need to check your oil offten as you should anyway. Now as far as the clunk or bad reverse that could cause you lots of problems not fixing it. It is not a leak lt is a mechnical problem that will only get worse and may cause a major destruction in the trans if things let go and multiply into a repair cost way more then it is now and stop the tractor dead. If you got it taken apart some now go ahead and look in there. If you find teeth chipped flush the trans out and remove them fron the case, look to see if it is a type of problem that will grow as time goes by. Not sure which MF135 you have a clutch is around 280.00+ dollars and a disk set could run you 100.00+ and if there not wore out why change them. Look how thick they are first. The 135 transmission is pretty open inside. I will take you a picture of inside mine to show you what your getting into. Lot of work to do but if you like to work on them like I do then go for it. If you have plenty of time do it right this tractor will last a long time and give you a lot of work. Mark H.

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Bill Darte

08-30-2005 05:33:48




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 Re: Splitting my MF135 in reply to Willy-N, 08-29-2005 17:53:01  
Oh, by the way. My tractor is an MF135 Deluxe. 3cyl Perkins Gas with 8-speed trans, 2 stage clutch, live PTO with ground and engine speed control, no auxillary hydraulics.

The tractor drove just fine in all gears, but made a clatter sound...didn't sound like anything 'substantial' was wrong or loose. I think I'll pull the shifter plate and take a look.



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Bill Darte

08-30-2005 05:28:48




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 Re: Splitting my MF135 in reply to Willy-N, 08-29-2005 17:53:01  
OK, gotcha...
I'm not totally incompetent as I built my own house and have done auto repairs for years....just never been into the guts of trannys and engines, so I'm a bit intimidated.
The pictures you provide are great. You say this is the view from the top with the shift plate off? Can you see ALL gears this way? Inspection is my primary motive. IF I find something that NEEDS fixing then I'll go after it one way or another.

I do tend to believe that once your into something, spending the extra money to make it right is worth it. I wouldn't replace a 'newish' clutch, but one more than half gone I would.

Again, thanks for your help and advice. Much appreciated.

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Willy-N

08-30-2005 08:04:45




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 Re: Splitting my MF135 in reply to Bill Darte, 08-30-2005 05:28:48  
Yes you can see all the gears. You may need a flash light and also need to turn the shaft to see all the teeth on the gears. When I split the 135 I parted out I saved my Clutch Assembley for a spare. The one I saved has 80-90% left on it but when the time comes which it will it will have a lot more than the old one. One thing I found out if you need parts NOW some of them are very high!! Tining cover 285.00, block 1,995.00, trans gears 100.00 to 300.00 each, main shafts up to 600.00 ect. This can be a big set back unless you can wait for a good deal which I can't during the winter. If I am down for a few days the cows get hungry and the snow blocks me from leaving home!! During the summer is when I fix it up so by winter it is ready to be hopefully trouble free. Tearing it down in -11 below zero is a real bummer but have done it befor on a few! Mark H.

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