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Splitting a TO-35

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jasonelkins

02-06-2008 09:44:40

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I wrote in a while back about my tractor making a weird noise after putting synthetic oil in. Well, It had spun a couple rod bearings and messed up the crank pretty good. After some consideration, I have decided to take this bull by the horns and split the tractor and rebuild the motor. Unless I can drop the crank without spliting the tractor. I think it will be a good learning experience. I am anxious but leary to get started.
Can anyone tell me what to do and what not to do. I am concerned about the weight of the tractor and motor. I will be doing most of the work by myself with little if any physical help from anyone. After I take the hood and gas tank off, do I just unbolt if from the bell housing or do I take the front end off then the motor? I have access to jack stands an A-frame with hoist and cherry picker.
Thanks in advance

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jasonelkins

02-07-2008 04:43:35

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Re: Splitting a TO-35 in reply to MF#1, 02-06-2008 09:44:40

Thanks for the help so far on splitting the tractor.

To answer a few of the questions, I am in Winfield Kansas. There was nothing wrong (to my knowledge) with the tractor when I purchased it 6 months ago. I purchased it from a friend that aquired it when he purchased his house. So he knew little about the history of it. As best I could tell the previous owner just used it to mow a 5 acre lot adjacent to the house. My friend opted for a zero-turn mower (60" Dixie Chopper).
I was trying to do some preventative maintenance. I strted with the engine (complete tune-up and oil change) the was going to go to the tranny & rear end. After this was completed I was planning on rewiring it and getting it ready for paint. After I changed the oil I was dragging my drive way with the blade. This may have taked 30 mins at low RPM'S. It was running fine, maybe even a little smoother (after the tune-up). I was off the tractore adjusting the blade when it started "squeaking." I ran the motor maybe another 5 mins before shutting it off. It would squeak when the motor was being cranked over then wouldn't even turn over at all. When I drained the oil it was pretty dark for only have being ran for 30 mins. When i pulled the caps off the connecting rods the first two were not oily at all. In fact, metallic dust came out. The crank journals were not oily either. Everything was dry as a bone.
Just to answer any future question, I drained out approx. 1 1/2 gallons of oil this last time. There wasn't any sludge what-so-ever inside the motor. I could see on the sides of the block where the alluminum from the bearings was being "slung" on the sides. The #1 bearing was the most severly chewed up. The #2 was welded to the crank. Number 3 was the best then #4.
I feel that this happened because I used the synthetic oil. I am going to check out the oil pump. But why else would this have happened?

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Aaron Ford

02-06-2008 19:37:16

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Re: Splitting a TO-35 in reply to jasonelkins, 02-06-2008 09:44:40

Do not forget to wedge the front end. If not you will have a several hundred pound variable to contend with. I jacked under the engine to pull the front end, then under the bellhousing to pull the engine. Where are you located?

I am also curious about the synthetic oil. Where you trying to fix a problem, or do you feel it caused the problem? I have used Mobil1 for years in my road cars, but I understand that anything could happen. I have yet to use it in my tractor due to the breakin period. I have yet to put it under a load. Just hauls me around and ticks off the neighbors...

Aaron

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Fred T. Hart Jr.

02-06-2008 17:31:34

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Re: Splitting a TO-35 in reply to jasonelkins, 02-06-2008 09:44:40

wish I could help you with breaking the tractor apart, but I have an oil question.

were you ever able to determine what type oil had been used in the tractor before you put in the synthetic oil?

I have seen a number of request/questions from others in car/truck/tractor forums about changing to synthetic oil in older or high mileage vehicles. Some say no problem others say they would not make the change if older vehicle is running fine.

So I was wondering since you had a motor failure in an older tractor after changing to synthetic oil, do you think it could have been cause from placing synthetic oil in the old tractor?

Sincerely,
Fred

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Amarillo Doug

02-06-2008 13:08:12

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Re: Splitting a TO-35 in reply to jasonelkins, 02-06-2008 09:44:40

Jason,When I worked as a mechanic for For MF I always placed a Stand under the belly of the trans and raised the front end off the ground and pulled the front axle first.Then Tie your cherry picjer onto the engine and remove engine from bell housing. Hope this helps Doug

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