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mf135 4-cylinder gas exhaust manifold removal

T

texasman500

Member
I just bought an mf135 4-cylinder gas tractor. The exhaust are leaking. I cannot get a socket or wrench on some of the nuts. Have tried many. Takes a 9/16". Does anyone know what wrench to use to get into these tight spaces. Thanks
 
Good luck. We had to grind the outside of a socket down paper thin to get into the nuts.

Also, be careful which exhaust manifold you buy, the generic ones sometimes require a whole new exhaust system and
muffler routing.
 
Thanks. That's what I thought. I wonder if anyone makes a tool that will do the job? So far I haven't found any discussions about this problem. A few talks about taking them off, but never mentions this problem.
 
I just changed out the gaskets on a 175 gas Perkins. I had to use crows foot on some and had to make wrench for others. Grinder and heat are your friend. Two of the exh nuts, I just torched off and after removing manifold, welded a nut on the remaining stud and turned the remnants right out and replaced with new. One has to innovative when doing these projects. In my case, the factory put them on seperately. First the intake and then the exhaust and then bolted the two together at heat stove. Pretty easy to get all the nuts that way. I couldn't get mine apart from ea other once off so put back on as a unit and made wrenches that worked. I made a thin wall box end out of an old chain saw bar wrench! Got ta do what ya got ta do.
 
Good Luck I did one and only one and will never attempt another, I also wonder what type of tool they used at the factory or dealerships for that job
 
(quoted from post at 16:14:05 03/27/18) Thanks. That's what I thought. I wonder if anyone makes a tool that will do the job? So far I haven't found any discussions about this problem. A few talks about taking them off, but never mentions this problem.
Click to expand...

My son gave me a set of "nut grabbers" a few years ago. they are kind of an inside out EZ out. They will grab a nut with no flats and turn it right off. They came from Sears but that was before they sold Craftsman off.
 
I went to a Massey Ferguson dealer that only works on older tractors. The mechanic said to get a 1/4 x 9/16" 6 point socket. I ordered one from Sears. Used Freeze Off first for about a minute or two on each nut. Then I took penetrating oil and soaked each one. Struck the nut with a bar. Not too hard just enough to help it loosen. Had to get a 1/4 drive extension so I could use a ratchet on it. Kept working with it until it broke loose. Had to take the heat shield off first. Then on the middle two nuts on top I used an open end wrench. Everything came off without any breakage. Got to have a lot of patience. The 1/4" drive X 9/16" socket is shorter than regular sockets. The mechanic showed me the difference in the lengths. These are the same exhaust manifolds that are on the TO30. I hope that helps if someone has the same problems.
 
(quoted from post at 14:40:06 04/04/18) I went to a Massey Ferguson dealer that only works on older tractors. The mechanic said to get a 1/4 x 9/16" 6 point socket. I ordered one from Sears. Used Freeze Off first for about a minute or two on each nut. Then I took penetrating oil and soaked each one. Struck the nut with a bar. Not too hard just enough to help it loosen. Had to get a 1/4 drive extension so I could use a ratchet on it. Kept working with it until it broke loose. Had to take the heat shield off first. Then on the middle two nuts on top I used an open end wrench. Everything came off without any breakage. Got to have a lot of patience. The 1/4" drive X 9/16" socket is shorter than regular sockets. The mechanic showed me the difference in the lengths. These are the same exhaust manifolds that are on the TO30. I hope that helps if someone has the same problems.
Click to expand...

That is good information. Thanks.
 
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