Z-134 rebuild question. How do you remove the rear main

TwinDad

Member
Hello All,

I bought a MF 2200 Forklift which ran alright but was having issues chewing up the distributor gears. I thought it might be the governor turns out someone stripped the threads on the cam. I pulled the head and since the cylinders looked bad I figured I would rebuild it. Not sure if the forklift was built this way or if someone got happy with a welder but the engine can't be pulled without lifting the steering axle over the radiator supports and since I didn't have a way to do that I'm doing an inframe rebuild. I've got new main bearings in the front two mains already but I can't get the rear main to come apart. I tried using a slide hammer to pull it out but no luck(using the oil pan bolt hole). Do you have to pry them out? I did take the two small bolts out of rear main and have the main bolts out as well. Been trying to remove as much packing as I can but that is very slow going and wanted to know if I am missing something. Helped my dad in several engine rebuilds but this is the first time tackling on my own. Never ran into this issue before. This machine has the instant reverse transmission in it if that makes a difference. I read through the manual but even though it says it is for the forklift it talks mainly about the tractor and doesn't discuss anything other than removing the bolts. Thanks for your help,

Matthew

PS. The previous owner was told the engine had been recently rebuilt. I don't know there was an inch of sludge in the bottom of the oil pan. The old rods and mains looked alright with some copper showing. Everything mic'ed out within tolerance, although the cam tunnel was close.
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Hello Twindad welcome to YT. There are 2- 1/4 inch
bolts (7/16 head) through the main cap that screw back
into the rear main seal
support. In the link open Section 1 for the cylinder block and look at number 58.
Edit: Oops did no read close enough. You have those bolts out. I assume the gasket on the rear main seal mount is sticking. Maybe you will need to drive a thin putty knife in between the main cap and the seal mount. That is if it is even an accessible location.
AGCO Parts book for MF 35 tractor




This post was edited by used red MN on 07/07/2023 at 11:51 pm.
 
(quoted from post at 23:43:41 07/07/23) Hello Twindad welcome to YT. There are 2- 1/4 inch
bolts (7/16 head) through the main cap that screw back
into the rear main seal
support. In the link open Section 1 for the cylinder block and look at number 58.
Edit: Oops did no read close enough. You have those bolts out. I assume the gasket on the rear main seal mount is sticking. Maybe you will need to drive a thin putty knife in between the main cap and the seal mount. That is if it is even an accessible location.
AGCO Parts book for MF 35 tractor

Thank you very much I'll have to try that.

Matthew


This post was edited by used red MN on 07/07/2023 at 11:51 pm.
 
You can't remove the rear main without splitting the tractor, removing the flywheel, undo the 5 screws holding the rear main seal, then you can remove the rear main cap.
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This post was edited by ptfarmer on 07/08/2023 at 07:44 pm.
 

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