engine block reconnection to clutch housing mf65

rich o · Jun 5, 2012

does anyone have any good tricks to reconnect the block adapter plate to the clutch housing on my massey 65. the block is all lined up nice and square but just wont go the last inch, i cant tell if the clutch spline is catching on something, ive turned the crank in hopes of mating the spline but no luck, there has to be a trick or easier way. thanks

El Toro · Jun 5, 2012

Are there dowels on there for alignment? If there is I would coat them some lubri-plate or grease. Hal

rich o · Jun 5, 2012

i still have about 3/4'' til the dowels engage but the bugger just wont go, i thought it was possibly in just a bit deeper

Gene Davis (Ga.) · Jun 5, 2012

Did you install the clutch disk in the correct orientation? Some are marked,"this side to flywheel". The splines can go in correctly, but the shaft will hit the disk if in wrong Also are you sure the splines are lined up in the engine part? Try putting the transmission in gear and jacking up a drive wheel and see if it will turn if it turns the splines are not engaging. also,did you use a pilot shaft to line it up. Make sure the pilot bearing or bushing is on corretly

Welding man · Jun 5, 2012

2 stage clutch? If so,you have 2 set of splines to line up . Did you replace the pilot bearing. Did you check to see if it fit the shaft before installing in the flywheel. Did you check the clutch discs on the splines before assembly. Do you have alignment pins screwed into the transmission housing to help line everything up. Put the PTO in ground speed and turn the shaft. Nothing to it after about two or three clutch jobs a month for the last 30 years and I never use a pilot shaft, just eyeball it.

rich o · Jun 6, 2012

ive replaced the pilot bering and it was identical to the one i removed, i also took care to make sure the 2 clutch disks were centered when i put the clutch assembly back together, i had reused the existing clutch disks because they still had plenty of life to them

showcrop · Jun 6, 2012

Try backing it off an inch then bring it back turning the crank as you go. If you have it too tight it can't slip to find the right alignment. Are you sure that they are aligned in the same direction? Often the front is a little lower than the back, and they can't go together if they are not in the same plane. you may need to put the tires of the moving end up on boards.

rich o · Jun 6, 2012

welding man, good advice, backed it off visually lined up splines and grooves, used longer bolts to act as guides walked it in slowly, but with only about a pinkys width left ,heard a cracking sound and could no longer turn the crank. backed it ann off and pulled the block assembly away and found that i cracked the clutch plate, what a mess, i did not want to disassemble the clutch, you sound as though you have some experience under your belt, what do you figure now, is it time for me to find a pro to bail me out?

Dieseltech · Jun 6, 2012

Best way I have found to turn both shafts for spline alignment, place PTO shift in ENGINE drive, not ground drive for PTO input to turn with a punch in hole. Ground drive will mesh PTO shaft with pinion shaft, you don't want that. To turn transmision input shaft, place Hi-Lo shift in neutral, main shift in either first or reverse. Then with trans oil fill cap off use a long bar to move gear teeth as needed to turn shaft for spline alignment into clutch disc spline. Main thing is to get both halves straight and square, will roll together when shafts are both aligned by turning. Usually trans shaft will mesh first, then PTO. Have had tractors that went together quickly, and some that needed time, just do not force anything and you will get it rolled together.

Bob from Australia · Jun 6, 2012

Go to the left side of this site.

Under Research & Info, open Articles and look for MF 35 (and up) Tractor Assembly Notes by Jack in NB

Jack tells you exactly how to do it; really helpful article.

engine block reconnection to clutch housing mf65

rich o

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El Toro

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rich o

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Gene Davis (Ga.)

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Welding man

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rich o

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showcrop

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rich o

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Dieseltech

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Bob from Australia

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