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M HYD. PUMP IN FRONT

L

logancorner

New User
[b:4e8304f91e]Has anyone mounted a hydraulic pump in front off the crankshaft?
Talking to an old IH mechanic, and he said if you add a pump between the distributor I should change the cam gear with one off of a 400 because the are heavier and the reg. M gear may break under a load. So I was thinking of adding one on front.
Thanks Rich[/b:4e8304f91e]
 
Sure can be done.

Issues are that there needs to be complete replacement of the hand crank assembly. the boring and rebushing of the bolster base for either bushings/bearings or opening it up for clearance to allow a shaft to go through.
The use of a universal joint at the front of the crank is also a space issue. Making a drive from the crankshaft pulley to the U joint is pretty easy. It has been done, the fact that the M steering system uses that specific space is the hard fact.
If a person replaced the M steering with a wide front and hydrostatic steering, it might be a neat setup to machine out the casting, and mount a pump in the center of the lower bolster running straight into the crank W/O Ujoint. Just thinking out loud. JimN
 
Sure can be done.

Issues are that there needs to be complete replacement of the hand crank assembly. the boring and rebushing of the bolster base for either bushings/bearings or opening it up for clearance to allow a shaft to go through.
The use of a universal joint at the front of the crank is also a space issue. Making a drive from the crankshaft pulley to the U joint is pretty easy. It has been done, the fact that the M steering system uses that specific space is the hard fact.
If a person replaced the M steering with a wide front and hydrostatic steering, it might be a neat setup to machine out the casting, and mount a pump in the center of the lower bolster running straight into the crank W/O Ujoint. Just thinking out loud. JimN
 
actually any M after about 1948 has the heavier cam gear, not ex actually sure of the serial number off the top of my head. as for the other i dont think that you could do there is no room there for a pump. you could look at a PTO pump that would work and its an easy set up.

Andrew
 
Many different options, depending on how much hydraulic capacity and pressure you need. Also depends on how you are going to use the tractor. A cogged belt drive would be the easiest, provide the most power transfer, and have good longevity...

Chain drive works for slow-running use:
100_4221.jpg


Not sure what they are using for a u-joint, but looks like it works:
Hlivehydropump.jpg


Good for running power steering and a light hydraulic load - pressure is limited due to belt slippage:
almostfinished1.jpg


Not live, but certainly more capacity and pressure than the belly pump:
bellyptopump.jpg
 
i been toying with that idea too. i did some measuring, and if you remove the crank start unit, you can squeeze a pump in there, looked at some of the eaton pumps, and a couple will fit. also a log splitter pump. i figured to use a lovejoy coupling off the crankshaft instead of a u-joint, then run the hydraulic lines along the inside bottom of the frame rails. i think it would be a pretty slick setup. who knows, maybe somebody can put together a kit to retro fit these old rascals!!!!
 
If you remove the mud shield you will find a cavity in the casting behind the steering shaft. Facing the crankshaft is a fair sized acess hole with a smaller hole on each side big enough for a hose to pass through. I would think install lovejoy coupling on the crank shaft and put a pump in that cavity. I have been wanting to try that for a couple of years. Like has been said you would have to gut the hand crank parts.
 
228082 Is a mid 1950 serial number that is (from the archives) the break for strong gears and bolt pattern on an M. JimN
 
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