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64 4000

F

fordtech

Member
Hi, have a ford 4000 1964 trans leak at coter pin in bottom of case, imnot a ford guy can any one tell me why it leaks here and do i need to split to fix thanks.
 
Cotter pin is there to vibrate and keep the hole clear so fluids can drain out. The short answer is "yes", you have to split it to get at just about anything in there. Not sure about rear main seal though.
 
Isn't that the weep hole for the bellhousing and if so, perhaps its a rear main seal on the motor that is leaking and draining to the weep.
 
That cotter pin goes into the bell housing. It's to keep the drain hole open so it doesn't get plugged with dirt and grease.
A drip there is fairly normal but the leakage is from either a rear engine seal or a front transmission seal. Oft times both.
You can usually look, feel, smell if it's engine oil or transmission oil.
Only by splitting the tractor and installing new seals can you correct the leak.
 
Thanks, looks like i need to fix a leak thats what i thought, splitting tractor also three point does not work, any thing to look for before taking apart ,hyd pump is good has loader on it and works good, nice little tractor just have not had time to work on it thanks .
 
Is the loader run off of a hydraulic pump that's mounted to the front of the tractor? If so, then that's totally separate from the pump that drives the 3 point lift, which is mounted on the right side of the engine back near the flywheel.
 
So you're saying that the loader is run off of the same pump that drives the 3 point lift, and the loader works good but the 3 point doesn't lift? If so, then there might be a diverter valve that's diverting the power to the loader and bypassing the 3 point lift altogether, but we would need to see pictures of the setup to be sure.

The reason I seem skeptical on this is that most loaders of that era were powered by a separate pump on the front of the tractor that was driven by a shaft off of the crankshaft pulley.
 
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