4230 knocking steering column

1973 4230, when the tractor gets hot the steering
column will knock at lower engine rpms, speed it
up and it goes aways.. If I turn the steering
wheel a bit either direction it goes away. Its no
the front pump, it was rebuilt w/ new shaft and
bushings and coupler. Also has new trans pump in
the last 50 hours. The tractor does steer a bit
strange after roading for awhile. It turns good
left, but its slow to respond to the right
sometimes. It turns with little effort but its
like its behind to the right. I can have the wheel
turned all the way to the lock on the right and
the actual wheels will still be turning..
Sometimes it fine, no problems ever in the field,
only going down the road.. I am guessing orings in
the front steering motor? Could this leakage be
causing my knocking problem in the column? Or
should I just rebuild both and be done with it?
Thanks guys!
 
Parts look cheap, I will have to look in my manual to see how big of a job it is.. Anyone have any tips on doing this job? Thanks!
 
Yours will most likely have the old style valve, they are ornery to get out and will need a set up tool to calibrate it,and some one familiar with it. I have a way of bench testing them here,,But I'm in Central Ohio.
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Tim so you think its in the steering motor and not down at the steering piston? I should just rebuild both and be done with it.. I know my luck, do one and the other will need repair soon after..
 
Well if it's chattering at the dash I'm thinking you have some thing going on there, and worn o-rings in the valve will also cause it to "wander" on the road..
 

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