Re: 641 PowerMaster with Loader-Hard Steering

Pappy

Well-known Member
I posted the picture first by mistake. Son has a Ford 641 Workmaster that he can not steer. With the front wheels blocked up and off the ground, he can steer it easily with the engine turned on or off. With the weight on the wheels, it is almost impossible to steer. It does have power steering that has oil and seems to be working. Could the spindle bearings be binding up enough to cause this problem? We need suggestions. Thanks!
 
Could be the bearings on the spindle. Lift one wheel up at a time to see if it's one or the other. One of my bearings was missing all of the balls and made that wheel very difficult to turn. Bushings may need grease too.
 
Some days I can't get my facts straight. The Ford is a 641 WorkMaster, not a PowerMaster.
Probably would not make a difference in the steering problem.
 
You can check your pump pressure with a tee inline for a pressure guage.Should be around 900-1000, I think.There is a filter inside your pump that may be plugged.After many years.The piston ring inside the cylinder could be worn to the point that the pressure bypasses.Also I have seen the cylinders rusty and grooved to the point that they can't hold pressure anymore.I have rebuilt many of these over the last 3 yrs or so and have all the parts on hand.
Bob Hunter, Pioneer Hydraulics, 5807 E Hayward Rd, Waukomis, Okla.73773,580-603-0063
 
Bob57 - you have parts to rebuild the sleeve pump? My drive block and sleeves are good (visually) but the end cap on the pump body were badly scored. I ended up machining it flat (pretty close). Pressure is way better, but still lower than it should be. Be interested in seeing if you can make it like it should be....
 
No, I have no pump parts.I concentrate on the power assist steering made by Bendix and repair those in my shop.Thanks, Bob
 

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