I am doing some restoration on a late 60' or so MF 135. I had to do some work on the Hyd Pump. Replaced the cam blocks, the cam block follower the pump pistons and o-rings where we went into the pump.
We did all the settings for the linkage under the lift cover before reinstalling.
Pump pumps fine but, when both the Draft and the Position controls are moved toward full up position, the pump overloads, goes to knocking, foaming the oil in the reservoir and will choke the engine down. I really believe something would break if this was done at more than an engine idle.
We have pulled the cover back off several times, rechecked all measurements under the cover and the same results. I have talked to a couple of retired mechanics and so far no help. I am desperate to get this project finished. If you can help me please respond.
When either of the controls are left half way down the qudrant or more, the other can be carried to the top with no problem. And, it does not seem to matter which one is lowered and which one is raised in this way.
Farmguy
We did all the settings for the linkage under the lift cover before reinstalling.
Pump pumps fine but, when both the Draft and the Position controls are moved toward full up position, the pump overloads, goes to knocking, foaming the oil in the reservoir and will choke the engine down. I really believe something would break if this was done at more than an engine idle.
We have pulled the cover back off several times, rechecked all measurements under the cover and the same results. I have talked to a couple of retired mechanics and so far no help. I am desperate to get this project finished. If you can help me please respond.
When either of the controls are left half way down the qudrant or more, the other can be carried to the top with no problem. And, it does not seem to matter which one is lowered and which one is raised in this way.
Farmguy
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