2-135 White tractor Remote Hydraulic Manifold Valve Leak

MinniMan

Member
I have replaced the O-Ring #39 Page 214 in the Agco parts book but it continues to leak a steady drip when the engine is running. The size of the O-Ring is 3/32x11/16. It doesn't show a metal back up ring like is found on the O-Rings between the valves.
This opening returns the hydraulic oil to the differential after passing through the remote valves. Is it under high pressure? Would putting an O-Ring and making a gasket work? I am not sure what else to do to stop the leak.
Thanks for any suggestions.
 
I would first experiment with the Ag-Co equivalent part number. It may have been designed using a different compound.

I have never been successful using anything to help a failing o-ring. A good seal supplier can give you an o-ring several thousands larger in diameter which may be all you need. Or, a totally different compound like teflon.
 

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