450 Live Hyd pump leak

Jeff- IN

Member
My 450 has developed a leak at the hydraulic pump. It looks like the oil is coming out around the split to the front of the pump
as it sits on the tractor, and is also coming out around the bolt heads. Would the gasket that seals the pump halves be leaking,
or is something else going on. Is this something that is repairable, or do I replace the pump? Finally, is there someone that
rebuilds these pumps? Thanks, Jeff
 
You can put new saels and orings in them. But they are not 'rebuildable'.if the rotor/gears and pump housing is worn,repacement is needed.
 
Split for pump body to mounting flange has a big O ring. Probably can get one at a hydraulic repair shop or supply. Pump mounting flange to engine plate is a gasket. If it leaks there it could be engine oil or very little hydraulic oil because if the front pump shaft seal leaks it gets with engine oil and ends up in pan.
 
I guess I need to check farther. My local
CIH dealer said they couldn't get any pump
parts or even a pump
 

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