question, Its getting too expensive to keep pouring in the Hytran Ultra, it leaks out where the hoses for the front end loader attach to the tractor. There is a block that attaches over two ports with three bolts. they seal with o-rings which I have replaced. I can't get it to stop leaking, could something have warped and need machined????
case international 244 4wd compact
- Thread starter burman
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Kernopelli
Veteran Member
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- Oct 16, 2006
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- Carterville, Illinois
- Tractor
- Mitsubishi MTE2000D, Dig It 258 Mini Ex, Deere Z930A ZTR
I assume the block you're referring to is the hydraulic adapter that sits between the transmission case and the hydraulic relief valve. It attaches with 3 bolts, has a plug on top and two forward facing ports?
It is hard to imagine that this has warped. It usually takes a great amount of heat to distort something that thick and the hydraulic system doesn't come close to producing those temps. Pressure can distort metal as well but I don't see this as the culprit either. You can always try to check the mating surfaces with a GOOD metal straight edge and see if it remains flush over the surfaces.
Are you certain you are using the correct o-rings? Using something that is "close" to what's needed won't cut it. These systems are under extreme pressure (about 2000psi on yours) and anything less than very tight tolerances is going to leak. If it is the correct o-ring, make certain you are tightening the bolts to the correct torque. If this doesn't help, try finding a slightly thicker (larger axial cross section) 0-ring and see if that won't do it.
It is hard to imagine that this has warped. It usually takes a great amount of heat to distort something that thick and the hydraulic system doesn't come close to producing those temps. Pressure can distort metal as well but I don't see this as the culprit either. You can always try to check the mating surfaces with a GOOD metal straight edge and see if it remains flush over the surfaces.
Are you certain you are using the correct o-rings? Using something that is "close" to what's needed won't cut it. These systems are under extreme pressure (about 2000psi on yours) and anything less than very tight tolerances is going to leak. If it is the correct o-ring, make certain you are tightening the bolts to the correct torque. If this doesn't help, try finding a slightly thicker (larger axial cross section) 0-ring and see if that won't do it.
