[SteveG]

Hello all,

My 337A with the all hydraulic power pack has developed a fluid drip from the priority valve which vents to the exterior. Guidance from anyone with experience in remedying this problem would be greatly appreciated. Rick Cox of Cox Airparts has quoted me $2450 for an overhaul and is unwilling to repair as necessary. This seems like an awfully expensive o-ring replacement but considering the work required to r&r this unit I certainly do not wish to do it more than once. That would seem to preclude a salvage yard part of unknown condition. Anyone else attempted a field repair and how did that go? Any and all insight gratefully received.

Regards, Steve G.