Serial number and model
I replaced the hydraulic motor shown because the sprockets and chain were worn sprocket welded to the motor shaft. The motor also had a whirling sound to it and got worse the higher I raised the rpms and would eventually stall the engine. I still have the whirling sound and engine stall with new motor. Any suggestions would be greatly appreciated.
The hydraulic pressure is to high. No hydrauilc motor should stall an engine, thats why they have relief valves on the motor and pump.