Another weak hydro motor question.

[adsmith72]

I've read a lot of the post on rebuilding motors. Just want to check before I start. The right hydro motor will not spin the tires. It seems to drive ok but doesn't have power. The left side seems fine. It doesn't make any funny noises either. Its on a 642b, and has a splined shaft. Thanks

 

[Tazza]

If you swap drive motors over you can work out if it's the motor or the pump. If the problem moves it's the motor. They aren't hard to do, the timing is the only tricky thing. The Orings get hard and break apart with age. If it's just Orings, take the samples to a hydraulic shop, they should be able to supply new Orings at a fraction of the price of a complete kit.