Not having worked on one before first make sure you can actually buy that part then get it in your hands and look at it to see how its shaped and how it may possibly come outattached is diagram of regulator showing the safety valve seat. Can anyone tell me how to remove that seat? Has anyone here worked on one of these?
If the sealing portion of the seat doesnt look bad dont touch it then .if it chewed up mess with it your worst case scenario is buy a pump , if you dont feel comfortable doing what your doing take your pump and the parts you got to a shop that works on pumps.I already have the seat, and there is nothing to hold it in except tight fit, I think. My situation is that what I see in the chamber looks just like the seat, looking from the top. That being a chamfered seat. It actually looks like it already has a seat, but it could be destroyed by trying to remove it. I would hate to mess up what can't be fixed, and I don't need to put in another one on top of the original.
I am familiar with this clark pump/ regulator set up, it was used extensively in the Timberjack skidders. I would think a leak in suction would prone to be your issue. IMO concentrate on the gaskets between the regulator and converter and between pump and regulator and filter housing seals, and the shaft seal. Also the orings on plugs under the roll pins. As mentioned worn pump. Other wise all other possible suction leak are internal piping and gasket between converter housing and trans case.