S 250 bobcat

[fixitservice]

Mt experience in oprearing and mechanical repair is around 35 years but this has me stumped.... My S250 runs half the wheel speed on the right i have had professional rebuilt drive motors and all 3 hydro pumps have been rebuilt by Texas drive . i have adjusted it every way i can . have even completely unhooked the linkage and run hydo with direct levers and it makes on difference. got a second drive motor and from Tevas drive and the same result. up to now every one says linkage issue.but let go of handel it stops no creeping allso it it runs the same reverse or forward. my exsperance on that is if slow in one direction it is ok in the other .that not the case it is slow in both . HELP any one seen this before in put is appreciated

 

[Joshatapp]

Is your machine a single speed or a 2 speed model?

 

[Tazza]

Is your machine a single speed or a 2 speed model?

That is very odd indeed, you have new pumps and motors, it should be all sorted.
What happens if you run the new motor on the old side? does it run slower too?
I got a new geroler for a motor once from a store, it was the wrong CID, it ran about half the regular speed and i was puzzled, but worked it out and the issue was fixed with the correct geroler.
With the levers on the pump, do they seem to move the same amount? almost as if one isn't moving far enough to pump all the fluid or the pistons inside are the wrong CID.
When did this issue start, after the pumps were done or just a drive motor issue?