Now that I have the engine running in my 425 project. I get to test out the rest of the tractor. Had it running for about an hour the other day and tried pushing snow today. Seems to have loose or week hydraulic functions after it warms up. Reverse gets slower, the steering doesn't really work if the tractor is moving as well as the blade. Seems to be growling from under the seat. Levels are good and I put new hydro filter on. Thinking I have a weak pump.
I have to do some research / trouble shooting. Maybe theres a cheap fix.