Transmission Questions
 

It's been a long time since my last post.

I have a GT 2000, and it started to leak transmission fluid. I messed around with it today after cutting grass, and the source of it seems to be coming from above the plate that actuates the bypass valve to allow tractor to be pushed in neutral. Between valve and plate there was a lot of built up gunk. I cleaned it, and pushed the plate upwards several times to actuate the bypass valve. It seemed to stop the leak for now maybe the fluid cooled and flows less. Could the built up gunk push or caused the valve to leak? About 6 years ago, the valve was stuck, and I was able to get it moving again by taking it out. It was stiff. Any thoughts? Also does anyone have suggestions on transmission fluid that's cheaper than Cub Cadet transmission fluid for this tractorHydroGear? Thanks.

There are a swag of posts on here about Hydrostatic oil
Oz

This should be the manual for your transmission. It explains your options for oil.

https://www.hydro-gear.com/wp-conten...N-50327_P6.pdf

So I took the nut off of the bypass valve and replaced the o-ring around it with a HNBR o-ring from an assorted pack from Harbor Freight. Hopefully, that will stop the leak. I chose that type of o-ring due to its higher temperature range, but it looks like the one I replaced was a run of the mill rubber o-ring. The HNBR o-ring was harder and less elastic. I wonder if I should have just put a regular rubber o-ring in instead.

Well, the leak is still persistent, but it's somewhere below the bypass valve. At some point, one must know their limitations. I had the dealer come get it, but it will be several days before I know anything. Meanwhile, the grass is growing like crazy.

Well, I got my tractor back from the dealer. I was told the bolts holding the transmission pump to the transmission housing were loose, and upon tightening them up, the leak stopped. The service manager said he's seen this on more then one occasion. The dealer ran it Friday and today to make sure that fixed the problem. I imagined that issue could have caused some serious problem if the bolts came completely out.