[Terrh]

I've got a 1990's 1864 I bought last year in an effort to not have to fix my awful modern home depot-style mower every other time I mow my lawn.

It's got fairly low hours and is in nice shape, but I noticed that when I bought it that reverse was kinda slow. Still, it worked, and I don't have to reverse that often.

Lately reverse almost doesn't work at all, though. The fluid is fresh and to the fill line in the hydrostat unit. Maybe even a touch high, but not much.

It also seems to speed up on it's own going forwards sometimes.

I tried adjusting the linkage under the cover in the middle of the mower, but it didn't seem to improve anything and I think it's adjusted properly.

I'm maybe imagining things too, but I swear the pump has gotten louder recently. Almost sounds like it's got low fluid, but, well, it doesn't.

Any idea what to try next?