Another deere 4310 question

[csnow]

Just installed the 3rd valve kit and power beyond today and notice I had a little leak under the seat. it appears to be coming from the left side rockshaft control valve cover, in the area where the ABC selector is. According to the the parts diagram there are a couple o-rings in there. has anyone came across this before. I am hoping maybe just the o-rings are leaking and not the valve.

 

[csnow]

Went ahead and tore into it tonight after the gatherings. i took the rocksaft control valve cover off and it had oil it. I went ahead and took the control valve off and replaced the 3 o rings which all 3 seemed fine. I did notice towards the back there was a hole with a pipe in there, a vent tube maybe? maybe this tractor has been overfilled or it gets up there on steep inclines? the only other thing it could be is the actual roack shaft valve leaking.

 

[MF283]

Hopefully that's not the case & the O Rings do the trick.