[RESOLVED] Is there a transfer case overflow?

[white90gsx]

I has pumping my tcase with new fluid today and I have a nozzle so it seals on the fill plug. I was filling then all of a sudden it was flowing from the top of the tcase is that were that round ball is and is that some sort of over flow?

 

[srumel]

The proper way to fill the t-case is to fill it until the fluid is level with the threads of the fill hole, on a level
surface. The hole in the top is likely just a pressure release port. As the fluid heats up, it expands, and
trapped air escapes through that hole.

 

[white90gsx]

I was doing that but the nozzle is made to stay in the fill hole so that probably built up the pressure.

 

[steve]

I guess the breather works.
I assume that after you disconnected the fill it drained down to where it should have been.

 

[white90gsx]

Yes...