Shifter seal fluid blowby

[Oaf]

I fired up my 650 finally, and ran it for a while. Tranny fluid came up and out the shifter tube. This happened when I first got it a couple months ago and the seal at the top of the tube was hard and worthless, so I popped in an Oring below the spring to see if that would work.

When I drove it for 1/2 hour the fluid started leaking out again, and when I stopped it I could hear the pressure blow past the Oring for a minute or so.

If I have no seal, it leaks; if I have the old seal, it leaks; if I have an Oring, it leaks; do these things just leak? I can"t see how the OEM seal would do any better.
School me, gents!
oaf
 

[souNdguy]

is your trans horribly overfull?

by any chance is your hyds getting sucked dry?

post back
 

[Dean]

It's not the shifter boot. The transmission is overfilled.

Is the hydraulic sump low?

Dean
 

[Texas!]

As Dean and Soundguy have hinted without saying so, I would expect you'll find a ruptured hydraulic pressure tube where the tube passes through the transmission.
 

[Oaf]

Hmmm, ruptured thingamajigger. Doesn"t sound good. What is this exactly? I"ll look in my manuals.

All fluids were changed and filled as per the manual. The is nothing used in the hyd case because the front loader uses a Wagner crank-driven pump and the backhoe uses a Cross brand PTO-driven pump.

I noticed when I took out the Hyd dipstick it "poofed" like there was pressure. The fluid level was right where it was when I refilled it.
Thoughts?
 

[Oaf]

I'll recheck all fluids tomorrow morning, but the hyd level was the same when I shut it down.

Routing of the hydraulic tubes is not clear in my manuals. Why does the tube go through the trans? I've never had one of these apart.

It appears the hyd lift cover was replaced with a flat plate when the backhoe was installed. I will check to see if any hyd guts are left inside the case.
 

[souNdguy]

ford decided to run suction and pressure lines thru the trans.

now.. if yours is a hyd delete machine.. that simplifies things.

you should have told us these pertinant details up front instead of making us guess.

start over and give a full accounting of the issue
 

[Oaf]

Save the scolding tone for your morning coffee crew. I don't know what's pertinent until you ask. That's why I'm here! :)

Everything's as I said above. Fluid coming out the shifter tube. Pressure builds in hyd and trans cases. Fluid levels topped off, with no apparent change, but I'll check again to be sure. No external hyd parts because of the backhoe. I'll see if there are internals.

Why would hydraulics be run through the tran case? Just to avoid ext piping? Odd...
 

[souNdguy]

save the what?

fix it yerself. I'll no longer read / respond to messages with your user title or your IP adress.

later.

have a good day
 

[Oaf]

"you should have told us these pertinant details up front instead of making us guess."

Come on SG, was this really necessary? My intention was obviously not to make you guess at anything. Not a game, just some friendly questions from someone trying to learn.

OK, you're upset at my joke, I get it. Some folks here are happy to toss it out but have pretty thin skins. Thanks for the prior assistance and best of luck to you.
o
 

[Texas!]

Does your tractor have a hydraulic pump mounted on the right rear corner of the engine? If it does have a pump is there an aluminum manifold connecting the bottom of the pump to the front lower corner of the transmission?
 

[Oaf]

No pump or fittings as you describe, Tex. I looked at the photos and see where it should have been.
 

[Texas!]

There is a pipe plug (not a bolt) in the right side of the transmission housing just below the running board. Remove it and allow the fluid in the trans to drain down to that level. Then operate the tractor and see if the transmission fluid refills itself.