Mahindra 2545 leaking Hyd fluid at rear of engine

[pripyat]

I'm pretty sure it's hydraulic fluid - It's not engine oil and it isn't diesel fuel. Seems to be coming from behind the plate. Tractor is low hours, I haven't looked lately but I'm guessing 300. Any ideas what it is and can I run it (while monitoring the hyd fluid level) while it's leaking? I'm getting a drip every 10 seconds with the engine running.

 

[ptsg]

If you're 100% sure it's hydraulic oil, then must be from the transmission input shaft.

Looks like that plate is not that hard to pull out, it might be a good idea to pull it out and check.

 

[pripyat]

What other fluids are present other than hyd fluid, diesel, and engine oil? I was thinking initially that it could be brake fluid lol. I'm used to working on cars, not tractors.

 

[ptsg]

In that area, it can only be either hydraulic/transmission fluid or engine oil pretty much.

 

[pripyat]

So I took the bolts loose off that plate, hyd fluid started pouring out. It seems like it is supposed to be sealed, it has a thick rubber gasket around it. I didn't remove the plate since I believe the only way I'll be able to get it out is to remove the front drive shaft. Is fluid OK behind that shield? Should I be re-sealing the plate to keep the fluid in or is there a seal on a shaft that is leaking that shouldn't be?

 

[ptsg]

This tractor has a dry clutch so it definitely shouldn't have any oil in there. It's probably so full that it poured out as if it should have oil in there.

Parts catalog lists a input shaft seal and looks like that are some plug to cover some bearings inside. Those could leak too eventually.

You may want to get a pan so you can pull the shield and reduce the mess.

 

[pripyat]

Dirt dauber had plugged the vent tube for the transmission housing. Could that have caused this? I put the plate back on and cleared the vent tube, I'm curious to see If the leaking continues.

 

[ptsg]

I wonder if it pushed the seal out, but give it a try as is.

 

[pripyat]

Cleared out the vent tube, overfilled slightly with hydraulic fluid, and ran the tractor for an hour. By the end of the hour, all the areas that were saturated and dripping had pretty much dried up. Seems it was a positive pressure issue in the transmission housing. Must have been blowing oil past that transmission seal you were speaking of.

 

[ptsg]

Cleared out the vent tube, overfilled slightly with hydraulic fluid, and ran the tractor for an hour. By the end of the hour, all the areas that were saturated and dripping had pretty much dried up. Seems it was a positive pressure issue in the transmission housing. Must have been blowing oil past that transmission seal you were speaking of.

Hopefully it stays that way. Thanks for the update.