Didn't realize it wasn't a blind hole, my bad. I looked at mine and thought it was a blind hole, just drilled longer then the rest. I will have a closer look to be sure. It may be as Soundguy says, a hole in the bellhousing to let a mainseal leak drip out. I have never seen a hole this big for that purpose however. Usually just a small slit or hole to let oil out and not let debris in.
What is this hole on the transmission for? (JD 5085E)
- Thread starter Magicman710
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Soundguy
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It's a Common practice to put a weep hole in the bellhousing...
OP
Magicman710
Silver Member
I've ran the tractor 3 times since I posted the OP, since my dealer won't be open until tomorrow.
The first time, I ran it about 30 minutes. No leaking.
The second time was about 1 hour, there was some dripping afterwards.
Ran today for about 2 hours, no dripping.
The first time, I ran it about 30 minutes. No leaking.
The second time was about 1 hour, there was some dripping afterwards.
Ran today for about 2 hours, no dripping.
Leejohn
Elite Member
Trans input shaft seal bad, or vent on trans not working and putting undue pressure in case.
OP
Magicman710
Silver Member
Been looking on JD parts. I suppose it could be the oil pump seal that's bad. My dealer is backed up with service calls so they won't be able to come out until late this week or next week.
beenthere
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Maybe your service guy can take a look in that hole with something like an endoscope camera and see what is happening.
Soundguy
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- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
easier to just see if it is hydro oil or engine oil. 
1Lawman
Silver Member
I have the same threaded hole on my 5093E..I have no idea why there would be a threaded hole there but I'd sure like to know..
JD3520Turbo
Silver Member
Is it possible that your hydraulic system is overfilled and this is a vent or something and it is purging the over flow out of this hole?
Check your site windows in the back by the pto shaft and see how much oil is in there. With all hydraulics in the down position, you should see fluid line half way up on the upper site glass. If there is oil all the way to the top, then you might be overfilled from the factory. Not likely, but possible.
Check your site windows in the back by the pto shaft and see how much oil is in there. With all hydraulics in the down position, you should see fluid line half way up on the upper site glass. If there is oil all the way to the top, then you might be overfilled from the factory. Not likely, but possible.
OP
Magicman710
Silver Member
Not overfilled. Fluid is to the top of the lower sight glass, none in the top sight glass.