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Transmission leak from cotter pin - unable to split


 
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Upstart
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PostPosted: Mon Mar 02, 2020 4:20 am    Post subject: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote

Hoping for some advice from Australia. I have a John Deere 2120 that leaks clear oil from the cotter pin after turning off the tractor . It is only used to tow my boat 100 yards at the beach up & down a hill & runs for 15 minutes each time . The oil leaks about 2-3 ounces each time and stops after about 10 minutes. I am unable to split the tractor due to being in a remote area so wanted to know if any real damage can be done as the tractor only runs for a short time and does not work hard ? The clutch has not slipped yet so this must be due to oil draining out from cotter pin . Would a thicker oil help or should I lower the oil level ?Any advice would be appreciated.
 
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Tx Jim
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PostPosted: Mon Mar 02, 2020 4:27 am    Post subject: Re: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote


Welcome to YT
More than likely you're seeing clear hyd oil leaking from drain. Worst scenario if you keep trans adequately full of Hy-Gard oil or it's equivalent oil is an oil soaked clutch which will over time possibly slip & require R&R.
 
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centash
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PostPosted: Mon Mar 02, 2020 4:32 am    Post subject: Re: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote

If it's clear oil, it's likely from the transmission. A small leak won't hurt
anything as long as the oil cannot collect in the clutch housing, where it is
leaking from. Keep the level up by checking the dipstick behind your right heel. It
can run for years at your level of usage, just keep the level up. It will likely
gradually leak more, and at some time may become a problem. Just keep an old
container underneath it to contain the spill.

Ben
 
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D-
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PostPosted: Mon Mar 02, 2020 6:26 am    Post subject: Re: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote

Yes, transmission/hydraulic oil and it will eventually soak clutches.
Do not use thicker oil or lower the level.
 
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Upstart
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PostPosted: Tue Mar 03, 2020 3:56 am    Post subject: Re: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote

Thank you all for the feedback. Is there anything else than can be done to prolong the clutch from slipping such as parking on an incline? The leak has been going on for 18 months yet with no sign of slipping.
I have heard there are particular additives to add into the tank to soften the seal if that is causing the leak .
Another thing that happens is that I have a carrier attached to the linkage that will drop to the ground after stopping . Not sure if related ?
 
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SVcummins
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PostPosted: Tue Mar 03, 2020 4:11 am    Post subject: Re: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote

My 3020 was leaking oil bad out of the flywheel
cover I was running the cheap oil in it I switched it
to hy gard and the leak quit this was on a power
shift



 
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Tx Jim
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PostPosted: Tue Mar 03, 2020 5:11 am    Post subject: Re: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote

Upstart wrote:
(quoted from post at 06:56:28 03/03/20)
Another thing that happens is that I have a carrier attached to the linkage that will drop to the ground after stopping . Not sure if related ?


If the carrier you're referring to is attached to 3 pt hitch lowering in a timely manner isn't unusual. With hyd oi at operating temp,3 pt raised,engine idling look inside hyd filler hoe behind seat for moving oil. Moving oil indicates leaking rockshaft control valve seals which would require R&R of rockshaft(3 pt hitch) housing to renew the seals.
 
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Upstart
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PostPosted: Wed Mar 04, 2020 3:39 am    Post subject: Re: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote

Tx Jim wrote:
(quoted from post at 06:11:46 03/03/20)
Upstart wrote:
(quoted from post at 06:56:28 03/03/20)
Another thing that happens is that I have a carrier attached to the linkage that will drop to the ground after stopping . Not sure if related ?


If the carrier you're referring to is attached to 3 pt hitch lowering in a timely manner isn't unusual. With hyd oi at operating temp,3 pt raised,engine idling look inside hyd filler hoe behind seat for moving oil. Moving oil indicates leaking rockshaft control valve seals which would require R&R of rockshaft(3 pt hitch) housing to renew the seals.

Thanks Jim , I will have a look & see if oil is moving .
Might be worth adding new oil as well .
 
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Upstart
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PostPosted: Mon Mar 30, 2020 9:55 pm    Post subject: Re: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote

Hi TX Jim , I inspected the filler cap behind seat when John Deere was running & could see no oil moving around inside which is positive . I did notice on the weekend the oil has stopped leaking from the cotter pin . This is probably the 2nd or 3rd time in 18 months that the leak has stopped for a short period of time . The leak may stop for a few weeks & then start again . I only use the tractor on weekends & run for 20 minutes at slow idle .
 
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Tx Jim
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PostPosted: Tue Mar 31, 2020 2:15 am    Post subject: Re: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote


Upstart
Does your tractor have hyd hi-lo or hyd reverser? If so either type could be leaking hyd oil into clutch housing
 
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PostPosted: Tue Mar 31, 2020 1:16 pm    Post subject: Re: Transmission leak from cotter pin - unable to split Reply to specific post Reply with quote

The tractor has a gear 1 to use from 1-4 that you can change to gear 2 for gears 4-8 . I have little experience with tractors .
 
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