naa strange oil leak

Money Pit

Member
have an oil leak no idea how it can leak from there. after it warms up a bit i get some oil seeping from around the starter button. no clue how oil leaks upwards. the tranny isn't pressurized; or is it building up internal pressure as it warms? cleaned the entire area last night and fired it up. tranny casting never got warm to the touch yett after about 10 minutes there was some visible seepage around the starte button. as always any clues appreciated.
 
Oil is slung all inside by the transmission gears..same reason I have weeping around the shift lever cover and steering arms.
 
I would check the oil levels.
I'm mostly unfamiliar with the NAAs but on the Hundreds the oil tubes pass from the pump, through the transmission to the rear end. Being on the bottom, they sometimes rust through and allow the hyd pump to over fill the transmission.
Maybe someone here can tell us if it's similar on your tractor.
 
my first thought was hold on it does this while sitting in nuetral. then i thought about it even in nuetral theres stuff spinning in there.
 
when i got my new starter button it came with a new gasket for the bottom of the button it seals it from leaking when the oil is thrown up from the spinnig gears Bill
 
amazing if you could see it ,how far those gears will sling even very heavy gear oil. Pretty efficient pumps.
Working on a Farmall with the belt pulley off, spinning the rear wheel slowly to check the constant mesh gear.
Nice rainbow of oil up and out of the opening.

(External hydraulic lines on a NAA, UD)
 

You got that right.
My Daughter wanted to customize my 8N's Shifter cover so I removed it and set it up on a bench for her to perform her artistic duties.
Figured at the time I would do a visual check on the gears and why not start her up to see how all the gears mesh. So I hopped on and while bent over and staring into the tanny I hit the start button.
Man you would a swore that I jumped into a barrel full of oil.
 
I wouldn't worry about a little bit of oil seepage. Seems like both my Jubilee and 8N have an oil film most everywhere. I figure the oil film is a good thing and will keep the tractors from rusting away. When it gets too bad, I give them a bath using a cup of kerosene to a bucket of water - gets rid of the oil and makes the paint shine.
 
man now that is funny! you probably didn't think so at the time i guess. bet your daughter got a kick out of it after determing you werent hurt.

thanks for sharing.
 
naa has an external tube manifold set of pipes that runs underneath tranny and attaches to center section.
 
got a gasket under the start buton?

if not and you don't want to add one and the switch is not loose, clean with brake cleaner, allow to dry and caulk a bead around it with red rtv... allow to cure..
 
(quoted from post at 14:50:50 10/21/14) naa has an external tube manifold set of pipes that runs underneath tranny and attaches to center section.
Another one of the features that make the Jube unique.
Makes me wonder if a lot of them got damaged in use so they
moved them inside the trans or if it was just a "better idea".
 
Mine are dented but work fine, imho, replaceable piping is much better than the thru trans idea, after all, any of us goobs could cut old pipes off and brass on ends and run soft lines if needed
 
Exposed pipes aren't so bad really. The 65+ tractors have exposed hyd lines.
They did get bashed in on occasion though.
When I switched to the newer style hi vol pump on my cobbled up 3000 a few years ago I found a used pump and lines on ebay.
I think the seller must have used the tractor for rock climbing as the suction line was pretty beat up.
I found some sorta spud that was the right diameter at a junk place and welded it onto a length of 1/2" rod. Then heated the pipe and drove most of the dents out of it from the inside.
That was 6 or 7 years ago and it's still working fine.

P4240006.jpg


P4240008.jpg
 
(quoted from post at 22:11:17 10/21/14)
(quoted from post at 14:50:50 10/21/14) naa has an external tube manifold set of pipes that runs underneath tranny and attaches to center section.
Another one of the features that make the Jube unique.
Makes me wonder if a lot of them got damaged in use so they
moved them inside the trans or if it was just a "better idea".

Moving them off the bottom had merit but putting them inside the case was not a "better idea".

TOH
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top