I don't think it is suppose to be this color....

dstates

Member
I've had a leak at the belt pully drive for a while (ssslllooowww drip) and decided to take it a apart today to see what seal I need to replace. Anyway, I expected some oil to come out when I pulled it apart so I had a drip pan ready, but I didn't expect this. Why is this oil brown/orange??? Is it suppose to be this color? What oil system feeds this? I assume it should be transmission oil. I just got this tractor this spring and I haven't broken into the transmission yet so all the oil could look like this.

[b:831f26f974]Any thoughts? What would your next steps be?[/b:831f26f974]

Thanks!


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Looks to me like a lot of water in it. Which is still better than dry, but not as good as the right lube. I think it is lubed by the trans.
 
I would drain it out and replace it with the correct fluid. I would also look to see if there is an opening where water is getting in.

A tractor I had, I pulled the filler plug on the axle, somehow it was 2 quarts overfilled. Pulled the drain plug expecting water.. just all 90w oil. Still have not figured that out, but still using the tractor when I need it.
 
Water in the oil. Most gear oil doesn't wear out it
gets contaminated and that's why we change it to
get the contamination out of the system. Yep a 1/2
cup of water ruins 5 gallons of gear lube.
 
That has been changed. Buttery color is the current color for the past 15 years that I have purchased.
 
If these old tractors sit out in the rain for an extended period of time the transmission/rear end case will get water in via the gear stick opening which is not rain proof. Operating the tractor for many hours after such an event would tend to evaporate the water off. Since most do not get the long hours of operation now days the water will not get evaporated off. I would follow the steps outlined in this forum for clearing the case and filling with proper oil. Most will either remove the top of the transmission and clean but some will use diesel fuel. Run the tractor until the rear end is hot then drain the old oil. Overfill with diesel fuel and run for a short time. Allow the diesel to soak for a day or so then drain. Refill with the proper rear end oil.
 

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