Hydrauic fluid--NASTY!

[ffrnemtp]

I just drained the hydro/trans fluid from my '49 8N. It looks BAD! Kind of a nasty yellow-brown and thicker than molasses. Can or should I do anything else before I refill it with 90w mineral oil?

 

[Dan]

Clean the sumps out or you will contaminate that fresh 5 gallons of oil. Drop the pump, pull the PTO, and get in there with some kerosene and paper towels.

Dan

 

[souNdguy]

If it was me, I'd dump in a quart of cheap walmart atf, a cheap 1$ bottle of isopropyl alcohol.. also from walmart, and then a couple gallones of diesel, agitate a bit so that the alcohol grabs as much water residue as it can, then let her drain.. sure.. there will still be a lil old oilleft.. but much of the water will be solvated by the alcohol and thus allowed to drain with the diesel.

after that flush, add yer new oil.

soundguy

 

[ffrnemtp]

How should I "agitate" it?

 

[Ed S.]

What's your temperature where you're working on the tractor? Can you get it warmed up a bit?

It's not hard to pull the PTO (4 bolts) and drop the pump, and you'll get fairly good access to the sumps for a good cleanout.

es

 

[souNdguy]

shake the tractor side to side.. or.. if you aren't the incredible hulk, then you do like the rest of us would....you start it up and let the clutch out so the trans can spin.. then you drive her in a couple circles, then you shut her down.

IMHO.. don't run the pto during this..

soundguy

 

[ffrnemtp]

It's in the low 70s. I'm really not prepared to pull the PTO and drop the pump. I don't have a shop manual yet, and I don't have new gaskets for the pump and PTO. I don't know off the top of my head what linkage is connected to the pump.

 

[Hobo,NC]

(quoted from post at 21:53:08 02/04/10) It's in the low 70s. I'm really not prepared to pull the PTO and drop the pump. I don't have a shop manual yet, and I don't have new gaskets for the pump and PTO. I don't know off the top of my head what linkage is connected to the pump.

Its probably best you drain and fill,,, with out dropping the pump you will never get it clean as it should be,,, mite even wake a sleeping dog,,, If you are not going to do the job right then haft arse'n the job is of not much benefit,,, myself I do not use 90 I use 80/90...

WARNING :shock: all I know I read on the Internet,,, do it enuff and you can become a guru also,,, not responsible for damages,,, I read it and just pass it along,,, proceed with caution

 

[Jimps]

I got my first tractor (52 8N) in early 2008 and the first major job I did on it was to drop the pump and clean the hydraulics. I'm not a mechanic, just pretend to be one at night and on weekends. It seemed a bit much for me at that point, but there is a lot of good information on this board, and you MUST get that FO-4 shop manual! Take it all apart and do it right. You won't have to touch it again for years. It's a nasty job but you'll learn a lot in the process.

Do yourself a favor and do it right the first time. Here's a picture from December of the pump after I flushed it with diesel and then dropped it to clean it right. I would have left a lot of goop in there if I had not dropped the pump.

I got another 8N in December and that was the first thing I did to it. It was MUCH easier the second time around, mainly because I was not worried about breaking something. I just break it, fix it, learn from the mistake and move on! The Bruce 50 Tips become more apparent as I do more with these tractors.

Plus, you will learn alot about how the hydraulics work. Have fun!

Jimps in GA.

 

[Hobo,NC]

Jimps in GA.[/quote]

Once upon a time you would have been called a fool for making a post like this,,, on one N tractor-nutz-club site even told to shut up and sit down,,, as they highly recommend rigger-nig'n temps to clean the sump,,, even got a how-2 and very proud of it...

Teach a man to do the repair correctly then let him make the call if he's to lazy to spend the extra time to perform a much needed service,,, its a once in a lifetime event that just happen to fall on your watch,,, 50 years from now someone will have to do it again...

Great post Jimps

WARNING :shock: all I know I read on the Internet,,, do it enuff and you can become a guru also,,, not responsible for damages,,, I read it and just pass it along,,, proceed with caution

 

[Jeff-oh]

The attached link is to this same question and the Hydraulic/Diff. cleaning procedure the Ferguson Guy's use.

Things I add at this point. If you can get more access by pulling a shift panel do that too. (this may be a Ferguson thing)

Also I would recommend driving the tractor and running the Hydraulic as there is contaminated oil in thoes lines too.

Finally if the pump is as bad as the one pictured below I'd probally pull it and mechanicaly (scraper and tooth bruch clean it.)

The picture is a TO-30 pump I cleaned up and it was as bad as the messy one pictured in the other post. I post it here to show you it can be done and not that bad. Just takes time.

Diffy Cleaning Procedure

 

[Kevin Singleton]

I thought he said, "TASTY!"
My 8N

 

[Jimps]

Here's a picture of my pump after I cleaned it up.

And here is a shot of the diassembled pump after it was all clean, ready to reassemble and reinstall.

I was able to drop it and reinstall it by myself, without jacking the tractor. Just remove the left running board and sit down right beside the tractor, you can use your knees and hands to hold it up while starting a few bolts.

Jimps in GA.

 

[Jimps]

(quoted from post at 08:57:45 02/05/10) Jimps in GA.

Once upon a time you would have been called a fool for making a post like this,,, on one N tractor-nutz-club site even told to shut up and sit down,,, as they highly recommend rigger-nig'n temps to clean the sump,,, even got a how-2 and very proud of it...

Teach a man to do the repair correctly then let him make the call if he's to lazy to spend the extra time to perform a much needed service,,, its a once in a lifetime event that just happen to fall on your watch,,, 50 years from now someone will have to do it again...

Great post Jimps

WARNING :shock: all I know I read on the Internet,,, do it enuff and you can become a guru also,,, not responsible for damages,,, I read it and just pass it along,,, proceed with caution

Thanks!

 

[BLDFW]

(quoted from post at 14:44:09 02/04/10)

Its probably best you drain and fill,,, with out dropping the pump you will never get it clean as it should be,,, mite even wake a sleeping dog,,, If you are not going to do the job right then haft arse'n the job is of not much benefit,,, myself I do not use 90 I use 80/90...

I agree. My oil came out baby doo doo yellow like yours when I drained it the first time after I got my '48 8N. I cleaned the gunk out as best I could and then put in new oil. Mistake. While I got most of it cleaned out, the new oil dirtied up almost right away. I discovered the pump cylinder was leaking and decided to replace it and figured while I had it open I may as well drop the pump and clean it up the right way. It wasn't all that difficult. Hated the thought of wasting perfectly good oil but wanted it done right. Oh well. Lesson learned.

-Bill
Dallas, TX
1948 Ford 8N (built in '47)
Front mounted Dist, Converted to 12v
http://photobucket.com/Ford_8N