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Ford 9N, 2N & 8N Discussion Forum
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I've got...Milky Hydraullic fluid

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8NaN

11-14-2004 14:54:03




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Learned in the archives that milky"s not good.

Bought five gal of fluid at Tractor Supply. Asked "em about replacement plugs, and got the deer-in-the-headlight look.

Tried to remove all three plugs (1 1/16 wrench, pipe wrench, "extender" pipe...) and was only able to remove the farthest one back... 7/8 six point socket worked well. Didn"t want to trash the others with no replacement on hand.

Drained, and drained, and drained stuff that looked like thin caramel.

Thought I"d flush with some of the five gallons of hydraulic fluid... poured in what seemed like a gallon a little at a time and never got it to run clear.

Frustrated now, stuck the plug in, filled "er up...
now I"ve got...

Milky Hydraulic fluid.

Did I just waste time and money?
Should I try again with replacement plugs in hand?

TIA...

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souNdguy

11-15-2004 05:47:59




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 Re: I've got...Milky Hydraullic fluid in reply to 8NaN, 11-14-2004 14:54:03  
Here's a couple options to get that drain plug off. 1, use a pipe wrench.. they are pretty agressive. ( This may actually twist the small head of the large cap)... if so, either try to weld a narge nut onto the remaining cap or use a chissle to tap the cap around. The chissle method works great.. the welding method is extreme, but usually provides good results, as the heat from the weld tends to break things loose.

With a realy contaminated sump, I think I would have poured in about 3 gallons of diesel, and put the tractor in neutral, and grabbed onto a rear tire and sloshed the diesel around inthe sump for a few minutes.. then drain and let drip a while, and then refill.

soundguy

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2fordsmike...condensation

11-14-2004 17:17:59




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 Re: I've got...Milky Hydraullic fluid in reply to 8NaN, 11-14-2004 14:54:03  
Most guys think that water got in there from rain, but more than likely it is simply condensation from 4 or 5 year (10 or 20 years!) of the cycles of the seasons. When iron is cold and the air is warm and humid, all tractors will sweat inside and out. It can add up to lots of moisture. I believe that tractors that we worked long days for many months each year boiled away or evaporated this moisture. But on acreages and leading the easy life these old pets accumulate a lot of water. Believe me, in my 36 x 60 toy shed I have seen puddles on the concrete under the tractors and, even a bigger puddle under a fiberglas boat hull. No kidding. Cordially, Mike-Iowa

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Dell (WA)

11-14-2004 17:07:38




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 Re: I've got...Milky Hydraullic fluid in reply to 8NaN, 11-14-2004 14:54:03  
Both the N-Hydraulic drain and the N-Tranny drain use the same p/n 9N-7010 plug, 2.5" od. and p/n 8N-7011 gasket. The diffy plug is 1/2 pipe with extended square head. At least that is what my N-Ford MPC sez..... ...Dell



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FLAcharlie

11-14-2004 16:18:25




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 Re: I've got...Milky Hydraullic fluid in reply to 8NaN, 11-14-2004 14:54:03  
I'm in the same boat. Last spring when I started bringing this 8N back to life, I went to change the gear oil, and could only get the drain plug towards the front of the tractor off. And I'd gotten 5 gal of some 80/90 stuff that the local tractor place told me was what I needed. Hydraulics working OK, but I'm set on putting in straight 90 weight, GL-1. Also set on getting the other two drain plugs unstuck. Today I got the rearmost one (square bolt) free by putting vicegrips on it and hitting with the hammer. But the middle one still won't respond. 1 1/16" too big at this point, 1" too small, it's pretty worn. Any tips anyone for getting it free ? I'm thinking of drilling a hole if I can cross thru the bolt and putting a rod through to turn it.

Is it a standard size drain plug ? 'cuz I'd like to replace it.

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48PA8N

11-18-2004 08:52:42




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 Re: I've got...Milky Hydraullic fluid in reply to FLAcharlie, 11-14-2004 16:18:25  
I would reconsider the 90 weight if you live where it goes to freezing. Hydralics are very slow. I used 50 weighth GL1 with no problem for the past five years. No wear noted on gears or pump.



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Willy-N

11-14-2004 16:31:10




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 Re: I've got...Milky Hydraullic fluid in reply to FLAcharlie, 11-14-2004 16:18:25  
I have had luck with using a floor jack to hold a peice of plywood against a 18 inch pipe wrench and a 2 lb hammer to hit the wrench handle and jar it loose. The jack and plywood will hold the Pipe wrench from slipping when you do this. Mark H.



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Bruce (VA)

11-14-2004 15:08:44




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 Re: I've got...Milky Hydraullic fluid in reply to 8NaN, 11-14-2004 14:54:03  
What willy sez....plus, use kerosine or diesel fuel to clean it. Remove both inspection plates & reach in to clean the crud out by hand. When you get it clean, put in about 4 1/2 to 4 3/4 galons of Ford NH spec 134D fluid, or 90w mineral oil; when you see fluid dripping out of the lower bolt holes on the inspection plates, you've added enough fluid. And, either keep the tractor out of the rain or replace the shifter boot; that's were most of the water is getting in.

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Willy-N

11-14-2004 15:00:43




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 Re: I've got...Milky Hydraullic fluid in reply to 8NaN, 11-14-2004 14:54:03  
Yep, you need to get all three plugs out to get the contaminated fluid out. Most of the junk will be in the front 2 compartmens on the bottom and you car flush out the tranny better if you unbolt the Shifter Cover and get in a wash it. You can also pull the PTO Shaft out and reach in and clean out a lot of build up too. Water will make the fluid Milky. Mark H.



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