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How to change hydraulic/transmission oil in a 1952 Ford 8N

M

Maxey

New User
Can someone please provide information or a link explaining how to change hydraulic/transmission fluid and type to use for a 1952 8N?
 
8N's have one common sump for trans/hydraulics/rear end.
There are three drains underneath, one small one on the rear
end, one near the hydraulic pump and one on the trans.
I drain them in that order because it makes less of a mess.
It holds 5 gallons of fluid, so you'll need a big container.
I use Universal Tractor Fluid (UTF) that meets Ford spec M2C134.
You can get it at TSC, Walmart, etc. TSC sells it in 5 gallon cans.

It may only hold 4 1/2 gallons or so if it hasn't been cleaned out.
You can pull the lower bolt on the round inspection cover where
the hydraulic dipstick is, then fill it until it just runs out.
That's the correct level.
If your dipstick isn't marked, you can mark it then.
 
Royse pretty much nailed it.

when you drain the fluid, if it is milky, before you add new oil, dump in 4g of diesel and 2-3 pints of 90% rubbing alcohol , and a quart of cheap atf. type f or merc/dex 3 . then make a victory lap around the yard and then drain her.. then refill with good oil.

I wouldn't specifically use the hyds during that flush time.
 
???

you are not by chance confusing dewatering a sump with cleaning a sump?

dewatering a sump using alcohol, a polar solvent to help remove water , a polar material, by disolving the water and carrying it in soloution. the atf is to help with emulsion/ carrying flaoting debri.. the diesel is there to help with the stable emulsified waxy oil/water mix that does not drain out easilly. the mix actually forms an azeotrope and dewaters real goot, vs just suspendig or emulsifying the water.. it actually solvates it.. also lowers it's flash point and vapor pressure too. any residual disolved water and alcohol azeotrope leftover will flash off faster than water alone.

one reasone why seafoam transtune works so well.

I believe you may be confusinf this with the 'cleaning' method of trying to remove the ? inch or so of gunk that builds up in the base of the sumps over the decades.


2 seperate issues
 
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