8N shared sump

matt1325 · Mar 23, 2020

Hey everyone I had a question about cleaning out
the hydraulic chamber in my 8N I know that there is
a chamber for transmission fluid, one for hydraulics,
and one for the rear differential my question is if I
didn?t drain the rear differential but only drained the
transmission and hydraulic chamber and put in 2
gallons of diesel and cleaned and drained that will
my rear differential now be flooded with diesel as
well?

I never started the engine I just drained hydraulic
cleaned and then drained again. I then refilled with
GL1.

What is the probability I have diesel in my rearmost
differential since it was never drained?

Is there something I can do so I didn?t just waste 60
bucks of fluid?

JMOR · Mar 23, 2020

As far as fluids go, all 3 are common. No seals between the 3.

TheOldHokie · Mar 23, 2020

(quoted from post at 11:05:16 03/23/20)

What is the probability I have diesel in my rearmost
differential since it was never drained?

Is there something I can do so I didn?t just waste 60
bucks of fluid?

100% and and your options are use it as is or drain and refill. UTF will cost you half of what you paid for GL1.

TOH

matt1325 · Mar 23, 2020

Thanks for the replies. I didn t see the darn rearmost drain plug it was hiding under a bracket.

Well I have to open it back up anyways I replaced the piston with a jubilee one but it is still leaking from the top cover so I am going to take everything apart again and try to either hone the cylinder or buy a new one. If it still leaks I will be baffled.

As far as the fluid goes I still have 2 more gallons fresh gl1 so maybe I should just drain all of it and put 2 gallons fresh and reuse the potential gl1/diesel mix.

I hope too much diesel didn t mix with it I put 2 gallons diesel in and scraped and cleaned and it looked like about 2 gallons of diesel went back into the pan. Once again thanks any other suggestions I will do as well.

Jim WI · Mar 23, 2020

I would drain it and use UTF.

GL-1 has no EP additives and you've mixed diesel with it so just how good of lube will it be?

R Geiger · Mar 23, 2020

(quoted from post at 15:30:38 03/23/20) Thanks for the replies. I didn t see the darn rearmost drain plug it was hiding under a bracket.

Well I have to open it back up anyways I replaced the piston with a jubilee one but it is still leaking from the top cover so I am going to take everything apart again and try to either hone the cylinder or buy a new one. If it still leaks I will be baffled.

As far as the fluid goes I still have 2 more gallons fresh gl1 so maybe I should just drain all of it and put 2 gallons fresh and reuse the potential gl1/diesel mix.

I hope too much diesel didn t mix with it I put 2 gallons diesel in and scraped and cleaned and it looked like about 2 gallons of diesel went back into the pan. Once again thanks any other suggestions I will do as well.

just REPLACING THE PISTON WITH O RING TYPE AND using a old cylinder that is scored up is pretty iffy at best. If you buy a new jube cylinder, you may have to do some grinding on it for proper clearance. compare with old. I had to do some grinding on one last year. I did not like the looks of the bore in the new one and had to do some polishing before I felt safe to put an o ring in it. Make sure the backing ring is in the correct position.
Good luck

JMOR · Mar 24, 2020

(quoted from post at 22:43:28 03/23/20)

(quoted from post at 15:30:38 03/23/20) Thanks for the replies. I didn t see the darn rearmost drain plug it was hiding under a bracket.

Well I have to open it back up anyways I replaced the piston with a jubilee one but it is still leaking from the top cover so I am going to take everything apart again and try to either hone the cylinder or buy a new one. If it still leaks I will be baffled.

As far as the fluid goes I still have 2 more gallons fresh gl1 so maybe I should just drain all of it and put 2 gallons fresh and reuse the potential gl1/diesel mix.

I hope too much diesel didn t mix with it I put 2 gallons diesel in and scraped and cleaned and it looked like about 2 gallons of diesel went back into the pan. Once again thanks any other suggestions I will do as well.

Click to expand...

just REPLACING THE PISTON WITH O RING TYPE AND using a old cylinder that is scored up is pretty iffy at best. If you buy a new jube cylinder, you may have to do some grinding on it for proper clearance. compare with old. I had to do some grinding on one last year. I did not like the looks of the bore in the new one and had to do some polishing before I felt safe to put an o ring in it. Make sure the backing ring is in the correct position.
Good luck

f he buys a "new jube cylinder" he will need to do a whole lot more than grinding to make it fit an N! :roll: :roll:

Hobo,NC · Mar 24, 2020

I had a re-do sometime back I put the 3 ring piston back in it... Cylinder was nice the back up ring just broke this was a tote in the lift cylinder was never ground for clearance it did not seam to be an issue so I left it alone...

Charner (MS) · Mar 25, 2020

If you drained all three plugs your ok. I've done that and it works ok. Put your finger in the larger drain holes and see it there is a great deal of sludge and grim there. If so, take off your gear shift plate and you use a pressure and remove a great deal of it in the transmission base.

R Geiger · Mar 25, 2020

(quoted from post at 03:17:29 03/24/20)

(quoted from post at 22:43:28 03/23/20)

(quoted from post at 15:30:38 03/23/20) Thanks for the replies. I didn t see the darn rearmost drain plug it was hiding under a bracket.

Well I have to open it back up anyways I replaced the piston with a jubilee one but it is still leaking from the top cover so I am going to take everything apart again and try to either hone the cylinder or buy a new one. If it still leaks I will be baffled.

As far as the fluid goes I still have 2 more gallons fresh gl1 so maybe I should just drain all of it and put 2 gallons fresh and reuse the potential gl1/diesel mix.

I hope too much diesel didn t mix with it I put 2 gallons diesel in and scraped and cleaned and it looked like about 2 gallons of diesel went back into the pan. Once again thanks any other suggestions I will do as well.

Click to expand...

just REPLACING THE PISTON WITH O RING TYPE AND using a old cylinder that is scored up is pretty iffy at best. If you buy a new jube cylinder, you may have to do some grinding on it for proper clearance. compare with old. I had to do some grinding on one last year. I did not like the looks of the bore in the new one and had to do some polishing before I felt safe to put an o ring in it. Make sure the backing ring is in the correct position.
Good luck

Click to expand...

f he buys a "new jube cylinder" he will need to do a whole lot more than grinding to make it fit an N! :roll: :roll:

Well heck, the cylinder i got from this site had to have a lot of grinding done on it to work with out binding, since i use the o ring style piston i just, wrongly, assumed,that the cylinder was also from a NAA also..thanks for the correction.

8N shared sump

matt1325

Member

JMOR

Well-known Member

TheOldHokie

Well-known Member

matt1325

Member

Jim WI

Well-known Member

R Geiger

Well-known Member

JMOR

Well-known Member

Hobo,NC

Well-known Member

Charner (MS)

Member

R Geiger

Well-known Member

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