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8N Fluid levels

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Norm(WY) 8N*265

11-10-1999 10:15:07

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Just went out and finished the last of a project on the 8N and decided to check fluid levels. Engine oil is in the middle of safe operating range on the dip stick, coolant is down out of sight below the top of the core and the transmission oil level is about 2" above the full mark on that dip stick and the oil looks milky like when you have water mixed with oil. It appears that engine coolant (prestone water mix) has found it's way into the transmission oil to me. Now it's time to ask the experts---What's going on here? If it's coolant in the tranny oil how in the @#&*?%$#@ can it get there? I used the tractor for about an hour yesterday before I started the maintenace project and it was running like a top with no sign of running hot. I am once again at your mercy guys---Where do I go from here? TNX in advance Norm(WY)

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Nolan

11-12-1999 08:08:24

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Re: 8N Fluid levels in reply to Norm(WY) 8N*265020*, 11-10-1999 10:15:07

I've come to the conclusion that N's are the most amazing suckers of water when it comes to the transmission. Mine can still do it superbly if I allow it out in the rain, and I've sealed that thing up every way I can think of and find. And yes, it passes the garden hose test. So my suggestion from my own experience is to keep the rear end covered. As long as I do that, no more water enters the gearbox. And that water, being lighter then oil, will sink to the bottom, and freeze up in the hydraulic pump, breaking it catastrophically as I learned.

And fwiw, the water will seperate out eventually. So you can recover the oil if you wish.

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Sam (Mo.)

11-10-1999 15:25:35

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Re: 8N Fluid levels in reply to Norm(WY) 8N*265020*, 11-10-1999 10:15:07

Besides keeping a good shifter boot on mine, I also used some silicon under the gear oil filler cap. On my tractor that cap fits pretty loose, and I think some water was getting under it. Anyway, a soft silicon seal there sure doesn't hurt anything.

Engine coolant in the gear oil is something we don't have to worry about - there's about a foot of empty space in the clutch housing that separates those areas.

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Norm(WY) *8N265020*

11-10-1999 16:55:38

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Re: Re: 8N Fluid levels in reply to Sam (Mo.), 11-10-1999 15:25:35

Sam, TNX a lot for the feedback--I couldn't see any way for coolant to get into the tranny but when one level was way down and the other was way up at the same time I figured I'd better talk to some of you guys about it. I like the silicon seal around the filler cap too. I did notice that my starter switch is a little loose and moves around a bit. When I was moving it I noticed some moisture being sqeezerd out from under it also, so maybe should try to seal the switch a little tighter too. TNX Norm

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Sam (Mo.)

11-10-1999 15:24:08

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Re: 8N Fluid levels in reply to Norm(WY) 8N*265020*, 11-10-1999 10:15:07

Engine coolant in the gear oil is something we don't have to worry about - there's about a foot of empty space in the clutch housing that separates those areas.

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Dennis N Tx.

11-10-1999 10:30:19

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Re: 8N Fluid levels in reply to Norm(WY) 8N*265020*, 11-10-1999 10:15:07

It is impossible to get antifreeze into the transmission unless it is deliberate.

The water/antifreeze level will be down to the core in the radiator. If it is filled to the top it will spit out the mix till it gets down to the correct level.

The reason for the milk in the tranny is from rain and/or washing. It gets in from the shifter. The shift handle acts like a wick, it can drain a lot of water into the tranny. Replace the boot on the shifter. Three dollars is pretty cheep.

Hope this helps.
Dennis
8N48II82

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Norm(WY) 8N*265020*

11-10-1999 11:06:55

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Re: Re: 8N Fluid levels in reply to Dennis N Tx., 11-10-1999 10:30:19

Dennis-Thanks for speedy reply--That's the kind of answer I was hoping for. I'm pretty good at the little jobs but cracking cases etc etc just ain't my cupa tea. TNX again Norm(WY)

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