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Ford 9N, 2N & 8N Discussion Forum

Oil pressure to high?

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Bill Drew

03-20-2004 14:58:23

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Just got a 2N and took it out. The oil pressure just about pinned the gauge - at 50. Is this good or bad? _____ _____ Been lurking for a month or so. Lots of good stuff here, and good comments and responses.

Can hardly wait until the thaw so I can try out the plow and other stuff that came with the tractor. Even on a nice warm day like yesterday (35F, 2C), that metal seat gets a bit cool after a while.

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Roland (AL)

03-20-2004 22:15:28

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 Re: Oil pressure to high? in reply to Bill Drew, 03-20-2004 14:58:23  
Bill, looks like you have a solid engine in real good shape. 50 Lbs oil pres. is great. What wt. oil are you running. I run 30 wt non detg. oil year round here in LA (lower Alabama). Most run 15-30 Lbs. Mine runs 25 Lbs at 500 rpm 35 Lbs at 1500 rpms. This is at working temp.

Later Roland (AL)

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Mt Roy

03-20-2004 17:43:41

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 Re: Oil pressure to high? in reply to Bill Drew, 03-20-2004 14:58:23  
Here in Eastern Montana We have been getting some warmer temps but still have a few serious drifts. I use an old "Carhart" to cover the metal seat. Sure helps on the old mans differential. That's a good looking old working 2N you have there.

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Bill Drew

03-20-2004 18:43:12

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 Re: Re: Oil pressure to high? in reply to Mt Roy, 03-20-2004 17:43:41  
The tractor & backblade was just able to deal with the 3" of wet slush so we'll keep the Township's snow plowing service. $15/time to deal with a quarter mile driveway with equipment that is meant to deal with a serious amount of snow - cheaper than getting the gear to do it myself. They don't come out for snow under 4" & the N should deal with that amount. Western Wisconsin doesn't get the real bad lake effect snows, so it won't cost more than $60 this winter.

Still wondering about the high oil pressure.

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Rob N VA

03-20-2004 19:14:11

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 Re: Re: Re: Oil pressure to high? in reply to Bill Drew, 03-20-2004 18:43:12  

My oil pressure is, and always has been about as high as yours. Why? The only thing I can assume is that someone jimmied around the pressure relief valve to increase the oil pressure. Someone here asked the same question about high oil pressure, and I smugly responded that I didn't think oil pressure could get too high. Well, aparently that is not the case. As I recall I was corrected by someone telling me that there were seals that could be damaged by excesively high oil pressure. I don't remember which seals specifically, but I suppose the front and rear main crankshaft seals could be damaged by excessivly high oil pressure. To date, my tractor has had no problems with the high oil pressure, and I have had it for almost 2 years, my pressure is 50-55 psi, and I work it moderatly. I bush hog about 10 acres half a dozen times a year or more, and use it to drag stuff around the yard, and clear out the woods when I have time. Others opinions may be conflicting to mine, but I think the oil pressure is totally fine, but don't take my word for it. ----Rob

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03-21-2004 06:02:19

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 Re: Re: Re: Re: Oil pressure to high? in reply to Rob N VA, 03-20-2004 19:14:11  
We have a similar Ford 8N tractor in Upper Michigan and it has had the engine rebuilt
twice. In 55 years of service it has survived
with that higher pressure. If your rig starts
and runs 20 times with that pressure you may
consider that normal for your rig. Replace your oil canister tower with a new filter
and use a good grade of oil. This is not too much of a problem. If your rig refuses to shut down then look about for a new and perhaps last
Stephen King novel "8N Unending".
Looks like the only thing you have to do with this
tractor is work it and enjoy it. Good luck.

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