[AT] Low oil Pressure on 8n? 8v to 6v adjustment?

[Charlie V]

Will,

As charlie suggested, the line or fitting at either end may be clogged.  I
too have had that happen. ( on a ford N )  If you can remove the line from
the tractor, wash through it with some kerosene from a pump oil can, then
blow a little air through the line to insure it is clear.  Also from your
pump can of kerosene, push a little into the fitting at the engine and into
the fitting on the gauge to insure those passages are not obstructed.
Replace the line and hope all will be well.  If the gauge itself is stuck,
tapping the dash near the gauge with a wooden handle may pop it loose.  Do
not tap directly on the gauge glass.  It will break, and do not ask me how
I know this.  (Ammeters  are more prone to gauge sticking)

Good luck.

CV


On Mon, Jul 8, 2013 at 8:38 AM, Will Powell <william.neff.powell at comcast.net
> wrote:

>
>
> Charlie,
>
>
>
> It's dash mounted. Good idea to check the line.
>
>
>
> Does any know if the  oil pressure on the 8n is significantly  different
> from the Oil pressure on an Allis Chalmers?  I have plenty of AC guages
> from the C,WD,D17 that I could use as a test.
>
>
>
> Regards,
>
>
>
> Will
>
>
>
> ----- Original Message -----
>
>
> From: "charlie hill" <charliehill at embarqmail.com>
> To: "Antique tractor email discussion group" <at at lists.antique-tractor.com
> >
> Sent: Monday, July 8, 2013 8:10:54 AM
> Subject: Re: [AT] Low oil Pressure on 8n? 8v to 6v adjustment?
>
> Will,  I don't remember if the oil pressure gauge on an 8N is
> dash mounted or on the side of the engine so this might not apply.
> I once had one of my AC tractors all of a sudden show NO oil pressure.
> After I got over the initial panic of thinking how much a rebuild was going
> to cost me I removed the valve cover and could see there was plenty of oil
> flow and apparent pressure.  Turned out the small steel tube that carries
> oil to the oil pressure gauge had become plugged up with oil sludge.
> I got it cleaned out good and the gauge went back to work just fine.
> Regardless where your gauge is mounted it would be worth your time to
> take the gauge off, then start the tractor just briefly and see how much
> oil is coming out of the fitting and how much pressure it appears to have.
> You can do that in a matter of a few seconds of running time.  That should
> tell
> you if it's the gauge or line to the gauge.
>
> Charlie
>
> -----Original Message-----
> From: Will Powell
> Sent: Monday, July 08, 2013 6:34 AM
> To: Antique tractor email discussion group
> Subject: [AT] Low oil Pressure on 8n? 8v to 6v adjustment?
>
>
>
> Hello,
>
>
>
> Helped my brother-in-law get his 8n running after it had been sitting for
> about 3 years.
>
> Cleaned out the fuel system.
>
>
>
> Engine was stuck. Took out the plugs, sprayed in some WD40. Let it sit for
> a
> while. Rocked it back and forth in 4th gear. Could see a little bit of
> movement from the fan.  Hit the starter again and it turned over.
> Knocked/tapped a little bit as the valves loosened up then all was fine.
>
>
>
> Rechecked the electrics. Cleaned out the points. Finally got spark. Started
> right up ran like a sewing machine.
>
>
>
> Was 8v and we had an adjustable resistor so we did not fry the 6 volt coil.
> That was a pain. Bought a new stock resistor and  we put in a 6 volt
> battery. What's the process for adjusting the regulator back down to 6 volt
> from 8?
>
>
>
> Also, while it was running I noticed that the oil pressure guage was not
> moving. Throttled it up and I noticed a little bit of movement in the
> guage.
> Is this normal? Could it be a bad guage, or, Is the engine worn out? It's
> not smoking out the exhaust. Next step is to try a new guage.
>
>
>
> Regards,
>
>
>
> Will
>
>
>
>
>
>
>
> Was tight
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