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

[charlie hill]

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
_______________________________________________
AT mailing list
http://www.antique-tractor.com/mailman/listinfo/at