Is it an electric or mechanical guage? I had an 856 that just had an idiot light and no guage for oil pressure.
I was out plowing one day and the light began to flicker intermittently. I was near the end, only a couple hundred yards from my shop so I carefully idled to the shop. I checked it out and found the insullation on the wire to the sending unit had worn through where it rubbed against something and was shorting. A few layers of electical tape and a HUGE sigh of relief and I went back to plowing.
As I recall, the sender was on the left side of the engine just above the frame rail. If your guage is electrical, I'd check to make sure all of the connections are clean and the insullation isn't worn off anywhere. If the wiring is all good and the connections clean, I'd try a different sender. If it's a mechanical guage, you might just plug in a different guage and see what happens.
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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