Sep 16, 2006 · I bought a kubota B6000 on ebay. the guy said it was ready to go but as soon as it warmed up, the oil pressure fell to nearly zero. the idiot light came on. Sep 16, 2006 · I bought a kubota B6000 on ebay. the guy said it was ready to go but as soon as it warmed up, the oil pressure fell to nearly zero. the idiot light came on. Aug 26, 2005 · first thing i would do when faced with that problem is change the oil/filter and plug a different guage in to the block where the pressure line comes out . may be sludge in the line or gauge that is not reading true. is this a three cylinder,gas ,diesel or the older 4cyl? certainly dont go with just the idiot light! still have to convert our 6600 to pressure guage but the other tractors are ... I took off the oil cap when the engine was idling and could see the oil being sprayed around inside the valve cover, so I gambled that the oil pressure was o.k. and continued on the trip. When we returned home, I did have the oil pressure checked. The pressure was fine and the problem was just the switch in the sending unit. So, I think I finally solved the EGR port problem and I am trying to make sure this van runs for another 30-80K miles. When the engine idles and the oil is pretty hot, the oil lamp (idiot light) on the dash flickers and is sometimes steady, but you can feel the engine doing it's thing while the... Aug 16, 2012 · 06 and 56 series tractors used a light for oil pressure indicator. A sending unit from one of them is probably the same as the JD. The MCV lube pressure sender is the same type of unit but has a lower pressure operating range than the engine.