tomstractorsandtoys
Well-known Member
I just bought a 620 that has not been run in two years. It was sold at an auction because the family was not interested in messing with it. The points were shot and plugs nothing great and fuel system was dry. We put new plugs and points and ran a hose to the carb from a small portable tank we use. Tractor turned over twice and was running but the oil pressure gauge does not move. I went to town and got a hose and gauge and screwed it in where the oil line comes out of the block behind the distributer. With the new gauge we only get about 12-15 lbs of pressure. Tractor runs great and does not appear to have any blowby. We also put in new 15w40 oil. Is there an oil pressure adjustment? Where should I start checking for the loss of oil pressure? Is there a better place to put a gauge? It is a nice strait tractor and I do not want to part it out but I will if the oil pressure problem can not be found as I do not want to sell something that is not right. Give me some ideas where to start. Thanks Tom