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RodInNS
01-09-2006 20:17:24
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Re: 3 cyl. Diesel runing on 2 cyl. (Re-Visited) in reply to rgv tx, 01-09-2006 16:11:02
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Are you sure the sump is making oil, or is it just overfull form the last change, and you hadn't taken much notice of it? Form your pictures, the tractor doesn't have PS, or any other coolers that could add fluid to the engine's sump. As far as the fuel pump goes; what Soundguy said would certainly be true of a distributer pump like on the models mentioned.... But with the Simms pump on your tractor, fuel passing the pump shaft seal into the engine is not likely. If you look at the Simms pump, you'll notice that the pressurised section of the pump is to the rear, while there is a separate govenor case to the front of the pump. The govenor case has it's own oil resevoir, and is also vented to the atmosphere, so as it can't be pressurised. If the pumping chambers were passing any amount of fuel, it would eventually run out the breather tube on the pump body.... unless that tube was plugged. Then it could pressurise the pump body, and perhaps force past the seal into the engine crankcase. However, if this were the case, you would have no doubt noticed very erratic govenor operation long before now..... So I think that's a long shot. The only other ways for the engine oil level to rise in that engine is through bad injectors dumping poorly atomized fuel into the combustion chamber, and washing down the cylinders, or a bad head gasket allowing coolant into the base... It may ( and I say may, as I'm not certain) be possible for the hydraulic pump itself to have an internal leak that would allow hydraulic oil to enter the engine through the pump's drive arpeture.
Since you've had the injectors checked, I would rule them out. To rule coolant out, let the tractor sit over night, and then carefully remove the oil drain plug, just to let a bit of oil out. If there is coolant in the oil, it will have settled out to the bottom over night, and should be the first fluid out the drain. Those are the 2 worst scenarios to rule out. If it's actually taking on oil from the hydraulic system, the hydraulic oil isn't apt to do much harm, and you can track it down over time by watching both oil levels. OK, I've said too much tonight....Rod
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