Went out on the north forty, to the dozer, and rearranged the spark plug wires and repositioned the gear at the mag. Started the start button, and the engine fired and operated good -real good. I drained the injection pump; a brown/yellow fluid came out. Kinda like diesel and a light oil perhaps. Taking off the cap and removing the level plug on the end, I filled the pump with oil until the oil began to come out the level opening. Replacing the level plug, screwing on the cap,I removed the valve cover. Brought the rear piston to the top and examined the clearances on the intake and the exhaust valves. Everything is okay. Replacing the valve cover, I started the engine on gas, and then went to diesel. Engine operated good, sounded good. There was still white smoke. I loosened the number 4 cylinder injector. There was no sudden drop in r.p.m. and the white smoke pretty much disappeared. Connecting the injector, the white smoke emitted as before mentioned. I had also put some transmission fluid in the diesel fuel tank. With the engine operating, I turned out the -T- valve at the injector pump -located at the lower front, to bleed off the pump. Much to my surprise; the oil that I had put in before was coming out the -T- valve. When I had turned out the -T- valve a few weeks past, diesel fuel had come out there for thinking I was bleeding the pump from any possible air. Are you guys sure that part with the cap at the rear of the pump is to be filled with oil???? I will make an injector test later.
One other thing I observed; above the starter on the right side -as you are looking at the dozer from the front, there was oil coming out. At the bottom of engine, same side, oil was streaming to the ground. Guess; real oil seal. What does anyone think?? When I first got this dozer; checking the oil stick, the oil on the stick was twice the distance of the full mark, and the oil was very, very, thin.
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Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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