Question about 2003 Harley Davidson XL 1200 C Sportster Custom
The oil in a H-D engine does not reside in the crankcase. A Harley engine is a design known as a "dry sump" engine. The oil is stored in an oil tank. From there it is pumped into the engine to lubricate the parts. Once it has done that, it is pumped out of the engine, through the oil filter, and back to the tank.
When you the oil and the filter, it should not take but a minute or two to see the oil return to the oil tank. It must fill the filter first. Now, if the oil light will not go out, you may have an air lock in your oil feed line. If you feel this is the problem, remove the oil pressure switch, and the spin the engine with the starter and pump a few ounces of oil out to remove the air. Replace the switch and everything should be fine.
If you do not have oil pressure on your engine, it will be very evident. Your engine is equipped with hydraulic tappets. If you do not have oil pressure, these units will collapse and rattle loudly. There will be no doubt in your mind. Just start the engine and watch for the oil to start squirting back into the oil tank. You'll probably need a flashlight to see into the tank.
Posted on Jul 05, 2010
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Posted on Jan 02, 2017
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