Posted by UP Oliver on October 25, 2013 at 09:20:01 from (208.68.25.63):
In Reply to: Fuel in oil posted by John Kalepp on October 25, 2013 at 05:08:27:
I had the same problem (for a long time) with my David Brown 990. My leak turned out to be through the thermostart (if that is the right term) on the intake manifold. There was a little tube that went from the fuel tank to the thermostart, and the leak in there just got worse over time. I blocked that off and so far my oil level is staying where it should be.
Before I blocked that off I was told to take my lift pump off and put a container under it for awhile to see if it leaked, still hooked up to the fuel system. (I actually bought a new lift pump before this, that was not the problem) I never saw a drop there. Another suggestion that was given to me was to drop out the oil and take off the oil pan to see if I could tell where the fuel was coming in. I never did that but wish I would have done that first, because I would have known it was not the injection pump. I sent that in at one point and spent $50 to have the front seals replaced because someone told me that had to be the problem if the lift pump was OK
I also had this problem on my Oliver 1755. That turned out to be a leak along the outside of the shaft tube in the injection pump; I could see it leaking down from under the injection gear and the pump guy had just replaced the seals. I sent it back and he found the leak on the outside of the shaft tube.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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