Posted by UP Oliver on June 07, 2016 at 12:27:12 from (68.70.134.87):
I have a David Brown 990. It was working fine until late last fall when my wife was brushcutting, I was putting metal on the pole barn and could hear the tractor start to labor out in the field. I have more exhaust than usual, and a lack of power. It sounds like it is missing, but I am no expert on what that sounds like. Also, it misfires when I throttle up.
I have replaced the fuel filters, disconnected the air filter for a quick check there, I have used the dope (as one guy I know calls it), Diesel 911, Diesel mechanic in a bottle and Seafoam. I don't see any leaks anywhere in the fuel lines. It still runs poorly.
I don't know what the next step should be. My manual says to bleed the fuel system for misfires among other things. When I have bled the system in the past, once I get it running there has never been any problems like this so I doubt that is the problem? Wouldn't mind some advice on that.
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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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