Posted by Bob Farrell on April 23, 2008 at 07:07:53 from (76.193.83.88):
I have a 424D that "pressurizes" the fuel tank after running for a while. The tank cap looks to be original. It is about 2 1/2 to 3" tall with two tangs to engage the tank filling spout and has a seal gasket. Stamped into the top of the cap is "Buy clean fuel-keep it clean".
I filled the tank with diesel to about 90% and ran the tractor about three hours continuance - bushhoging. Tractor ran perfect. Shut the engine down (after idling for a few minutes to cool) and removed the cap to refuel. The pressure released from twisting the cap off almost blew the cap out of my hand. Looking at the cap I can find no venting mechanism. Never had a tank that "pressured up" before.
What do I do? What's the cause and cure? It's got to vent somehow or the tank would form a partial vacuum as the fuel is reduced in the tank. But, why would it pressure up? Thanks! bob f.
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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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