Posted by olgentdc on July 05, 2017 at 20:26:26 from (184.16.188.157):
this is a recurring problem ,,and i dont want it to mess me up again this fall. i need diesel tech fellas that are familiar with a perkins problem ,.. and maybe i do not have a problem ?,,,,Now ???? , so here goes ,. because scarcely a drop is coming out of it,,,. i have the fuel return line disconnected just draining on the ground as i piddle with a few acres of wheat for my neighbor . i would bet that scarcely a water bottle has been dript out in a hour of running,,. Now here is the History of this durn thing //// 4 times in 5 yrs the injector pump has sheared the rotor off,.. the last 3 times i complained to the rebuild shop that it appears to be over fueling,. my man in seymour ind sends this pump out ,, and i began to lose confidence 2 rebuilds ago.. the last= time the injector pump does not seem to be over fueling as bad ,, and sadly each time his rebuilder charged me Parts only ,,..each time for a broken rotor stating that water caused this ,well i don't know BULLLONEY !!!,. each time i changed out filters and never found the slightest bit of water in the bowls or any likely place it could be found ,we all gathered intelligence here on the forum and it was mentioned to chek the fuel returrns , the thought was that if the returns are stopt < > plugged /then the pump could harmonize /rattle and shear the rotor from back pressure ??? ,,. i have not even seen what the little rascal loox like . and i have time and again ,cheked the line to the tank ,,. IT is clear and whistle blow thru with no resistance whatsoever , , the return lines have been loosened on all injectors and when the motor running scarcely a drop of fuel comes out and barely dampens the area with fuel around the base of the injectors, there is some evidence of fuel , Maybe This is the Nature of a Perkins pump ,,. but that pump return is not acting at all like the 4020 deere , or any of my Case Diesels fuel return lines,,. i have loosened the return lines and scarcely a return drop anywhere after 10 minutes idling and moving around heads just looking for a problem , there should be fuel laying all over the floor of the engine compartment ,creating a fire hazard ,, there is none and another thing,,.. after 30 days the pump will loose prime and require repriming or a ether shot to bring it back ,,.. but that has been a likely problem with a less than perfect seal at the filters that iscommon to these combines with long fuel draws , lift pumps and the in line filter rite out of the tank ,,. please ask me more questions because i needto get to the bottom of this this is making me miserable worrying this 750 is gonna let me down again
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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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