Posted by girroj2 on March 11, 2017 at 13:43:24 from (71.10.243.110):
Hello, I am working on a 1964 or 1965 John deere 2010 Diesel (serial number tag is missing). I have no history on it. The roosamaster injection pump (DBGVC429---2DH) was not tightened down-so assumed timing was lost or incorrect anyways, and took the pump off to replace all of the seals. I carefully replaced all of the seals in the injection pump, and went to install the pump and set the timing, (#1 at TDC of compression, D/C mark aligned with bell housing) but found that the timing marks on the pump were impossible to align with the limited travel of the pump housing to engine block with the 2 pump housing bolts loosely installed-timing marks on pump are off by just a few degrees with maximum travel of pump housing relative to engine block. I figured that someone may have installed the oil pump gear 1 tooth off; so I removed the oil pump, and installed again 1 tooth off, but I was even further off in aligning the timing marks the other way-this was not the issue. I took a closer look at the injection pump-and nothing is clear to me as to how I could have re-assembled the pump allowing for only a few degrees off (could have installed 180 degrees off, but not just a few degrees?). I"m a little concerned that someone may have installed the cam to crankshaft a few degrees off-but couldn't see any witness marks on cam or cranshaft gears to confirm. Does anyone have any ideas on what could be going on, and what to check next?
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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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