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About Injpumped

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    Advanced Member

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    Walnut IL
  • Interests
    motorsports, mostly tractor pulling, and drag racing. Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors.

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  1. I think he is just pointing out that not everyone is qualified enough to do the internal repairs themselves. Me being a pump rebuild shop, see this first hand. This thread his close to home for me, because so many think there's nothing to the pumps, and for a $40 kit they just did what I do. Getting something up and running again, versus rebuilding it are 2 different things. I've seen so many pumps "rebuilt" by the owner, or a neighbor that "did those in school" and those jobs are always more difficult in finding what the inexperienced did to it. There's a reason many shops won't even touch one that has been "just rebuilt" by the owner lol! Lots of you experienced tractor mechanics are very qualified to rebuild hydros or fuel injection pumps. I've learned over the years, not everyone has the same wrenching capabilities.
  2. interesting they give info for 5088 and 5288! They already expected many people to buy the 5488 inline pump to put on their smaller tractors lol!
  3. was this a fresh rebuilt pump from a reputable shop? or a new old stock one been on a shelf for years?? Or worked on by some fly by night "rebuild shop"?? Too many questions. This all makes a huge difference.
  4. Did it come with the return fitting & elbow installed in the back side? It should be calibrated with the fitting that will be used on it. Sounds like a call to the rebuilder is in order for tomorrow.
  5. some may seem shorter, but they are the same length, they are routed and bent that way to kill excess length on close cylinders.
  6. A pump and line system should have nearly identical length lines. A common rail system does not need equal length since the injector is electronically actuated as mentioned above. It seems to me early 4020's did have differing length lines. Other than those I cannot think of anything with unequal line lengths.
  7. Sounds like the Kalcevic clan, but they got 946's from yost in 89 I think. They normally bought the 17 from Prospect impl.
  8. When I build a .450 pump, which exceeds 400cc of fuel, then we order up a set of .093" ID lines. Many of these older tractors used .074, or so, but some did only have .062". At 250cc, the .062 will be close to being too small, considering the original spec on those was less then 100cc. The 361 seems to have had larger ID lines than the 407, at least the 1456 I think had the smallest, at .062", trying to cut down on smoke.
  9. So, I understand how 2 cycle gas engines work, and 2 cycle diesel Detroits, require the blower to scavenge the cylinders. But, and diesel 2 cycle without a blower? I'm interested in seeing how this thing operates. Looks like it's a singe cylinder?
  10. The AC forum has a garden tractors section. Not sure if any of those guys, Simplicity guys too, cross over. Like most of us, they aren't color blind lol!
  11. Likely has the rack stuck from sitting in old fuel. But, that is not a P7100, it's just a Bosch A pump. Be glad it stuck in the shut off position. Had it been sitting in the start fuel position, it may have run away!
  12. Just clamp a big vise grips to the control rod, so they lean in the fuel off position, (racks out of injectors) carefully move the vise grips to open the fuel delivery while cranking. Be sure to have a steel plate or piece of thick plywood ready to cover intake. They run away when a rack sticks wide open.
  13. That is a true Perkins. The one the op has is a Japanese built Ishikawajima engine, marketed through several different outlets. It's also a much smaller compact engine.
  14. removal is pretty basic. May need to remove a shut-off solenoid from the back side, take lines and mounting nuts off, and lift it up enough to reach in an remove the hairpin clip, if I remember right. Those were marketed as Perkins, and Caterpillar, but they are actually made by Ishikawajima lol! Lots of those in Cat skid steers, and mini exc.
  15. Those are called PFR pumps, and they come out of the block, after you disconnect the rack link. Looks like a Zexel KX to me, and they are known to leak fuel ouot from under the barrel flanges. I'm now able to work on PFR's, but am a few weeks out right now. I keep the orings in stock, changed to a better material. That is not a user serviceable pump. The bolts are pentagon shaped for a reason lol!
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