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jimmcc1963

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Everything posted by jimmcc1963

  1. I have the same problem with my truck since I just replaced the injectors with brand new RV 275s. Truck is a 2000 with airdog 100 and new vp44. I watched the install video on this site and just read mopar 1973 man's write up on it. Unless I had too much to drink yesterday they seem to conflict. The write-up says to torque injector hold downs first then put feeder tubes in and torque. I did it the way the video describes and tightened injectors to @44in. then backed off and torqued lines and then set injector hold downs to 89in. Injectors have been in for a week and when I let the truck sit for 3days I had to crack lines to start. ON advice from another site I parked truck down hill last night and it seemed easier to start. I have seen new feeder tube o rings for close to a buck. TB diesel sent me o rings for .40 a piece but they seemed much skinnier than the ones I took off. The3 tubes popped in easily and I wonder if this is my problem. Also I may have over torqued the feeder tubes I am heavy handed. If I back off and torque again will any distortion be repaired? When I installed my injectors even with oil on the o rings they did not seat by hand. They required a great deal of pressure I actually pressed them in with a rubber mallet. I didn't hammer on them just applied leverage to the mallet then they popped in. Once in they rotated to line up fine but after reading and watching the install info again why would mine have not pressed in by hand. No one seems to want to answer this on but my high pressure lines are pretty pitted. I see no fuel leaks but my question is if they were leaking from the lines; not the ends, wouldn't I see it at high rpm when engine is running? Also I am still confused on how one injector line or feeder tube leaking can cause the vp44 to loose prime. We also have a common rail motor in another truck and I understand how one leak on that motor causes the whole rail to bleed down but aren't the lines or circuits for lack of a better term on the vp44 separate? Somewhere on this site it says don't be afraid of dumb questions but here comes one! If the feeder tube creates a positive seal in the injector body as I believe it should why is there a return port in the head on these motors? BTW other that the hard starting at this point the truck seems to run excellent and has plenty of power. Thank-you to anyone who takes the time to answer.