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12 valve cummins

  1. 94-98 Powertrain
    I have a 1997 12 valve and i turned the fuel up getting close to a year ago and it has ran fine till a month or so and at a high rpm it misses and white smokes,Especially going up hill. And it takes awhile to pick up rpms in a higher gear the turbo is fine. I’ve replaced all 6 injectors and...
  2. 94-98 Non-Powertrain
    I have a 94 12 valve automatic with afc live, 3k governor springs and a new fuel pump. Before the modifications until current after an hour or so of driving it will buck and shudder then the throttle will kind of stick for a second and it will die. After it sits for a few minutes it will drive...
  3. 98.5-02 Powertrain
    Hey guys need some help identifying a borgs warner turbo i recieved recently with no name tag on it and then i am interested in injector suggestions for with it for my 96 p pumped 12 valves thanks in advanced turbo pictures and number attached
  4. 89-93 Non-Powertrain
    I want to know how I'm getting such lousy MPG. My truck is a 91 N.I. 727 4x4 stock height & suspension. 10 mpg cannot be right. Current mods - fuel pin, recently installed 366 spring last weekend and reset the power screw to its factory setting (counted the threads). Truck does have a leaky VE...
  5. Cummins Conversions, Shop Talk, Tools, Fabrication
    In a couple months I plan on doing a 12 valve Cummins swap on my 2005 Ford F-350 and I’m trying to figure out the fans. I’ll be getting a new mishimoto radiator and inter cooler and all. I like the idea of having more room infront of the engine and the little horsepower and mileage gain of the...
  6. 89-93 Powertrain
    I just got a 90 model non intercooled 12 valve donor truck. I had to get a new lift pump to get it started. Once i got it started it immediately tried to runaway/overfuel but i can kill it with the fss. I havent let it go for more than 5 seconds before killing it. I back the power screw out 3...
  7. 89-93 Powertrain
    I have a 1991.0 d250 and I've been doing some fuel pump adjustments, i was messing with the star wheel and playing around with it. one day when I went to take off the top off the housing it flew off, I just kinda shrugged and went to put it back on, but the spring (I think its called the...
  8. 94-98 Powertrain
    I have been battling this problem for awhile now.. I guess my question is, If I have the motor at tdc should I be able to see the timing tooth in the ppump if set at 18 degrees advanced? Cause I’m not seeing it in the hole at tdc
  9. New England
    Hey everyone, I’m new here and I have a couple of cummins, I have this 1993, a 2003 and a 2005. I have seen a lot of 1990s trucks similar to this one go for some pretty large sums of money and am not really sure how to price it for sale. I’ve seen many in the 10-15,000 range, and I’ve seen a...
  10. 89-93 Powertrain
    Hello all, i have a 1993 d150 in decent shape and a 1993 d250 that the frame is a bit rough. I'm wondering if I could switch all the d250 components including the 12v cummins, both axles, all wiring etc. I'm aware the d150 frame is 6 inch and the d250 frame is 7. I'm wondering if the half ton...
  11. 89-93 Powertrain
    Hey guys, could you please enlighten me on what these two cables in the circle are? The one closest to the engine is very loose and im sure its not supposed to be.
  12. 94-98 Powertrain
    Hello, I just purchased a 2014 12v with a vp44 pump. The engine only had 80k miles but I want to change it over to a p pump. Any suggestions on converting this 12v back to its original glory days? Will any p pump work? I’m also installing this engine into a 99 f350 with a 6 speed. Any advice...
  13. 89-93 Powertrain
    I got a 84 gasser 4x4 motor is going want to 5 speed 12 valve swap it it's currently a 727. I need to know how hard is the swap does stuff bolt right in or lots of fab I know it's not going to be a weekend project just want all the info. What will I have to do for wiring. Just give me all the...
  14. 94-98 Performance Parts Discussion
    alright so I have a 1994 ford f700 with a 12 valve 5.9l cummins engine and a commercial p pump with the oversize commercial DV s. I got pdd 250+ 5x0.018 injectors a molded afc foot took out the plate and installed the afc live with the big single max travel kit 30-45 psi. And I swapped out the...
  15. 94-98 Powertrain
    I’m sure this has been done a million times but I’m curious who all has been lucky and not so lucky
  16. 94-98 Powertrain
    So I bought my first diesel, a 1994 12 valve 4x4 today. I'm wondering what the best additives to use for fuel mileage are? I know that 2 stroke oil helps, but how much per tank, and does it matter if it's premium or not? Grateful for any help, thanks.
  17. my new 12 valve

    my new 12 valve

  18. 94-98 Powertrain
    Good morning, I've got a 1997 3/4 ton 12 valve 4x4 5 speed with 350,000 miles and counting. I'm pretty familiar with most of the free mods (AFC, P-pump work, boost elbow, etc) and would like some advice on a few other fixes. Truck was bone stock when I got it a few years ago. Since then I've...
  19. 94-98 Performance Parts Discussion
    So I bought a 1996 12 valve with a 5 speed after months of research for 6000$. the guy I bought it from gave me a laundry list of stuff that's been done to it. HX40 3rd gen turbo, ducky 175hp injectors, 3k gov springs, south bend dual clutch, rebuilt tranny new 5th gear, 5th gear nut, synchro...
  20. 2000 Dodge Cummins 12 Valve

    2000 Dodge Cummins 12 Valve

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