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  1. jimk

    Armor pictures from '68-'69

    The blue tipped rounds are target practice 90mm APBC-T (armor piercing ballistic cap tracer). Projectile is solid shot with a windscreen (not a shell). They weigh about 23lbs and have a muzzle velocity of about 2,800 ft/s (1,900 mph). I think they are identical to service rounds and may have...
  2. jimk

    What did you do to your deuce this week?

    I like that idea. How did you attach it? Take it apart? Screws or nut/bolt?
  3. jimk

    Bounce bounce?

    Update- Well, buffing got rid of 80% of my problem. Balancing cleaned up the rest. Method- lightly oiled bearings (5weight), no seals, axles, shoes, 2 lug nuts... then let the wheel rotate and come to rest from each direction. Accurate to 4oz (2oz if you like to fuss). Two of the buffed tires...
  4. jimk

    NHC250 Cummins fuel rail pressure

    Thanks for asking. Installed button #20. Easy job thru the starter access panel. Seems stronger, better thru mid range... Makes about 2psi more at higher rpm, maybe 18psi at redline. Not much smoke. Probably could have done #17. Fuel rail pressure is 225psi at WOT at 2100rpm. EGT seems about...
  5. jimk

    Turn up fuel, need help, on side of road

    Slow on hills is normal for a loaded truck, even commercial big rigs with bigger engines, 10-14 gears, intercoolers, 40psi boost, and areo. Most of those trucks you see flying up hills are lightly loaded or empty. The load inside a 53' van can be 4-1/2 times the weight of an empty trailer (or a...
  6. jimk

    Who's V100 ?

    I don't know how smart it is to drive around town in a privately owned APC sporting a manned, uncovered, machine gun after firing 500+ 50 cal rounds.
  7. jimk

    24 volt trailer wiring to 12v Using Relays Diagram

    Here is what I had drawn up for someone. Not as pretty. There is a 24relay for the e-brake control and lights (my trailer has separate turn signal and brake lights). I used a 25' 12 gauge extension cord from Home Depot for the 12v harness to the back. The auxiliary socket is to left of the...
  8. jimk

    NHC 250 Injector and Valve Adjustment Issues

    Easy to remember when you look at the intake manifold. Those 3 ports feed into the middle of each cylinder head (rocker boxes when you're looking from above). The intake ports are Siamesed in the center of each cylinder head.
  9. jimk

    NTC 400 Mo Power

    What's rated power for "stock"? I have a NHC250 w/turbo and no intercooler. I won't able to make the boost 400 does due to high charge temp. I'm looking for 290-300hp, that's assuming the EGT is ok. I may try a #20. I turned the throttle shaft screw 1-1/4 turns. Not much change.
  10. jimk

    NTC 400 Mo Power

    I'd like to know what button #'s are being used in various engines. ex-NHC 250 -#27
  11. jimk

    818 now with turbo and pics.

    Fuel pump stuff. http://www.steelsoldiers.com/5-ton-up/73444-nhc250-cummins-fuel-rail-pressure.html
  12. jimk

    NHC250 Cummins fuel rail pressure

    Progress report- Here are some pictures of the button and associated parts. There is a small washer (not shown) in the cyl. for the end of the small spring. My button is a 27. It is the correct ones according to the calibration code on tag on the top of pump. The local Cummins dealer had some...
  13. jimk

    balancing 37" and 36" hummer tires.. not working out

    I had some out of round 1400x20 tires that were bad at 35mph. I just had them biuffed at a recapper. http://www.steelsoldiers.com/5-ton-up/72422-bounce-bounce.html The bounce is about 80% better but still not perfect. Seems no one will balance them. I got some truck wheel weights yesterday...
  14. jimk

    how to turn up fuel...in pictures?

    Looks like this never got answered. My non-turbo (LD465) was weak and a smoker. I added the D turbo and it got very strong with high EGT, over 15psi. I turned the fuel down a couple times, 2-1/2 turns total, now makes 13psi at 2500rpm w/safe egt. It is still very strong. Much less smoke too. The...
  15. jimk

    NHC250 Cummins fuel rail pressure

    Power is good. Yes it is turbocharged. Why is that important? I have low EGT and want to increase the power, maybe 10-20%. If I add fuel the boost, charge air temp and EGT will all go up. I feel it can easily tolerate another 200*F. TM 9-2320-260-34-1 page 5-1 said I have a PT and AFC...
  16. jimk

    NHC250 Cummins fuel rail pressure

    I think not. The no load governed speed is supposed to be 2400rpm. Under load it's currently 2200, though I have only gone that high a couple times to check it. I think the pressure drop is the response to me backing off the throttle so I don't get to many rpms. Me too
  17. jimk

    NHC250 Cummins fuel rail pressure

    That's helpful. What is this restrictor plate? What can be done with it? What is an AF screw? What is that throttle shaft screw used for? I'm still at a loss for determining if my fuel pressure is off. 50psi is a long way from 170. Do I look at the gauge while I drive it?
  18. jimk

    5 ton rear axle seal fix procedure

    Thanks jpekarek. Some other suggestions: Use the correct tool for the bearing nuts : 250-400ft*lbs Always replace oil soaked linings. They will bleed oil when the get hot. My local brake shop got linings for $66/axle and $6/shoe to install them. Check the adapter to hub bolts, even if they...
  19. jimk

    NHC250 Cummins fuel rail pressure

    I dunno. I'm still not sure how to test the rail pressure. Maybe it has to be done on the test stand. I plan to change the button next. Lance R sent me this link. AWOL member Joethemechanic's interesting post #5. http://www.steelsoldiers.com/5-ton-up/12861-m818-questions-new-member.html
  20. jimk

    Lets See Your 5-Ton!

    ...No Trucks...
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