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  1. H

    More Power From NHC 250 in M939 Series Trucks With Allison Transmissions

    https://quickserve.cummins.com/qs2/pubsys2/xml/en/procedures/18/18-005-024.html?q=+category:service language:en^2 005-024 Fuel Pump Fuel Rate with Throttle Shaft PlungerTable of Contents Adjust Adjust TOC To raise or lower the fuel rate, the ball must be removed from the...
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    Any old M113A1 mechanics out there? Just curious about a bus engine that might fit..

    Several years ago our company rebuilt 50 or so "powerpacks" for the M113a1. They were the 6v53 with Allison tx100 transmission that was bolted to the engine via a "cross drive". This configuration placed the transmission alongside and parallel to the engine, with the transmission output shaft...
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    M939 and M915A1 PTO info

    constant mesh backlash I would verify with the Muncie or Chelsea guys about the requirement or lack of, shimming or adjusting the backlash just because it is a constant mesh PTO. The majority of all pto applications are CM as opposed to "Sliding Input Gear", but I believe they all need...
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    Copper O-rings for glowplugs 003

    Any diesel injection shop will have a "junk drawer" full of assorted copper washers left over from various repair kits (I know the one I worked in had several), as well as "on size" or application specific individual washers. If you have a fuel shop in your area, and the sample washer to match...
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    More Power From NHC 250 in M939 Series Trucks With Allison Transmissions

    The "business" end of the fuel pump is the small "cone shaped" cover on the lower rear with four attaching bolts. Under the cover is a cylindrical tube that houses the orfice or "button" that controls the fuel "rail pressure", and the shims that govern the r.p.m. the buttons are marked with a...
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    More Power From NHC 250 in M939 Series Trucks With Allison Transmissions

    The 350 and400 engines are "NTC" family of 855 Cummins engines. They were configured as "Power Torque", "Formula", and "Fleet" designations, in a variety of horsepower, rpm ranges, and torque curves depending on performance, driveability, or fuel economy. Horsepower ranges...
  7. H

    starter help

    the nsn is 2920014917399 manufactured by General Motors (Electromotive Diesel Division) I`ll look for mor info...... Hasbeen
  8. H

    6.2 engine GSA score/fail?

    Will it spin all the way thru now? We supplied a LOT of 6.5 replacement engines to Uncle Sam, and the biggest complaint was "Engine Knocks"....in almost every case it was a bad (stuck) injector from water /trash in the fuel. I`ll bet you`ve got a win. May have a bug or two to work out, but like...
  9. H

    4l80E conversion controller questions

    The Current A M General part number is 12460144-6 this evolved for 4L80E as plain 12460144 (nsn 3010 01 411 8490) ...then dash 1 dash 2 etc. depending on generation and requirement of the transmission. Back when we were researching them the -6 had no nsn assigned (probably does by now)...
  10. H

    Mo noob needs recovery/info help.

    p.m. sent......(sorry for the delay (Texas Rangers had my attention) :grd: Hasbeen
  11. H

    Mo noob needs recovery/info help.

    JHoot51, I guess I`m as fouled up as you are, because I understood your post. :lost: I have friends in Fort Smith that operate a Heavy Duty Truck shop and parts store. They should have information that will help you even if indirectly. p.m. me if you still need the help and I`ll get you...
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    Sunday winching gone wrong...

    treeguy, I`m kind of like you on the "low speed" terminology. There`s still a lot of mass moving pretty fast. I`m not sure what the specs are on the pto ratio, but as a general rule a mechanical winch application would call for a ratio of around 50% of engine speed. Or maybe a little less...
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    Sunday winching gone wrong...

    doghead, Most likely the reason they were concerned about the length was due to it`s relationship with maximum r.pm. Most driveline guys are taught a term called "half critical speed" that governs the max length vs. max r.pm. The 120 wall tube and the fact that most winch applications are...
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    Sunday winching gone wrong...

    doghead, It appears that hard work and perserverance carried the day.:beer: Regarding your driveline damage and request for dimension, I would add to the equation the actual measurement of your truck from pto shaft to winch shaft. I`m not trying to get in your business, except that when I was...
  15. H

    Anybody use Milspray restoration paint ?

    I`m surprised that they would not sell CARC. Our company purchased it from them in Green 383 last year, until we found that we could buy it from our local Sherwin Williams (#s on receipt show 5012-32235 Gallon F93G105 MIL-DTL-53039C-T1) I`m not sure which portion of that is a part number...
  16. H

    Grote brand led tail light question

    We`re a grote Distributor in Dallas....here`s a guy at Grote that will help you. Matthew E. Drake Manager - Military Products - cage code 81834 http://grote.com/military/ I believe there may be some heat dissipation issues but I would ask the guys that engineered them. If you can`t get in...
  17. H

    m817 water pump, gasket or pump failure

    :grd: Good Luck ! Hasbeen
  18. H

    m817 water pump, gasket or pump failure

    highsiera, If you have trouble finding a gasket let me know. The Cummins part number is 130240 but they`re getting hard to find in the commercial world. We still rebuild a commercial variant of your pump, and should have seals, shafts,impellers,bearings, etc. Good Luck :beer: Hasbeen
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    Oshkosh FMTV

    I worked on a RESET project for FMTV a while back that had a lot of initial confusion regarding the powertrain availabilty. I never heard what the actual truth was, or credible facts. Supposedly, the 3116 early, and 3126 late cat engines were no longer available thru Cat factory due to Tier 4...
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    What Manufacturer??? "VOLVO???"

    Volvo A possible answer to the Volvo question. Cage code 2b157 (White Motors car and truck division) replaced by cage code 62265 (Volvo Trucks of North America) it wasn`t "Volvo" when it was manufactured...but the White company is now recognized by Uncle Sam as Volvo. So if the...
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