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hummermark

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About hummermark

  • Rank
    Staff Sergeant

Personal Information

  • Location
    Hertfordshire, UK
  • Interests
    Military Vehicles...
  • Occupation
    Heavy Recovery

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  1. If you need a piston when rebuilding i know where there are some.
  2. I can get the Whenever requirements for camouflage and concealment outweigh the requirements for recognition, the national symbol may be covered by lusterless olive-drab gasoline solvent paint, camouflage nets, oil and dirt, etc., or will beremoved. but the half track in the picture has a big white star on the hood so I do not think the small black star on the side is done for concealmen?
  3. I thought shipping dimensions but the first line is quite long and out of proportion to the usual shipping dimensions I have seen?
  4. I see on the half track just past the drivers door towards the rear there is a small black star within a yellow circle. why the black star not white? what would be all the stenciling past the black star towards the rear?
  5. Hi what's the brown stuff you have used between the running bord and step? I presume it's some sort af anti corrosion coating.
  6. Hi I have rebuilt 6 6046 twin packs with 2 valve heads and dynoed 6 engines with the n80 injectors fitted in two valve head but all engines had the later bigger port liners run fine. on a 4 hour full load run 245 hp 601 foot pound torque 2083 rpm blower pressure of 5.02 psi exhaust gas temperature 564 centigrade 1047 Fahrenheit.(each engine is nynoed on its own from a 6046) n80 and 4 valve head gave more hp and torque should have measured decibels in dyno room at full load that would be high! As you say would not want to run n80s with the original liners small surface area compared to the modern ones. the low block block does obscure the base of the new liner ports slightly but I have a military manual that says to grind the block to clear I have done this on a 6046 but made no difference on dyno results. the injector arms if you grind/machine a notch to clear injector body works fine . no external fuel rails is not a guarantee it is a 4 valve head 6-71 cylinder head casting number 5108548 has built in fuel gallery's and is a 2 valve head. there is various mods that I do to the heads for more efficient cooling on the original 2 valve heads as recommended by Detroit ,better as with n80s injectors will be getting more power =heat than the ww2 setup. if you like a visual clean exhaust then go for n65 injectors and 4 valve heads do not know what hp that will give you as have never dynoed that set up but did know of a gun carriage set up like that very clean exhaust.
  7. Hi N80s £130 20 in stock that's a non exchange price if you have old n80 injectors £30 less per injector
  8. Hi You can go to your nearest detroit dealer and buy n80 injectors easy enough or is it some other type of 80 injectors you need?
  9. If you convert a 2 axle 5th wheel military expandable 1969 trailer in to a caravan only no load space or items carried that is not incidental to living/staying in caravan gross weight 6500 kgs what mot is needed ie car mot like motor homes over 3500kg or goods vehicle test and plating or does it even need a mot?
  10. Pioneers is the one I was thinking of how you get it to be road worthy with no front brakes, I presumed there was a class it came under that allowed it to be used on the road with no frount brakes.
  11. Does anyone know when you can use a vehicle over 3.5 ton with no frount brakes fitted? Or any class of vehicle that exampts you from having them which is powered by a internal combustion engine? this is so you can use the vehicle on uk roads.
  12. Hi went to look at this today it is a bmk-150 not the bmk-150m which is the twin engine diesal version which also weighs more 3.8 ton the bmk-150 as in picture has 2 flat head six cylinder petrol engines in it. weight of the bmk-150 is 2.5 ton with no brakes on the retractable road wheels need some thing large to stop it in military use.
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