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radiomike7

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Everything posted by radiomike7

  1. radiomike7
    Never seen that type of compensator used on a tandem rear, the usual way was a simple rocking beam between the springs. It looks like the chassis brace was extended to catch the springs if the chain failed. Either way was not a great success as linking the rear of one spring to the front of another forms a reactive system that transfers weight from one axle to the other under acceleration and braking.
  2. radiomike7
    Did it belong to Dawson or is it just in their livery, they are still in business and may have some information about it?
  3. radiomike7
    I think it might be this one.
  4. radiomike7
    It is a Kenworth cabover that belonged to a recovery company in Bristol.
  5. radiomike7
    Checker plate is a generic name for an embossed non slip plate, the OP required a certain pattern called diamond rather than the more common 5 bar.
  6. radiomike7
    Correct, still available if you do an online search.
  7. radiomike7
    Like this?
  8. radiomike7
  9. radiomike7
    Good point but it would have been necessary to clamp against a mandrel exactly the same diameter as the half shaft.
  10. radiomike7
    Does it have a speedometer or a tachograph?
  11. radiomike7
    That's the one you had originally which worked.
  12. radiomike7
    That's a heavy duty box from a motorised scraper and with straight cut gears would make quite a din. What are you trying to achieve?
  13. radiomike7
  14. radiomike7
    That would have been a Ford 'D' series, possibly with an alternative gearbox or having the diff turned through 180 degrees.
  15. radiomike7
    There has been an AEC LD55 on E bay for quite some time: https://www.ebay.co.uk/itm/AEC-Dump-truck-scammell-LD55-quarry-lorry/292857562079?hash=item442fabc3df:g:25oAAOSwEJ1cDNen Chassis numbers DN099>539 were AV690 built at Aveling Barford, BHV10001>10355 were built by Thornycroft at Basingstoke while WHV10400>10731 were built by Scammell at Watford including the later mk2.
  16. radiomike7
    Yes they did but could be tow or push started, there is one on YouTube that had stood for 15 years and started with a tug from a loading shovel.
  17. radiomike7
    Care to elaborate, they have large quantities of vehicles available, mostly ex MOD but also deal in new LR products most of which are for export only. Company is Witham, no 's' and they lost the sole ex MOD dealership last year when Brightwells took over.
  18. radiomike7
    Are they blind holes or through holes, if the latter the black gunge is probably a sealant to prevent oil leaks via the threads?
  19. radiomike7
    Have they sorted the leaks yet?
  20. radiomike7
    Foden FD12 on You Tube, were they two 6 cylinder engines geared together similar to the Sherman twin Detroits?
  21. radiomike7
    Interesting sequence of a Deltic overhaul, imagine the cost involved compared to a conventional loco engine. Check out the repair history at the end, it was removed from a loco about 30 times in a 20 year period. http://napier-chronicles.co.uk/power_unit_6.htm
  22. radiomike7
    It shows the basic concept but not the angle of lead between the cranks. Working out the true compression ratio is quite a job.
  23. radiomike7
    Yes and no, if the price of fuel is not an issue then it makes sense but the two stroke cycle is not as efficient as a four stroke, ask anyone who has run a Scammell Crusader or a Bedford TM with a Detroit. Even with conventional cam driven poppet valves for the exhaust the Detroit was behind a four stroke. I believe the emissions were mainly a problem caused by the excess oil in the bores needed to ensure the rings did not seize when passing the inlet ports, the Deltic locomotives were known for oil fires in the exhaust drum after a period of idling.
  24. radiomike7
    Having the lower crank rotating in the opposite direction was the only way the correct piston phasing could be achieved between the banks, not to dampen out vibrations.
  25. radiomike7
    Lycoming developed a 12 cylinder 'Boxer' that could be mounted horizontally in a bomber and vertically in a fighter but the concept is thin on the ground as you suggested. Deltic was 6 cylinders long with 36 pistons or 72 in a Deltic loco that had twin engines and generators. It was initially developed for marine use in fast patrol boats.
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