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radiomike7 last won the day on March 28

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  1. That would have been a Ford 'D' series, possibly with an alternative gearbox or having the diff turned through 180 degrees.
  2. 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.
  3. 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.
  4. 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.
  5. Are they blind holes or through holes, if the latter the black gunge is probably a sealant to prevent oil leaks via the threads?
  6. Foden FD12 on You Tube, were they two 6 cylinder engines geared together similar to the Sherman twin Detroits?
  7. 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
  8. It shows the basic concept but not the angle of lead between the cranks. Working out the true compression ratio is quite a job.
  9. 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.
  10. 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.
  11. 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.
  12. Not horizontally or vertically opposed but opposed piston, other common examples are the Rootes TS3 and Napier Deltic.
  13. Exactly, there will be another camshaft on the other side.
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