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BenHawkins last won the day on January 1 2019

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  1. I have blasted the ironwork and really liked how the blacksmith tidied up the corner by forge welding a triangular piece in. They have cleaned up well. Repairing the threads that have been cut off will have to wait for a later date. I briefly looked at how much it would cost to reproduce the body in oak as used originally. Some shopping around will certainly be required.
  2. This project has been on hold for too long, we hope to restart it later this year. The current project is a 1908 Singer (I could not come up with even a tenuous link to military for that one). I had one of the wheels rebuilt by an excellent wheelwright; he brought me a present for this Dennis along with the Singer wheel. Back in 1976 he rescued a dilapidated horse van that appears to have been identical to those used by Carter Paterson and as originally repurposed to the body for this 1908 Dennis project. The four parts are (top to bottom): 1. Shore Staff 2. Timber Standard 3. Tilt Hoop Iron 4. Outrave Stay I offered them up to the chassis and they look to be of the correct proportions so will be perfect to scale the body from. He does not remember using any of the other parts to repair any other waggon so they are probably in the spares stock somewhere. I am now really looking forward to another visit to the wheelwright during the summer to hopefully collect a boot full of other rusty treasure.
  3. I have photos on the day it left the factory and one in service and none of them show anywhere to tie ropes.
  4. In order to rectify a slight coolant leak I removed the water pump to add more gland packing. Whilst the coolant was drained and the pump was off I machined a boss, silver soldered it to the coolant pipe that feeds the cylinders, then drilled through and tapped it 1/4" BSP for a tap. This was in preparation for providing water heating to the carburettor.
  5. Thanks for the kind comments about this project. Looking at your lovely photo of KT665 it is a very similar age of lorry and could either be identical to mine or possibly the 30cwt version. The three ton did not have the offset in the front axle (outboard of the springs) so the chassis was a few inches higher up. Coincidentally I have been building a machine on this slightly lighter road rail trailer recently so the concept is not completely dead. The two ton lorry was fitted with 720mm wheels for 100mm wide tyres. I have include a PDF of the tyres to show the dimensions. Twin tyres were fitted to the rear. The chassis is made from 4" channel for the main rails, parallel along their length; back at the start of this project you will be able to see photos; the outside faces of the channel are 37-3/4" apart. There is a channel front cross member and a tubular member at the rear. An additional 3" channel frame is suspended below the main chassis to carry the engine and gearbox; this is pivoted at the front. It is 11'4" wheelbase and 5' track, the chassis overhang at the back was adjusted to suit the body style. Mine is shorter than typical at 15'6"; this does have certain advantages as far as garaging is concerned! I guess you don't need much space to get to two tons when you load with fruit and vegetables. What software do you use for your 3D CAD? I might be able to provide STEP files for some of the components, for example it should have this type of White and Poppe cylinder block (rather than the pair cast Aster I have fitted as the nearest equivalent). I would love to see your finished model. tyre.pdf
  6. Steering column detail showing worm and nut steering box. A selection of parts. Many of these I have, but it is good to have detail of the front cross member. Bonnet rest etc. And finally the radiator, this appears to show that I have the correct radiator. Although pretty good this parts book still appears to miss quite a few parts such as the exhaust silencer. Period literature described the T4 as a "J type in miniature"; although this might be true for the chassis construction there are many differences in the rest of the vehicle. At least we have a better idea of what all the missing parts should look like and therefore stand a chance of identifying them.
  7. Front Axle. At least I have most of these parts. I think this shape of axle cap (Part number 55312) is only seen on the T4 Thornycroft. The back axle built up in three layers is another feature that seems unique to the T4. A sliding block rear universal joint is used. I am missing this but as it is similar to the one I made on the 1914 Dennis at least I have had some practice. Brake drums and blocks.
  8. Gearbox. The N/S and O/S gearbox mountings look identical in the photo but have different part numbers. And quite a few parts to go inside the gearbox. Footbrake components And some of the parts on the outside of the gearbox
  9. And for me, this is where is gets most interesting. Parts diagram showing the cylinder block with fixed head and inlet over exhaust valve arrangement. Crankshaft, camshaft, oil pump etc. Oil pipes, magneto couplings etc. Flywheel, clutch etc. This does not show the fan blades on the flywheel (visible on earlier photo).
  10. Flywheel, clutch and universal joints. Gearbox, steering gear and brakes. Care of the back axle Side view of chassis
  11. Some good pictures of the T4 engine; perhaps somebody has one in their shed. Further information on the engine and some good views of the crankcase. A little information on fault finding A good view of the steering column detail, fuel tank and oil indicator.
  12. Now you can just switch headlights on it is easy to overlook how important lighting up tables must have been. Owners are advised to arrange for a vehicle to have regular periods in the shed. Some more driving instructions
  13. Although I have not done particularly well at finding parts for this project I have just managed to find one of the instruction manuals for "T" Type as described in the Thornycroft Monthly Circular. Page 1 would have given the revision date. It is unfortunately missing but is probably one of the least useful pages in the book. Page 3 gives the chassis dimensions and maximum permitted body dimensions. Examples of the three lighter weight chassis are given on page 4&5 And one of CP&Co BT vans is shown on page 6. It always seems to be the same picture of van 250 that appears in the adverts.
  14. I don't believe they are. I didn't even know they existed until we found some on the shelf in the archive.
  15. There was a lubrication diagram. The monthly circular also confirms there was an instruction book and a copy sent to all agents and with every chassis so I should continue to look out for one. Further references confirmed that the T4 engine was also used in large numbers for marine and generator applications.
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