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David Herbert

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David Herbert last won the day on November 4

David Herbert had the most liked content!

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About David Herbert

  • Rank
  • Birthday 04/02/1954

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  • Location
    Ayrshire, Scotland. previously Suffolk
  • Interests
    Heavy armour, plant, narrow gauge railways.
  • Occupation
    Retired engineer / odd job man
  1. bedford mk tyre change

    I think that the safety aspect is possible to cover with the aid of common sense and good research. However changing large tires that don't want to come off the rim is unbelieveably hard work without specialist kit. They just suck the strength out of you. I suggest that you do the first one by hand and then take the rest to a commercial tire fitters while you recover. Have fun, David
  2. WW1 Thornycroft restoration

    Those body mount brackets look great. You should have had an extra box type one to keep on your desk to cheer yourself up with. David
  3. More SS Thistlegorm Cargo

    I think that the circular feature on the trolley in the image above is actually the turntable that allows the front axle to turn on a vertical axis for steering but not to move in any other direction. It would have been of very simple construction with sliding contact (no rollers or actual bearings) and lubricated by grease occasionally. The apparent different diameters of the front / back wheels is possibly due to the smaller one having gone flat and the bigger one not. My lawn mower tyres are noticably bigger when properly pumped up. I have an ex-MOD trolley with a flat wood top. It is slightly smaller than this one but otherwise very similar construction. Any workshop or warehouse facility would have used these trolleys as fork lift trucks were not universal in those days. Also there is a structure across the top of the image to the right of centre which may well be a torsion bar suspension axle assy from a Brockhouse trailer. These commonly had a refueling tanker body used by the RAF but there were also other bodies on the same chassis. It is possible that the other pneumatic tyred wheels and the section of chassis could be from the same trailer. This research that you are doing is great - the more images that you can share the better ! David
  4. New Format

    One of the problems with a thread like this one is that people who are unhappy have much more motivation to complain than those that are happy have to compliment. I think that the automatic preview of a thread when you hover the curser over it is a big improvement over the previous version. Also it is a huge improvement that after posting and the screen returning to the thread (with your new contribution showing as the most recent) if you press the back button you go back a level to the list of threads, not to the page where you were writing your post as used to happen - much easier. I think that the biggest thing that I miss is the location of people showing on their posts. As we are a very international forum it is usefull to know that they are on the other side of the world or if English is probably not their first language before commenting on what they have just written. Once again I thank those that keep this forum going for the considerable number of manhours that they put in normaly, quite apart from the vast amount of extra work that the recent change has caused. David

    An old trick which I have used very successfully is to remove the spark plug and thread a foot or so of soft rope through the hole. Then turn the engine gently so that the piston pushes the rope against the valve and stops it dropping. When you have done, turn the engine the other way and pull the rope out. This works brilliantly on lesser engines but would get a bit tedious on a Meteor ! Obviously it doesn't work on the exhaust valves of early landrovers or B series engines or any side valve engines. I have also used it to lock the crank on lawnmower and chainsaw engines when undoing the flywheel nut but you need to use enough rope that it goes solid at roughly mid stroke to get the best leverage. David
  6. Diamond T's ?

    I think they are 2 axle tractor units with semi trailers. As I see it, some are not quite in line with their trailers. I also don't see them being as big as DTs or Macks. If you were to prove that they were Bedford OXCs I could believe it but I think they are a little larger than that. David
  7. Pierce Arrow ww 1 truck for sale

    Looks to me that the camo pattern has been mostly sprayed. Not impossible for WW1 but very unlikely I would have thought. Potentially a very nice truck though, will be interesting to see who wants it at that price. David
  8. WW1 Thornycroft restoration

    There is no reason that the casting cannot be cast with its flat back face down. That way the core cannot float away. Alternatively the core could have been made an inch longer at each end so that it is fully retained in the mould. Looking again at the photos of the original castings I am wondering if they all originally had the box shape, but that the two without the 'box' had either been deliberately or accidently modified, maybe by over tightening the through bolt ? David
  9. Welcome back!

    You deserve it Oh Great One !
  10. Welcome back!

    It is only when reading this thread that one realises how many individual decissions must have been made in setting up the new HMVF. It seems that everything is customisable and always defaults to the wrong settings ! Well done for battling through ! I do find that there is now much less on a screen at one time. It is not so much that the font size is bigger but that there are much bigger gaps between lines and, well, just about everything. I am using Firefox on a PC and it is a little like browsing on a mobile phone. Others will probably prefer it but I prefer a lot more to be visble at once without scrolling. No, I have not accidentaly changed the screen magnification - all other sites are normal. I am glad the ranks are back - I was just beginning to get somewhere ! David
  11. I found google translate worked well on the site itself. The site is really a forum with individual links to where the actual manuals can be downloaded. There are other similar sites with the same links on them but this one seems to be relatively easy to use and has a huge list of scanned manuals, including quite modern British and American ones! Obviously you need to watch out for unwanted browsers and other crap but just study every new page before clicking 'next'. You will need software to open RAR and Dejavu (probably not spelt like that!) files. These are much better equivilents of PDF and ZIP and work very well producing much smaller file sizes and so faster downloads. This software is easily available as free downloads but again watch for 'extras'. The only problem that I encountered was that a few of the manuals were rather poor scans with sections missing but as they are free one can't moan really. A great resource if you are semi computer literate like me. David
  12. Re the brass stud, it looks like there was more to it but it has broken off. Could it have been an earth bonding point with a copper earth braid going to the door itself or even the A post ? David
  13. RAF vehicle camouflage

    I am not seeing your photos but at the start of WW2 Fordson tractors were painted orange all over for the civilian market. It quickly became clear that a field full of that days production on the edge of London made a rather good marker for the german bombers so they changed the colour to gloss dark green all over. I am not sure if Ford picked out the Fordson script on the radiator in yellow/orange but it is very common on restored ones. David
  14. Scotland to Ban Petrol and diesel car sales by 2032

    For comparison, a L322 Range Rover (the previous shape to the current ones) weighs 2.6 tons, has a fuel tank that weighs just over 110 kg when full of diesel and has a range of over 500 miles in the real world. Battery tech will have to improve quite a bit to compete but it is not impossible. The Apple car will of course have its own charger connector that is very special and only available from 6 major city centre dealers. David
  15. Scotland to Ban Petrol and diesel car sales by 2032

    In general I agree with Paul but it should be said that the only reasion that electric vehicles are relatively cheap to run is that there is vastly more tax on petrol and diesel than on electricity. Obviously the huge subsidy on the purchace price of EVs and their even bigger extra initial cost will gradually come down as production volumes go up but that will be spoilt by the government inventing a way to tax their use. This is something they will have to do to replace the vast income that they presently get from fuel related taxes. As you can't identify taxed and untaxed electricity once you have charged your car with it we will then have to have a system of charging for the actual use of roads, probably by a GPS black box, which will also know when you exceed the speed limit and can automaticaly fine you......... . Similarly, solar panels are only relevent if they are heavily subsidised as they are now (and you use them to feed electricity into the grid in exchange for other electricity that you charge your electric car with overnight). Yes they will also get cheaper to produce but the subsidies will reduce too. I think that although it is certain that we have to vastly reduce our use of fossil fuels there is a huge cost increase in any of the alternatives and we are just going to have to get our heads round that. One positive suggestion I have is that when battery tech gets to the point of allowing a genuine range of at least 500 miles in a vehicle that still has some luggage space and is affordable, that it should be possible for manufacturers to agree to standard formats for replacable battery packs. We could then buy a car with say a 5 or 10 year lease agreement on battery use. when the battery needs charging you either do it yourself at home or go to a "filling station" as we do now and physicaly swap the battery for a fully charged one. That way the batteries that are life expired can be the responsibility of the battery company and will not result in the scrapping of the rest of the car on purely economic grounds, the battery change over should be quicker than it is at present to fill a car with liquid fuel, and we will not all need to have charging facilities at home. It would also mean that automotive batteries could be taxed...... And stolen ! David