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David Herbert

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David Herbert last won the day on January 19

David Herbert had the most liked content!

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About David Herbert

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  • 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

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  1. I love the comment at the very end - very much of its day ! David
  2. I have no connection to and have never met William Suttie but I found his book to be packed with information that I find interesting and is also very well laid out and easy to read. I thoroughly recommend it if you have a technical interest in armoured vehicles. It is also not very expensive and easy to find on Ebay ! David
  3. Relating to paragraph 2 of my post above, I have just checked and clicking on 'Mark this thread read' still opens the thread rather than deleting the 'unread posts' blue dot as it should. David
  4. This FV432 is indeed one of the prototypes and is significantly different to the series production ones. Its registration is actually 216 BXR which is has always carried. It never had an army registration though the Pre-Production FV430s (with 'W' numbers) did have army registrations (from 03DA04 to 03DA30 I believe). It has resided at the Bo'ness and Kinneil Railway near Edinburgh where that photo was taken but is being returned to Bovington. Once Fv432 production was established P4 went to FVRDE at Chertsey where it was used for experiments into hydrostatic steering transmissions and other p
  5. My personal opinion is that wheel nuts should be lubricated so that the tightening force is used to clamp the wheel onto the hub, not to twist the stud. I have never had a greased nut come loose but have had rusted ones which had worn the countersink in the wheel because they could not be tightened into it properly. On any vehicle I always put a smear of grease on both the thread and the contact surface on the back of the nut and then tighten them good and tight by hand. Richard has provided torque figures but these are meaningless if the threads are rusted. I agree that if the threads ar
  6. 25HP seems very low for any version of a Ford V8 engine ? I think that I would have wanted a much longer push bar on the mine exploder - say about 100m !
  7. I am looking at HMVF on a PC running Linux Mint. I see quite a lot of minor changes to colours and text layout which I will presumably get used to but I note when I look at a thread that I have looked at before, there is now a line drawn across the page under the posts that I have already seen, thus highlighting those that have been added. Good idea ! I also find that, in the list of threads, if I hover the cursor over the title of a thread so that the preview window appears, if I then click on 'mark this thread read' button, instead of just deleting the green (or is it blue now ?) dot, i
  8. The track rod ends of my Range Rover are locked in exactly the same way. I have just had to change one for the second time so I was very glad that I had greased it all properly the first time ! David
  9. Ian, I think you will find that the tires are actually polyurethane. This is usually supplied as a two part liquid that needs to be mixed together, de-gassed (bubbles removed in a vacuum chamber), and then poured into a mould. Most companies doing this sort of small numbers work make a very basic mould and then turn the required profile with a big lathe and a very sharp tool. Alternatively it is possible to make a mould out of, say, fibre glass which could enable an exact copy of an original tire, complete with writing, but of course the man hours add up then. Polyurethane is available in
  10. Well done for filling in your location, it makes it much easier to advise. I think that losing three tires all on the same side was probably a fluke but it is possible that the first one lost its tire and that got between the horns and the other tires and pushed them out sideways but there is no way to tell. A classic mistake is to tow the tank without the tracks on and to try to turn it. That makes the wheels skid sideways and often rips the tires off. Please let us know how you get on as this is going to be a problem that many people will have. David
  11. The problem is really the age of the rubber and the amount of use that it had already had. When you were in the field you would probably not have been doing the sustained speed that you did on the road and also the field would have been softer than the road, putting less of a washboard type load into the tires from the transition from link to link. As a stationary tire is loaded the rubber spreads in all directions and would recover to its original shape if the load was removed. However, when driving, the rubber in front of the contact point becomes the next bit to be loaded which has the effe
  12. There are a number of very similar videos of it on YouTube. It is certainly restorable and not far from a range access road as can be seen on Google Earth. David
  13. I would guess it is from a British 1930s light truck. The bigger manufacturers tended to make their own (particularly Ford) so that just leaves a couple of hundred possibilities. Someone will really need it but how do you find them ? David
  14. Indeed ! Grover washers are heavier and have a grove in the outside edge. David
  15. Or turn the link end for end but not upside down as I suggested earlier ! David
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