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dgrev

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dgrev last won the day on January 15

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About dgrev

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  1. WW1 Thornycroft restoration

    Ha, another perfectionist! Mobile phone cameras held vertically drive me up the wall too. That and the fact so many people appear incapable of keeping the subject of the video in frame, but instead wave the phone/camera around, point it at their feet, the sky etc. I do note, that in the videos I have seen from the Goslings, none of those bad habits appear.. Regards Doug
  2. WW1 Thornycroft restoration

    Ian I take it what you are saying is that you are creating effectively a type of varnish, but I would imagine that has a dull finish? Regards Doug G.
  3. WW1 Thornycroft restoration

    Steve I stand in awe of you, your brother and Dad's abilities. Especially when it comes to your milling talents and pattern making talents. The Thorny adventure (and likewise Dennis) have been very educational and I eagerly await each update. I do wonder at your get-it-done-for-X-rally timeline. Very satisfying to have it ready in time. But does mean you are working to a self enforced deadline. However, perhaps that is your motivational strategy, so an observation rather than a criticism. Regards Doug
  4. WW1 Thornycroft restoration

    Doug to Doug You will need to get them to tell you how much to use or research that on the internet. It really is a case of more is not better. My Dad was a carpenter from New Zealand, I suspect it was over there that he learnt to use Terebine. What I do not know is if you have to vary the quantity due to climate/humidity. Regards Doug
  5. WW1 Thornycroft restoration

    Tomo I am sure Steve has just learnt more than he expected about paint. However, our Terebine discussion may be useful when it comes time to preserve any shovels or axes that are displayed on his vehicles. In the UK, you probably only need to linseed oil the handles once ever couple of decades. Over here in Oz I find myself having to do it every 2 or 3 years even when stored under cover. Our dry heat where I live really does age timber surprisingly quickly. I feel confident that my 500ml tin of Terebine (smallest I could buy) should see me right for at least the next 50 years given the amount of use I have for it on wooden tools. I await the next Thorny installment...... Regards Doug
  6. WW1 Thornycroft restoration

    Andy Mineral Turpentine is as stated a cheap mineral based substitute for natural turpentine (from the Turpentine Bush I believe). You would not use it in anything that you wanted to last for a long time. Real turpentine is used by artists using heritage category oil paints. This type of paint has a life in the hundreds of years and thus has to last forever. That longevity is also an indication that they don't degrade. The fumes are not compatible with good health either...... Mineral Turps does not have those properties. Sort of think Leonardo DaVinci works of art - his paints pre-dated what we are discussing, but you get the idea. Regards Doug
  7. WW1 Thornycroft restoration

    Andy Terebine is otherwise known as "dryers". If you don't have a drying agent in paint, especially linseed oil based paint, it takes ages to dry. Have you ever used linseed oil to preserve wooden tool handles? Without dryers it can take multiple weeks before the things stop sticking to your hands. Turpentine is used as a flowing agent (slow evaporation). Thinners on the other hand is used as a fast evaporating flowing agent. The secret to Terebine is to use it VERY sparingly. More is not better. Regards Doug
  8. WW1 Thornycroft restoration

    Tomo Thanks for the paint information. I am familiar with the use (minimal quantities) of Terebine in linseed oil based paints but did not know it was also used in mineral oil based paints. Regards Doug
  9. WW1 Thornycroft restoration

    Steve Once the Thorny is done, what then? I know you blokes have long ago run out of shed-age and if I recall correctly the Dennis is out to "agistment" so to speak: so space is not only at a premium, but I am guessing you would have to pay a significant sum were this also to be the case with the Thorny? I encountered the same problem. Being in rural Australia I had just enough spare land that I could double the size of my shed and added an extra 144 sq m, but now have very little bare ground left. I am under orders that 5 vehicles is the absolute limit - actually it was 4, but one was already on an 8 year acquisition saga so it snuck in under the bar. So do the 3 of you then go into care and maintenance mode or are there further adventures ahead if you can resolve the storage issue. Hobby farm with some barns? Regards Doug
  10. WW1 Thornycroft restoration

    Steve. Out of curiosity, how was the paint done originally? Spray or brush or something else? What was the original paint? Just real turps, tinter, linseed oil and a bulking agent such as titanium dioxide or say Nitro-Cellulose? Regards Doug
  11. WW1 Thornycroft restoration

    Sean As Ian said above, 1/2 million km is easy peasy in Oz. The distance from Sydney to Perth is 3,934km one way! Companies doing what the Yanks call "line haul" ie. a regular freight run, have trucks dedicated to that route, often road trains, so are constantly worked hard. Where I live in Broken Hill in the Outback is a driver change over point. The trucks are left running, the drivers swap over and it takes about as much time to do as it took you to read this. It is 41 hours driving time plus fuel, eating stops and mandatory rest breaks Sydney <-> Perth . So roughly 2 days. Thus they can get in a maximum of 2 1/2 trips per week. If we average that as 2 trips per week (to allow for maintenance etc) then that is close enough to 16,000 km per week. So 1/2 million km takes about 9 months. They use "for life" coolant (realistically it is probably changed once a year or perhaps twice a year) which along with the oils is tested for chemical failure and metal products by the smarter companies to forestall breakdowns. Some companies just change at stated intervals without worrying about the testing. What did amaze me the other day is that it is not uncommon now for the roadtrain trucks to have such heavy spec gear that the drivers do not even attempt to change their own flat tyres but call in a tyre company from the nearest regional centre whose service trucks have air driven ratchet guns and small hydraulic powered jibs (mini Hyab arm). This is due to wheel nut torques as high as 500 ft lbs!!! I have not heard what the average working life span in km of these vehicles is. Thus I leave it to you to imagine the logistical nightmare of having a truck blow a hose and cook its engine somewhere on the Nullarbor Plain in 45°C temperatures hundreds of miles from the nearest regional centre (ie. town big enough to have a truck business) and what is needed to recover the prime mover and 2 full sized trailers. The hassle of then sending another prime mover to resume the trip and relocating the dead prime mover back to base for an engine swap. Much easier to pay the cost of silicon hoses.
  12. WW1 Thornycroft restoration

    Steve. I had not realised 2 things when I made my suggestion about the silicone hose. 1) That the Thorny cooling system is not pressurised. As you say, some tape will suffice to get you home if you spring a leak. Perhaps also some self-amalgamating tape just to be sure? 2) That the silicone only comes in blue or red. I suppose that is a known feature so that people don't discard it as rubber when doing more involved work. It is way too expensive to throw away. Given our huge distances in Oz and that getting stranded can be not only a massive inconvenience but also life threatening in the wrong weather, cooling system integrity is a concern. I am told that it is now common practise for the long haul and remote truckers that when they buy a new truck, the first thing they do is cut off all the rubber hoses and replace them with silicone. They can then ignore the cooling system for at least 1/2 million km until such time as say the water pump needs replacing. Regards Doug
  13. WW1 Thornycroft restoration

    Steve How come you blokes don't use silicon hose for peace of mind? Yes it is quite expensive, but I think good insurance given the age of your engines and the work required if one of them should blow a hose and boil (and warp). Chances are you would know the event has occured being that they are front engined, but one less stuck-by-the-side-of-the-road scenario.
  14. Saladin CES drawings

    Clive. Very true. However our American chums seem to have swamped the terminology and NOS is one of their favourites.
  15. Saladin CES drawings

    Please explain Clive?
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