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About 2.5piman

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    Just passed my test!

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    classic cars and beer

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  1. Hello darren, induction heaters are usually workshop tools and access would be the biggest problem if you have a seized fastener somewhere on a car. One tool I consider most versatile and useful in my work shop is my oxy accetylene kit, (brilliant for that job as the flame is so concentrated), body work, joining dissimilar metals e.g. stainless to copper, heating heavy section steel for bending, cutting thick steel etc. To put this into perspective I have a Bridgeport miller, Student lathe, AC/DC tig set and a plasma cutter. Alec
  2. Hello Roger, while it is neat from an engineering standpoint, seal life is a factor and should it wear out then it's a much bigger job to replace. Maybe being a larger diameter the seals will last longer but it's worth thinking about? Alec
  3. Hello Roger, although it is quite easy to fit seals to the exhaust valves, i doubt if it makes any difference to oil consumption, and half a litre in 2,000 miles is exellent anyway. Bronze guides expand more than cast iron, so you should end up with the same running clearance when hot. Alec
  4. Hello all, renewable generation is ineffective including tidal. The Swansea bay scheme was scrapped because it produced very little power at an enormous cost, it was never really viable. I hate to think what the maintenace problems with tidal generators would be, offshore wind turbines are having problems with premature wear of the rotor blades. Someone mentioned the 'big battery' in Scotland, 50 Mwatts rating but I don't know the capcity, but it won't be much more (Tesla's 100Mwatt battery in Australia is 109Mwatt hours). Used as back up they will last only minutes. Useful for load balancing to a degree due to the fast response. Nuclear is the only non CO2 emitting technology we have that does work but the cost of fighting law suits is making it quite expensive. Even nuclear, although reliable, has problems as it can't easily be modulated to meet demand so is generally run flat out and fossil fuel stations will have to do the balancing. Alec
  5. Hello Michael, I have no experience of 360 washers (I've also run these engines for decades and not had a thrust washer problem) but from an engineering theoretical aspect the caps are not designed to take end thrust, the block is far more rigid? Alec
  6. Hello Greta, many after market cylinders come with remote reservoirs, so that is another option? Alec
  7. Hello Greta, I wish No was a much longer word so it would have more impression. There is no climate emergency, even the IPCC do not claim that. Alec
  8. John, I wouldn't read too much into that 'million', no doubt many came from far away but London is an area that is strongly remain area and has a very large population. (I've no idea of the current population but it was in the order of 7 or 8 million I believe, perhaps more?) What annoys me more than anything is that a referendum was held and all of our elected representiitves should have been working to that end to secure the best deal possible. We all know that this did not happen and that the negotiations have been poorly carried out. It's time to get Britain out of this mess of an E.U., there's no doubt that we will suffer for it in the short term but we have a very long time to get our house in order and start to reap the benefits of independence. It will take some good governance, so our politicians will have to throw away the rubber stamp and start listening and learning. In Holland there has been an upsurge with a new political party and has won a significant number of seats on an anti E.U. platform, amongst other aims, The Forum voor Democratie has taken the current government's senate majority away. We are not the only country that feels this way by a long chalk. Alec
  9. Hello John, easy enough for you as you have a lathe I seem to remember? Solid bar would be preferable to give a greater wall thickness, but more work of course. You don't need to use shims at all, if you turn up over length slightly, assemble and check the end float, then skim one end to achieve the correct end float, 2 to 4 thou like the rear hubs on a saloon? Alec
  10. Mennor, what you say is true but only half of the story. One part is that the wind farms are in the north but the power consumers (industry) are in the south and a vast programme of transmission line construction has started, at a huge cost, to connect the country directly. A lot of their power is currently (sorry) routed through neighbouring countries and it destabilises their grids. Wind energy in general is not a stable source of power particularly in variable wind speed conditiond. Without the inertia of thermal turbo alternators the system would not work. Also wind is not dispatchable , i.e. it does not cater for load increase or decrease, this balancing is done by thermal generation.. Unfortunately the general public is never informed of the very many real drawbacks of renewable generation and the real liability is that there are times where Europe is becalmed so virtually no wind power. This actually means that we need as much thermal generation capacity as peak grid demand meaning all the capacity of installed wind generation is wasted. No wonder Germany's electricity is so expensive, similarly as is ours. It is ludicrous that our government is planning to shut the few remaining British coal fired stations without any plan to replace that plant with new dispatchable plants. Not only that it leaves our grid at the mercy of gas supply and this is generally constricted during very cold weather, when peak electricity demand is greatest. We relied on coal to keep our grid functioning when the 'Beast from the East' hit the U.K.. That will surely occur again in the future. The relatively minute amount of CO2 from these stations is not a reason to shut them without adequate replacements. I believe it's a matter of when not if we have a major grid failure due to the inept policies of various energy ministers of our government. Because of this I have bought a diesel generator for our small business as insurance. Alec
  11. Hello Rod, the thing to remember si that the E.U. has never been a democratic institution, it is a supranational one and run by selected officers. Alec
  12. Hello RedRooster, " They could have left the washers off too " Many a true word said in jest. Colin Chapman saw a new mechanic to Team Lotus working on one of the cars and he ordered him to remove all the washers he had just fiited on whatever he was working on. Add lightness was one of Chapman's mottos. Alec
  13. Hello all, I think there is some confusion here between Europe and the European Union, which is not a country at all but a ruling body over all member countries. Run by selected not elected people who wish to subvert all national aims of their members. The whole purpose of the European Union is control and not trade as we were told originally by Heath and endorsed with Wilson's referendum in 1975. It is proving to be very difficult to extract ourselves from this dictatorial body and will, no doubt take many years before we can start to really make headway again. We need a better class of politician if we are to make the most of our opportunities, as they have been out of practice for forty years or so as rubber stamp weilders of legislature. To compound it they seem to not only have passed into law the directives but gold plated them making them even worse. A classic example is the Climate Change Act, a law that is so detructive to the U.K. and yet all but 5 M.P.s voted for it. Alec
  14. Hello Paul, forgetting the very small amount of hydro, imagine two scenarios, no evs and evs. The grid load will be x with no evs and x + ev's , renewable genration cannot respond to load, you get what you get. With the + evs that extra load will be provided by more fossil fuel generation, in effect evs are fossil fuel powered. This is unlikely to change for decades and begs the question why are we expending large of amounts of money promoting them and adding extra infrastructure.
  15. Hello Nick, those will be relatively small given the total amount of electricity generated over the life of the station. Alec
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