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2.5piman

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About 2.5piman

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    Just passed my test!

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    Male
  • Interests
    classic cars and beer

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  1. 2.5piman

    Brake fluid cock-up

    Hello Paul, Auto Mec sell their brand of of DOT 5. Alec
  2. 2.5piman

    Brake fluid cock-up

    Hello Nick, I'm no chemist so I heeded his advice? He did sort out the problem I had though. Incidentally I don't think the addition of methanol stops some people :-) Alec
  3. 2.5piman

    Brake fluid cock-up

    Paul, I had cause to speak to a Girling engineer about a problem, and flushing came up an I said the same " I know that the proper job is to empty the system, flush it with meths, " and his response was on no account use meths on brake systems as it is mineral oil based and will damage the seals. so I didn't. The silicone i use from Automec says on the package that it will mix with dot 4 type fluids but any advantage will be lost. Alec
  4. 2.5piman

    Home Power Generating

    Hello Mattius, the modular nuclear reactors gain on initial cost, or so it's claimed as they can be mass produced. The longer term down side is the staffing levels of say ten small plants versus one large plant. I can see their running costs being much higher? Incidentally, I worked at Trawsfynydd nuclear plant many years ago, long since shut down. Alec
  5. 2.5piman

    Home Power Generating

    Hello Motv8id, The Tesla battery (100 Megawatts) in South Australia state is good publicity but as a total answer to South Ausrtralia's many problems it is not. What is little publicised in the media is that South Australia has also bought 500 Megawatt of diesel generator back up. The battery will discharge completely in little over an hour, the diesels will provide, typically about 90% of capacity forever and a day. My interpratation is that the battery bridges the time lapse between the detection of a power shortfall and the diesels getting started and going online. Solar plus battery for grid independence, I'm sceptical but it depends on the loction? It certainly is a total non starter in the U.K, solar output now is pretty dismal. One factor that has upset the cost equation is the increased cost of grid supplied power simply due to the burden of renewable generation costs. Alec
  6. 2.5piman

    Camshaft Bearings

    Hello Roger, I have a Lister HR6 generator, but your one at 850 sounds wrong. For 50 Hz you should be at 750 rpm, assuming a four pole pair generator? Alec
  7. 2.5piman

    My weekend so far

    Hello Nick, another Daimler V8 was the 4.5 litre version of the 2.5 fitted to the Daimler Majestic Major saloon. Despite it's size it was very quick for it's day. I think William Lyons killed it off as it was a better and faster car than the Jaguar Mk 10. Alec
  8. 2.5piman

    Extra Thrust

    Hello Doug, sideways force will try and bend the two claming studs, it is the weakest part of the journal as far as resisting force. From a machining point of view you need to be very accurate as to the depth otherwise the new bearing will take all the thrust or none at all until the bearings wear to an equal plane. I overhauled my fairly hard driven 2.5 engine recently and although the big ends and mains showed signs of wear and were replaced, the thrusts were good to go again. This is at about 45,000 miles, oil pressure was still very good. Alec
  9. 2.5piman

    Extra Thrust

    Hello Doug, have you thought that putting thrust bearings on the cap puts a force on the cap which it is not designed for? The cap is very strong in a vertical plane but less so horizontally.. As a matter of interest, the Jaguar XK engine also uses exactly the same thrust bearing arrangement, i.e. halve bearings in the block only. I believe there is a good resaon to just fit halves as the cost to the manufacturer is only one pair of bearings, hardly worth saving? Yes, cast iron machines very easily but you get black from it due to the large amount of carbon in it. Alec
  10. 2.5piman

    Sheet Metal Nibblers?

    Hello Tony, using Duck Oil or WD40 also helps as it prevent clogging of the blade, always a problem with aluminium. I also use a portable tct portable circular saw for full sheets, especially useful if cutting thicker sheets. Alec
  11. 2.5piman

    Sheet Metal Nibblers?

    Hello all, tin snips are fine but not a lot of use to cut holes in a panel unless another method is used to remove the bulk of the metal. Alec
  12. 2.5piman

    Sheet Metal Nibblers?

    Hello Oldtuckunder, An angle grinder with modern thin cutting discs are fast and accurate for straight cuts, otherwise a jigsaw with fine toothed blades are good if you have curved cuts. Ideally cut a little inside your cutting line to allow for wander and finish with standard aviation snips. Alec
  13. Hello all, I've used the Gunson Easy Bleed for many years and found it good to use, I have had the occasional leak at the master cylinder cap but no real problems, helped by the fact I use silicone brake fluid. Prior to that I had an assistant and what I found helped to speed up bleeding of empty system was to slacken a bleed screw and set up a repetion of one full pump, place a finger over the nipple, pedal up, finger off one full pump finger on and so on. I found this brought fluid quickly to the cylinder. Once the lines were full revert to building up pressure by several pumps on a closed system then open the bleed as normal. My thinking was that pumping the pedal on a system full of air and closed was a slow way to get fluid to the cylinders. Alec
  14. 2.5piman

    Lathe Advice

    Hello GT6, a good machine, have you got the 'C' spanner for changing the chuck? However E-Bay has a lot of Student parts, although not particularly cheap but reasonable value. You can also get copies of the manual which contains illustrated parts section. This website is a mine of information (and a source for manuals):- http://lathes.co.uk/ Alec
  15. 2.5piman

    Skills And Teamwork

    Helo Nick, an interesting video, obviously a skilled crew with a very primitive drop forge and kiln. The finished article looked rather too good for the also primitive looking machine shop. Did you notice the rather large pile of swarf on the floor. Alec
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