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andymcp

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About andymcp

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  1. Some success tonight! A couple of hours spent fiddling - removing, fitting, filing - the butterfly discs has resulted in a rough idle down to 850 rpm (without yet setting the mixture correctly). I have concluded that the new discs are not particularly well made, being roughly stamped out with inaccurately positioned mounting holes. I found the biggest improvement if I fitted the disc loose with only one screw, then manipulated the spindle so the disc found it's natural position. Having done this the second hole did not align precisely with the spindle. Easing the hole with a fine file allowed the second screw to fit whilst producing the best seal of the butterfly in carb body.
  2. Phil, All suggestions gratefully received, but I was aware and had spent a fair bit of time already trying to get the best fit. One thing I have noticed today is that when the butterfly is fully open there is a few thou of lateral movement on the spindles which isn't present when closed. I'm wondering if the butterfly is binding on the carb body and not closing fully. All good fun!
  3. Hi John, The original butterflies had popoff valves. One didn't look too clever so I replaced them with plain discs. I was going to solder them up but managed to destroy one removing it (those tiny screws can be bl00dy tight)! Not sure what happened with the repeat post. It was supposed to be a response to Nick. I will investigate the discs and spindles again.I P.s. Rear carb was drawing more air than front. Leaning out the mixture ( a lot) reduced the idle speed but had the engine 'bogging' when lifting the piston.
  4. Ok, carbs installed and control cables sorted as suggested. Next little issue. I can't set the idle speed to less than 1200 rpm without seriously compromising the tune. This would suggest an air leak, but I've carefully re-seated the manifold and carbs twice and sprayed wd40 around to test without any noticeable effect. I had renewed the spindles and discs. Shining a torch through the carb shows the merest hint of light around the butterfly valve. Linkages are loose, so there is no interaction between carbs. Initial set up as per SU guidelines. If anyone has any ideas what to look for they would be much appreciated.
  5. Ok, carbs installed and control cables sorted as suggested. Next little issue. I can't set the idle speed to less than 1200 rpm without seriously compromising the tune. This would suggest an air leak, but I've carefully re-seated the manifold and carbs twice and sprayed wd40 around to test without any noticeable effect. I had renewed the spindles and discs. Shining a torch through the carb shows the merest hint of light around the butterfly valve. Linkages are loose, so there is no interaction between carbs. Initial set up as per SU guidelines. If anyone has any ideas what to look for they would be much appreciated.
  6. Thanks for posting the links John. An interesting read, which I've bookmarked for future reference. None of it, however, changes my original opinion. I'm still not convinced of the cost benefit in 'education' terms. There are many real world projects that could be used to spark the immagination of future engineers without chasing an arbitary speed on land. Tell teenagers that there won't be enough power to charge their iphones in 5 years unless we develop and refine renewable energy sources and watch them work! Actually, they probably wouldn't work. They'd protest and moan that we've ruined their futures...
  7. I'm not sure about that. I watched the news coverage and found myself asking 'what's the point?' Jingoistic flag waving for British engineering? Breaking a record already held? Big gas turbine engine and a rocket booster isn't exactly cutting edge technology. What about the 'carbon footprint' of this whole affair? Surely difficult to justify in the current environmental climate (pun intended). I'm sure these obviously talented and dedicated engineers could direct their attention on developing more beneficial technologies. This is my personal opinion and I respect all other points of view. P.S. I also don't understand why people are still climbing Everest. It's been done. Get over it and find something new...
  8. My colleagues daughter has a Citroen C1 which has a button by the glovebox to re-calibrate the sensors and clear the warning light. Might be worth checking the manual? I have no personal experience of such technological marvels...
  9. Don't get me started on the Incas...
  10. I guess it depends how close you sit to the wheel. I understand the 'learning' derived from an NHS employee who received serious chest injuries.
  11. I wasn't aware of the camera implications in Michael Schumacher's unfortunate accident. Perhaps it's something that requires more publicity when you consider the number of cyclists/motorcyclists on the road with cameras attached. At work we have been advised to remove site access pass lanyards when driving due to the risk of the airbag punching them through your chest!
  12. I recently had a similar scenario, though mine wasn't £600. I did the same as you. Rang off and called the bank. When I eventually got put through to the card fraud team it turned out that it wasn't a scam and an individual in the USA had attempted to make two transactions using my wife's card details. Once sorted they asked why I hadn't used the transfer option from the automated call. My reply, "would you?" Whilst the automated call didn't request any personal details, PIN, etc, I was surprised that an unverified call would give the option of an auto transfer and it didn't feel right. Had I known though I could have saved myself 10 minutes holding on the phone!
  13. Herald pedal it is! I'll start with a Spitfire cable and see where I end up... Cheers Guys.
  14. Actually, that's what I meant by modifying the Herald setup. Years ago I did see a car with a Spitfire pedal, that the guy said bolted straight in. Just canvassing opinion.
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