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GT6MK3

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About GT6MK3

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    HotRod Nerd!

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    http://www.skydivepros.com

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  1. GT6MK3

    Infamy

    Darren, I can force a password reset at the admin end, and reset the key behind it. It will mean you have to go through the lost password routine, but it will make sure your clean at this end at least. let me know if you want me to try it. C.
  2. Updates - always challenging in the 24/7 update world. I feel for their webmaster. Nick's pretty kind, but my main talent is in picking software that works and is well supported, and choosing web housing thats properly sized and well supported. My level of dedication is proportional to the ability to access expert tech support and quality hosting, which is all paid for by our supporter members. I'm happy to donate the time it takes to keep Sideways running - this repository of knowledge and collection of experts is priceless. If not for Sideways, my Triumphs would be rusty hulks, but I consider them just a bonus to having met Steve in Vegas, had a beer with Nick in Bright, and my upcoming stay in Lopen. A set of carbs that are in Europe would still be in my garage, a diff that's in my car would still be in Vegas, and on and on... Sideways is not just a website. It's a piece of connecting tissue that helps knowledge, fact, rumour, humour, and help wander into our computers, phones, tablets and lives. Sideways is free to use, read, post, and search. Joining is optional. I think of it as being a free library of specialist knowledge, open to anyone on the internet, which has a fun and inclusive clubroom attached . Now for the catch. I run Sideways for free, (so you get what you pay for some days!) but hosting and software licences aren't free. For what it does, I do my best to run Sideways on the smell of a high zinc oil infused rag, but every cent helps. This year we saw lots of new members taking refuge from a less than satisfactory experience elsewhere, and to their credit, many have chosen to dip into their pockets and added to the ranks of those wha have supported Sideways financially. We're not a car club, there's no annual subs. But it's 12 months since I last specifically asked... So, if it's been 12 months, you have the means, and Sideways is worth it to you, feel free to hit the donate button. (If you chose to, the options are in US dollars, because thats what I pay for Sideways expenses in, and the default option is $25, because under that the paypal fees make it not worth it.) To those who chose to contribute, thanks. Craig
  3. GT6MK3

    1966 Vespa 150 Super

    EGT and AFR install. This is cheating I'll admit. Shiny bits yet to install
  4. GT6MK3

    Messages of support fro Darren TR5tar

    Shadowy Dark Overlord at your service... I'm in the UK for 2 days in 4 weeks time, where do I collect my Silverstone passes? ;-) Craig
  5. GT6MK3

    Messages of support fro Darren TR5tar

    Can PM's on the TR forum be read? The TR forum runs on ipBoard. Sideways runs on ipBoard. Administrators on ipBoard can (if they wish to) use a "Log in as" feature, and log in as any user. That's not the only way PM's can be read, but it's probably the easiest. The action would be logged though. Alternately, as site admin, I could take a full backup, run up a shadow copy of the forum, go in to any user, reset their password and read your PM's. No log there... Or I could load this http://invision-virus.com/forum/index.php/files/file/996-pm-viewer-104/ Or I could just go into the database and hand hack them out. PM's are laughably insecure, and they can be read. Whether they are or not is up to the admins. As an old tech support t shirt says... I can assure you I'm not the slightest interested in reading anyone's PM's on here, but you're gonna have toi trust me on that. Trust me... I'm from tech support
  6. GT6MK3

    Vespa smallframe

    After a long road, I headed out to the garage last night to prepare Buffy's powerplant for it's first fireup. Today I headed back to Mat's factory after a work induced hiatus. Clamped up the first of the underfloor bracing ready for welding (You cant use too many clamps!) And made a start on glueing them in
  7. GT6MK3

    Is mintylamb anywhere new ?

    Hosting offer still stands...
  8. GT6MK3

    Vespa smallframe

    Buffy hasn't been forgotten, but her powerplant has been taking much longer than I anticipated to put together. Everything almost fits, and everything that doesn't quite needs careful thought and precise fettling to make right if she's going to be capable of the rev's she'll need. And then of course, there's my idiot/rookie mistakes. Today's task was to put together the clutch cover. Should be simple, but there's aftermarket bits, which precicely almost fit, and I needed to waste hours filing, sanding, twisting, heating, cooling, clamping, swearing and pondering. Eventually, without breaking too many parts, this simple assembly was together. Easy. I should have left it there. Instead, I decided to fit it. And dropped a clutch cover bolt (actually a high tensile M6 socket head screw), into the open clutch case. Sod's law dictated that it (of course), immediately rolled through a tiny gap, into the gearbox. Fair to say I was displeased. Genius that I am, I gently rolled the case over, and tried to gently shake it back out. Which resulted in a click, a clunk, and then silence. Yep, I'd got it jammed in the gearbox. A machine screw floating in the gearbox is not ideal. After a short, blue coloured hiatus, more shaking and swearing (if it was a baby, I'd have been arrested), and some general poking around, I remembered I impulse bought an inspection camera at Aldi a while back. Oil filler bolt out, camera in, a bit of wiggling, and the little bugger came into view. Half an hours prodding and probing with a bit of bent mig wire, some more rolling of the case, and I'd got it loose of where it had wedged, and worked it up towards the front of the gearbox. Now to get it out. So I glued a rare earth button magnet to a thin screwdriver and went in on an angle past the clutch I felt like Jack Swigert trying to capture the LEM in Apollo 13, I really didn't want to have to split my pressure tested cases, so it was a delicate operation done juggling the mag stick, the camera probe, and the screen, but before too long I had "Capture", as the bolt jumped onto the magnet. From there it was a twisting and turning in and out see saw to gently twist the bolt out of the gearbox, through the slot, and under the clutch. Finally though, Success It reappeared. Good tools, Are their own reward. Craig
  9. GT6MK3

    Vespa smallframe

    Yep, it's an awesome toy. wish I had the garage big enough to house one, and the budget to buy one. Luckily, Alan lets me use his! More work I the garage Saturday. Sadly, I overdid it pressing a bearing holder into a 50 year old engine case and cracked it, which was cause for a large amount of swearing, and will require the opening of my wallet to fix. Dammit. My buddy Michael was able to continue his build though, and more port grinding ensued. And, with the arrival a third set of hands and experience, the stuffing of oversize parts into an undersize case began
  10. GT6MK3

    Vespa smallframe

    Clamp Cut Think and program Cut more and more And parts magically appear Oh, and re-re-re-cut the top surface...
  11. GT6MK3

    Vespa smallframe

    A trip to Alan's shed tonight for some programming. My buddy Michael had provided this as the basis for the cylinder spacer. That let me build up this in a mere 24 steps. But I needed to step the ports out 3mm horizontally over the 10mm thickness. Each arc for example has 13 adjustable variables to be set, with 3 check results. Then there's lines, blends, depths, and repeats. Which meant lots of maths, educated assumptions, (and a buttload of scientific wild arse guesswork). Till I had this It was 4 degrees in the shed, and almost 10pm, so I saved it and naffed off home for a hot toddy. I'll cut it tomorrow.
  12. GT6MK3

    Vespa smallframe

    Yep - the maths is starting to blow my tiny brain.
  13. GT6MK3

    Vespa smallframe

    Went to Alan's headquarters today, and did some measuring. We put up the first engine, with the piston at TDC (re-measured with a dial indicator). We touched off the face of the cylinder, and established a plane there as a base. Next we touched around outside wall of the protruding piston to give us a reference circle to work within. Finally, we touched off four points as close to the outer edge of the face of the cylinder as possible, two in line with the gudgeon pin and two perpendicular to it. We may have got some minuscule piston rock on the across touches, so we'll trust the "along" numbers. Here they all are... Basically, they show that along the gudgeon pin, the piston edges protrude 1.6251mm (averaged), and across it, 1.6118mm. So lets call it 1.63mm for our purposes. Next the second engiine (Mine!) went up After the TDC procedure, we measured again Across the pin we'll call mine 1.94mm Next we measured the cylinder itself, including some numbers for future reference in case we want to mill replacements later (Outer holes, combustion chamber sphere etc) . The squish area of the cylinder head is a sloped ramp, which then meets a short outer cylindrical wall, which then in turn meets the outer mating face. We need to know the height of the cylinder wall, s (a) it will allow us to set our squish, and (b) it will form the hard limit of how far the piston can protrude from the cylinder, lest it mash into the head, rapidly, with great and expensive force... Because the wall meets a sloping face, accurate measurement required some maths and calculation. First, we touched off points on the upper face, and made that a reference plane. Next we carefully touched off points on the inner wall of the cylinder, all at the same height. (with the software, if you tell it your're measuring the inside of a circle, and touch three points, it can extrapolate the circle. Touch more points, and you have more accuracy). Once we had the circle, we then had the software expand it into a cylinder, perpendicular to the original top reference plane. To measure the squish ramp, we told the software we were measuring a cone. By touching off points up, down, and around the ramp, we were able to calculate the ramp. then find (a), where it intersected with our wall cylinder, and (b), how far down from the top reference plane that intersection was. Abracadabra, the built in squish headroom for the cylinder is 0.9252mm. Lets call it .93. So as they stand, we're going to make expensive noises with our 1.63 and 1.94 popups. On to the cylinders. We measured these with a 90 degree probe, trying to get about 0.8mm into the port to beat the roundoff on the edges. Because we have the current popup numbers referenced to the top face of the cylinders, we were able to take these off the engines and measure them stand alone. Results for #1 and mine. Mains on #1 are 38.87 39.01 38.64 and 38.78. (Average of 38.83) Exhaust is 27.46. So 130.12 and 185.29 with 27.58 and zero deck, and 132.87/187.51/27.32 with 0.5mm popup. Mains on mine are 38.65 39.09 38.58 and 39.23. (Average of 38.89) Exhaust is 27.97 So 129.79 and 183.02 with 26.62 at zero deck, and 132.54/185.25/26.36 with 0.5mm popup. Now I'm off to consult guru's and do maths...
  14. GT6MK3

    Vespa smallframe

    Had a good day in the garage building up a buddy’s motor that’s the fraternal twin to Buffy’s he’s pretty chuffed... the inside of the crank housing weld cleaned up ok Sunday I milled down the massive pimples left after building up the ports for machining and this arvo the base of the leg shield got sealed up
  15. GT6MK3

    Vespa smallframe

    Very unwanted hole - not oe - it blew through during hydroblasting, a result of trying to maximise case volume by expanding the crank void to the maximum possible, might have overdone it. Hopefully filled now. Oven cost me a sold 10 bucks on ebay! Neededto cut out and bend a 25mm by 270mm piece of 1.5mm sheet to fill the rear base of the legshield. Was planning on cutting it out with an angle grinder, and bending it in a vise, but Mat laughed and used his toys to good effect. Nice to have friends, Hope you're improving, C.
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