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Thread: Open Wheeler Toy

  1. #631
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    The plenum is progressing, as usual in mild steel, but it is gaining weight as it comes together but I don't need it expanding when it sees a couple of bar of boost.

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    The throttle body will sit in this sort of position.

  2. #632
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    YAY !

    Gotta have a little win now and then, the wheels have turned up from england and the 18 bolts that hold them together are on the same PCD as the wheels I already have, so I can mix and match a little...

  3. #633
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    Of course the first thing I had to do when the wheels got here was to pull them apart..... the seat for the wheel nut was flat, whereas I needed a 60 degree taper....I got a local retired machinest to spin them up and ease a taper into the centre, nice job done so I raced home to reassemble a wheel and see how it fitted.

    As It turned out, I didn't even need to reassemble the wheel to find the first issues, the wheel centre touched the brake caliper, no real surprise, so that was trimmed to fit. And the drive pins were on a slightly different PCD. There has been some confusion on just what the PCD is, Whether it is 3 3/4 or 95 mm whether the drive pins are 5/8" or 16 mm, anyway a little clearancing was required.

    This is an issue I'm struggling with, the F1 parts are made to a higher tolerance than I can work to, I'm simply not capable/not equipped to operate at the standard of tolerances that they do. I'm a little sad and worried that I'm out of my depth and spending like a drunken sailor, whereas the little hillclimber was much more within my capabilities and pleasantly, turned out just fine. I can only hope that this final product can be refined to be something useable and forgiving.

    I do sometimes find myself thinking I should be turbocharging the little hillclimber and pushing it a little further down the development road, a dose of HP would certainly bag a faster time...

    Meanwhile I did eventually get a wheel mostly together ( I ran out of the correct stainless socket head screws to finish bolting it together) and fitted it to the rear.
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  4. #634
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    Yeah it is going to be stupid wide, initially, I will not do anything about that at the moment, lets continue working toward something that can move under it's own steam first.

    So many things to do.......

    The list of gearbox parts has been finalised and costed, more money heading overseas. At least it should be an unbreakable driveline!

    I have the DXF file for the flywheel sitting here but for some reason I've not sent it off to be created..somehow I've got to work out a method of driving the gearbox from an external/removable starter motor, the end of the shaft has been turned down but I have no idea what I'm supposed to do with that! I'm figuring that something was probably welded onto the shaft as the diametre is currently to small to even seal the gearbox oil in, but what? I'm thinking of just welding a socket on there and fitting a 1/2" drive to the starter?

    And why is there no reverse, F1 cars were supposed to have reverse?

    Many new things to do and learn...

  5. #635
    Registered User jimmyg's Avatar
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    Down and down the rabbit hole. Nut away at it. You will work it all out. You aways do.
    Mmmmmmmmm beer.

    Quote Originally Posted by ALLMTR View Post
    You had one fucking job, Imran. One. Now look, there's Flibberty Gibbets all up in here, seeing straight through your ruse. One. Fucking. Job!

  6. #636
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    Similar just on a larger scale....

  7. #637
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    I'm quite down at the moment, so much to do....and the weather is not being conducive to getting out there and getting much done.

    I'm revisiting the rear caliper mounts...I'm still not entirely happy with the way that is all fitting together.

    I actually took the time the other day to have a closer look at the studs holding the transaxle together, there are several missing nuts so I needed to know what I was looking for...Yep, despite taking Hewland internals the housing itself was created by Euro Racing in Italy. It is equiped with metric fastners, fine metric fastners, with reduced size heads, so the M8 x 1.0 nuts require a 10mm spanner.... the local fastner suppliers have thus far failed to come up with anything... ARP are looking for around $5 per nut! I'm not impressed!

    Just another expense and hassle on something that is throwing up to many of them, just need to keep slogging away at it, one piece at a time.

  8. #638
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    Any reason why you need the smaller head on the nuts? Can't swap them for a larger head?

    If not might be time to buy a mill and shave regular nuts down ;-).

  9. #639
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    try Wurth for the nuts...if you're using Coventry fasteners you wont get any joy...there is a fastener place in mile end that ssems to know what they are doing.

  10. #640
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    Thanks Guys

    Yeah some positions don't need a small nut, others do, I'd rather standardise..even at cost.

    I think a mill is rather overcapitalising, though I'm sure it would be handy for other things....

  11. #641
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    You're doing it wrong mate, tools don't factor into the build cost. At least that's what I tell myself/wife.

  12. #642
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    The nuts will be k-nuts. Haven't bought any in that size for several years, last list price I had was around $US1.15 each. Last time I bought any local was from SPV, $10 a pop - and they're been gone for 20 years probably!!

    They're throw away items after use, which might explain the ones missing. Anti-seize is you're friend too.

  13. #643
    Non Compos Mentos Gammaboy's Avatar
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    Quote Originally Posted by gxxr View Post
    They're throw away items after use, which might explain the ones missing. Anti-seize is you're friend too.
    Well, they're supposed to be in critical applications - reality is you can treat them like nylocks and re-use them plenty of times, just run an eye/spanner over them every now and then.
    "Where can we get hold of a Vincent Black Shadow?" "Whats that?" "A fantastic bike," I said. "The new model is something like two thousand cubic inches, developing two hundred brake-horsepower at four thousand revolutions per minute on a magnesium frame with two styrofoam seats and a total curb weight of exactly two hundred pounds."

  14. #644
    Gas Turbine enthusiast da9jeff's Avatar
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    I reuse k-nuts all the time. As long as you can't spin it down by hand and it feels tight, she's good. The friction between the mating faces should be keeping it tight and the run down torque just stops it rattling off if it does somehow come loose.

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  15. #645
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    Yes, I've fired off an email to Belgium asking for pricing...lets see what comes of it.

  16. #646
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    Ah! A little bit of thinking, and I've found that Demon Tweeks in England sell individual K nuts, list price $2.07 !! Winner

  17. #647
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    There was another mob in the UK I got a bunch of metric k nuts from that were slightly cheaper than demon but wasn't by much really, will have a search of my email for an invoice.

  18. #648
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    Try Aircraft Propellers Spares in Victoria.
    (03)9580 2034 they sell K nuts and AN bolts at what I've been told are very reasonable prices.

  19. #649
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    Aircraft Spruce is the cheapest I've found for AN bolts and K nuts. Obviously all imperial and they only seem to have hex head bolts (But they are very strong!)

    http://www.aircraftspruce.com/catego...a/nut_hex.html
    http://www.aircraftspruce.com/catego....html?pageno=1

  20. #650
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    Thanks Guys

    Yes I sent an email to Knuts in Belgium and got a reply from Propbits @ Moorabbin Airport...Demon Tweeks are still cheaper...

    I finally got a few usefull things done today

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    I've still got a cubic fuckload of things to do but, there it is, actually sitting on it's rear tyres...

  21. #651
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    Have to change the thread to NSFW because the is pure porn!
    Mmmmmmmmm beer.

    Quote Originally Posted by ALLMTR View Post
    You had one fucking job, Imran. One. Now look, there's Flibberty Gibbets all up in here, seeing straight through your ruse. One. Fucking. Job!

  22. #652
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    Yeah keep it up, this is awesome! That's a hell of a lot of tyre too, the potential is huge!

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