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Type: Posts; User: Mr Cox

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  1. Replies
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    To me this sounds like the low-end needle is too...

    To me this sounds like the low-end needle is too far in, it will then restrict the fuel flow even at full throttle and the main-needle cannot correct for that, no matter how far out you put it.

    So...
  2. Thread: Club Enya

    by Mr Cox
    Replies
    2,587
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    196,380

    That's what the diesel engines excel at! :) ...

    That's what the diesel engines excel at! :)

    The props you are using are simply too large for the glow .09 engine, the power peak is up at around 14-15000rpm. I'm using a 7x4 -7x5 prop on the .09...
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    I use Linseed oil regularly for sealing wood, it...

    I use Linseed oil regularly for sealing wood, it penetrates deep and then cures in air, thus blocking all the pores from taking up water. It smells nice and behaves much like castor oil does. E.g....
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    295

    Just measure the threaded length on the pressure...

    Just measure the threaded length on the pressure tap when you remove it, then install a threaded screw of maximum that length and you are sorted.
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    576

    The crank timing on the intake creates a vacuum...

    The crank timing on the intake creates a vacuum when the engine is turned in the reverse direction, this then feels like a stronger compression although the actual compression at the TDC is the same...
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    474

    The .25 FP engine is not ringed, it is ABN...

    The .25 FP engine is not ringed, it is ABN technology. It may well peal the nickel liner but I don't think that would give any vibrations, just poor compression.

    Not sure about the clicking sound...
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    Hmm the perfect fuel line, I have a few and by...

    Hmm the perfect fuel line, I have a few and by now it is hard to know were they came from originally...

    A few of my favourites have been the stock Thunder tiger fuel line that came with the...
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    460

    Check the regular engine forum, there was a...

    Check the regular engine forum, there was a discussion about this a few years ago. I think most of their two-stroke engines are made in China, while the four strokes might still be made in Japan.
  9. Replies
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    It would be an IV model, just like in the earlier...

    It would be an IV model, just like in the earlier pictures above.
    TV stands for Throttle Valve, so that was never stamped on the case (which were the same for CL and RC (TV)), TV was therefore only...
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    My own projects are just so slow in their...

    My own projects are just so slow in their progress in comparison to some of the threads here, I don't know how you guys find the time. Between my daytime job and home-time chores, there has not been...
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    Speaking of units, are your control throws in...

    Speaking of units, are your control throws in degrees () or really a percentage (%) of something?

    With a new plane I like to start with about 15 throws on everything, measuring throws in cm (or...
  12. Replies
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    I don't know about airleaks, the carb has an...

    I don't know about airleaks, the carb has an o-ring towards the crankcase and the backplate has an o-ring too. There is an oil channel to the front bearing, but that wouldn't make it run too rich I...
  13. Replies
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    I think TT couldn't be honest and had to call...

    I think TT couldn't be honest and had to call their engines ABC too, since that's what OS used at the time. OS then later "explained" they had meant "ABC-technology" but had to shorten the text on...
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    That is an interesting battle between .10...

    That is an interesting battle between .10 engines, and I would like to give some of my own experiences with the FSR and FP.

    The FSR is a little low on the compression ratio for the fuels that we...
  15. Replies
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    490

    Below is a picture showing the inside of an MVVS...

    Below is a picture showing the inside of an MVVS tuned muffler, this is what most people are after when making the moose can mufflers.

    You can of coarse make a regular muffler and it will be a lot...
  16. Replies
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    490

    Yes, it is JB weld (the marine version) and it is...

    Yes, it is JB weld (the marine version) and it is not strong enough on its own for strength, I mainly use it to seal the structure. The front end of the tube is split and the header screws will...
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    490

    The first drawing works fine, but you want the...

    The first drawing works fine, but you want the inside tube to be much longer. It should almost reach the rear wall, that is the whole purpose of the design. It then acts as a folded tuned pipe, if...
  18. Replies
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    5,489

    Are these "dedicated" disels or a higher...

    Are these "dedicated" disels or a higher compression head on a glow engine?

    On two-strokes some engines will transition very well, these are usually rather timid as glow engines but work well as...
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    Looking at the video it doesn't run very well...

    Looking at the video it doesn't run very well though, in terms of pickup from idle and smoothness?
    It seems to be both missing and being overcompressed at the same time somehow...?

    Perhaps it is...
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    I'm glad to se that you've sorted it out now. :)...

    I'm glad to se that you've sorted it out now. :)

    A .010 racer you say?
    I started one a few years ago, wanted to convert the Nemesis (micro) by Graupner. I have put in a carbon rod in the wing and...
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    No, that's not the way to use the program. You...

    No, that's not the way to use the program. You should follow the frequency changes of one line. These changes in frequency comes from the doppler effect (plus changes in rpm from a dive of course).
    ...
  22. Replies
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    Tinkering with engines is all part of the fun...

    Tinkering with engines is all part of the fun with the hobby, wouldn't do without it! ;)

    In this case there shouldn't be anything wrong with the engine itself, it is just the carb that they messed...
  23. Replies
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    From the screen dump it doesn't look like you are...

    From the screen dump it doesn't look like you are using the program in the right way. Here is what it should look like, you want the change of frequency in one single line (this gives you the doppler...
  24. Replies
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    No, I don't think that there is anything wrong...

    No, I don't think that there is anything wrong with the spray bar, it is the shape of the needle that you need to work on. A steeper taper for a larger difference in fuel delivery between two given...
  25. Replies
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    Sounds like you need a thicker needle or a needle...

    Sounds like you need a thicker needle or a needle with a steeper taper. Removing the very tip of the low-end needle might also work.

    Other things to look into would be the fuel, compression ratio,...
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