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  1. #16
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    Quote Originally Posted by qwerty View Post
    As Mr tea is in car mechanics he will probably be able to tell why there is a functional difference in how a cars central brakes cylinder distributes hydraulic pressure precisely adjustable to 4 wheel with different hydraulic line lengths to each of the callipers from that cylinder.

    Is it a pressure reduction or levelling system on each line or at the calliper, is it the braided steel lines, is it higher hydraulic pressure and a spread in adjustment range ?
    In any hydraulic system.... The fluid barely moves..
    It merely pressurizes the system..
    If its 50 psi at the front caliper, it will be 50 psi at the back..

    As you apply the brakes...
    The pressure builds equally throughout, favouring neither front nor back.
    If there is a small amount of knockback on the pads at the front, the rear will not bite until the front has re-set the pads on the disc,
    Only then will the pressure build at the rear and commence its frictional duties.. at an equal level.
    ... J.
    There is nothing that cannot be fixed with a good cup of Tea.

  2. The Following 2 Users Say Thank You to MrTea For This Useful Post:

    CaliusOptimus (01-23-2017),Depths of Hell (01-24-2017)

  3. #17
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    Mr. Tea You ... among others on this board.... have some serious skills brother...

  4. The Following User Says Thank You to 56yroldkid For This Useful Post:

    MrTea (02-05-2017)

  5. #18
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    Had a few new additions to my tool box recently....

    I purchased a home milling machine early last year..
    Its not as big as a Bridgeport, so I have had to learn new ways to do things...

    The bolt on goodies have been flowing in steadily since.
    A Vertex 6" rotary table last week..
    And yesterday... A 125mm chuck to bolt on to the rotary table..

    For the photos, I Propped in a chunk of billet I am working on..
    When there is a bit more light, and its not freezing outside.....
    I will have a bash at a bit of rotary milling..

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    There is nothing that cannot be fixed with a good cup of Tea.

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    Depths of Hell (01-24-2017)

  7. #19
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    Boing Boing...

    Sprung loaded pull start..

    The original strimmer pull start has the Zenoah Eazi start..
    A spring is loaded up when the cord is pulled.. The energy stored in the spring is released when the engine breaks through the compression.

    The BCZ5000 pull star is massive, as it forms part of the engine cover..
    It would look so stupid perched on a naked engine...

    3rd photo shows Eazi start next to G43L pull start.

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    There is nothing that cannot be fixed with a good cup of Tea.

  8. #20
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    Boing Boing Boing.....

    Trawling Ebay...
    I found an interesting array of pull starts..
    One caught my eye...
    It differed from most of the standard fare pull starts.

    Putting my hand in to the Paypal jar....
    I spent a whole $9 on it.. Posted from China, it duly arrived..

    On opening... all looked good.
    It came with a twin pawl ratchet plate, threaded M8 in the centre.
    The pull start handle is very nice quality, with no sharp edges and a nice in hand feel.
    Pull cord is substantial and firm.

    Sadly... The case is quite flimsy..
    And the PCD of the mounting holes... All wrong.

    On the plus side...
    The Eazi start spring is different to the Zenoah spring...
    The Zenoah item is a coiled barrel spring..
    The China item has a flat coiled spring, more akin to a clock spring.

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    There is nothing that cannot be fixed with a good cup of Tea.

  9. #21
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    Determination.....

    Liking the China pull start....
    I had to think of a way of fitting it............

    3 lbs of HE30 Aluminium...
    Let The Machining Commence.

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    There is nothing that cannot be fixed with a good cup of Tea.

  10. #22
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    As usual... The easy way to start machining a square block...
    Mount a disc to it...

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    There is nothing that cannot be fixed with a good cup of Tea.

  11. #23
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    Side Tracked...

    The China pull start had a really nice quality cord ferrule...
    The bit that the cord slides through as it exits the casing...

    It was very hard frictionless plastic... The kind you find on a Zenoah pull start..
    And nothing like the ones made of cheese that normally come on the China items..

    Attempting to remove it from the casing..... It broke in two....
    Bugger........

    Made my own from a bit of HE30 aluminium rod.....

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    There is nothing that cannot be fixed with a good cup of Tea.

  12. #24
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    Pawl plate....

    It came threaded M8 ..
    The crank is threaded M10x 1.25mm ...

    Easy Peasy....
    Before tapping the larger thread, I used a hot air gun to heat up the plate..
    This expanded the alloy..
    Dipped the tap in a drop of engine oil, and fitted it in an electric drill..
    Pulled the trigger... Ziiippppp... thread cut...

    Heating the plate and causing it to expand...
    Means, that when it cools down... The thread will be a nice snug fit on the end of the crank...

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    There is nothing that cannot be fixed with a good cup of Tea.

  13. #25
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    32 Hours......

    Pull Start Shell...

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    There is nothing that cannot be fixed with a good cup of Tea.

  14. #26
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    Ingredients...

    All the parts come together..

    MrTea Casing.
    China Eazi start internals.

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    There is nothing that cannot be fixed with a good cup of Tea.

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    56yroldkid (02-01-2017)

  16. #27
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    WOW! That's a manual machining masterpiece!

  17. The Following User Says Thank You to CaliusOptimus For This Useful Post:

    MrTea (02-01-2017)

  18. #28
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    Quote Originally Posted by CaliusOptimus View Post
    WOW! That's a manual machining masterpiece!
    Lathe, milling machine, belt sander, polish.... All a man needs for some manual relaxation..

    The best bit was using a long shank 2mm carbide cutter to do the return spring hook in the base..

    It didn't cost much to make...
    All I had to buy was-
    A block of alloy
    Rotary table
    125mm chuck
    2 carbide cutters
    A box of Tea bags

    ... J.
    There is nothing that cannot be fixed with a good cup of Tea.

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    Depths of Hell (02-01-2017),SJ (02-01-2017)

  20. #29
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    Quote Originally Posted by MrTea View Post
    Lathe, milling machine, belt sander, polish....
    ... J.
    This, and a Chinese pullstart to appreciate, dismantle, then throw away and make all on yourself with internals of the Zenoah EZ-Start.

    It is probably more than 40 hours to late to direct attention towards a kickstart, there are some available for this engine seize (from Honda I think - Robotguy got one for his CVT' ed GSR40 engine and posted about it in a built-thread way back in time).

    Great built, and thanks for the explanation in response to the brake-related question.

  21. #30
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    Very nice!

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