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Thread: PS4002FK experiences

  1. #61
    Join Date
    Sep 2014
    Location
    Auckland, New Zealand
    Posts
    293
    6000 laps completed pre-Xmas. have just changed brushes to Gold Dust ones and fitted new braids. Still pulling like a schoolboy
    Last edited by swodem; 12-30-2014 at 01:36 AM.
    listen, study, spy, try, research, invent

  2. #62
    Join Date
    Jun 2002
    Location
    Cleveland, OH
    Posts
    119
    Quote Originally Posted by swodem View Post
    Still pulling like a schoolboy
    Thanks for the good belly laugh this morning swodem!

  3. #63
    Join Date
    Sep 2014
    Location
    Auckland, New Zealand
    Posts
    293
    Quote Originally Posted by gotboostedvr6 View Post
    When that thing dies can you post pics of the comm?
    Its been running a little flat the last time when compared to a fresh one, and I had to drive it with the sensitivity cranked to full. I guess changing the brushes without a comm true isn't very healthy for a motor? So I decided to retire it and strip down for a peek.
    Very dirty inside, lots of brush dust. I have never cleaned it or done anything other than a quick lube. The motor bushes are fine with no sloppiness on the arm shaft. I expect with a comm true and a break in it'll be good as new but with the seal cracked I can't run it legally at the club so if I do this it'll just be for interest's sake.

    image hosting by http://images.fishnhunt.co.nz/

    Oh and it's done a shade over 9000laps, I was going to take it to ten thousand but couldn't face another marathon at the track...
    Last edited by swodem; 01-30-2015 at 01:28 AM.
    listen, study, spy, try, research, invent

  4. #64
    Join Date
    Jul 2011
    Posts
    459
    Oil got on it.

    I also can see why they throw wires.

  5. #65
    Join Date
    Sep 2014
    Location
    Auckland, New Zealand
    Posts
    293
    Gotboostedvr6 yes its very possible oil was on it, it was quite dirty inside
    I have tried everything I have to clean the black off the comm but nothing seems to shift it.

    What weakness do you see why they would throw wires? I haven't heard of this as a weakness or common fault with this motor
    listen, study, spy, try, research, invent

  6. #66
    Join Date
    Jul 2011
    Posts
    459
    The wires are super sloppy.

  7. #67
    Join Date
    Dec 2007
    Posts
    426
    Certainly not common for these motors to 'throw wires' in RETRO competition...

  8. #68
    Join Date
    Sep 2014
    Location
    Auckland, New Zealand
    Posts
    293
    Was going to go bushwalking this weekend but the weather has been crap so instead gave all the parts a good clean and tickled up the com, re-assembled and put back in the chassis, straightened/flattened the chassis and put some new rubber on....good as new. I changed the gearing to the same as another PS4002FK powered JKX25 car that runs very fast (4.404) and got within 0.08sec of that mounted in a C11.....so probably no loss of power at all.

    Thats not bad for the life its had...
    listen, study, spy, try, research, invent

  9. #69
    Join Date
    Jun 2002
    Location
    Wellington, New Zealand
    Posts
    4,511
    How did you "tickle up the comm"??

    What chassis are you running and what rubber/hub combination?

    What gear ratio are you running up there in Auckland?

    Inquiring minds need to know

  10. #70
    Join Date
    Sep 2014
    Location
    Auckland, New Zealand
    Posts
    293
    That's a bunch of expensive questions Zippity send cash first


    Sent from my iPhone using Tapatalk
    listen, study, spy, try, research, invent

  11. #71
    Join Date
    Jun 2002
    Location
    Wellington, New Zealand
    Posts
    4,511
    I will be installing a "hot" PS4002FK motor into a CTF chassis tomorrow morning and will then take it down to the raceway for some testing.

    Which rubber compound are you finding works best?

    PS Goldust or Big Foot brushes in these motors are illegal for NZSCRA events
    Last edited by Zippity; 02-01-2015 at 03:00 AM.

  12. #72
    Join Date
    Sep 2014
    Location
    Auckland, New Zealand
    Posts
    293
    CTF!? thats like dragging around a sea anchor
    listen, study, spy, try, research, invent

  13. #73
    Join Date
    Jun 2002
    Location
    Wellington, New Zealand
    Posts
    4,511
    It is the only chassis allowed
    Zippity

    "Rules are written by FEAR; and that Racers are motivated by the Fear that somebody may have something that gives others an Edge." - Rocky Russo



  14. #74
    Join Date
    Sep 2014
    Location
    Auckland, New Zealand
    Posts
    293
    Just one question....why? Has no-one submitted a remit to change?
    listen, study, spy, try, research, invent

  15. #75
    Join Date
    Jun 2002
    Location
    Wellington, New Zealand
    Posts
    4,511
    I get kicked back every time I suggest a change

    Some crap about keeping the costs down, beginner's class, etc etc BS etc.........
    Zippity

    "Rules are written by FEAR; and that Racers are motivated by the Fear that somebody may have something that gives others an Edge." - Rocky Russo



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