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Thread: Repairing GTS clock

  1. #11
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    Quote Originally Posted by jennie285 View Post
    Good stuff, I am wondering why ours doesn't hum, and will probably regret saying it didn't after sleeping in the van for 4 days while at Nats, and finding it does...Rodney had the dash out last weekend, and put a little lug on the clock to change the time as all that remained on it was the post which was difficult to get hold of to turn...and yes the way he started the clock back up was to tap it, and turn the hands around, it is still going thankfully.....
    I think some hum louder than others possibly because one of the diodes or capacitors is lightly touching the tuning fork. One of these ones was making a heap of noise and that was why.
    The tuning fork makes a high pitched note just like a....... tuning fork! And you really have to put your ear up to the clock to hear it.

    The clock in my WB hums like a champion though!

  2. #12
    Super Moderator Absinth's Avatar
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    Quote Originally Posted by jennie 285 View Post
    and yes the way he started the clock back up was to tap it, and turn the hands around, it is still going thankfully.....
    To re-start the clock after dis-connecting the battery you do a James has said.... pull the adjuster knob out and then let it flick back, there is a bevelled collar on the other end of the shaft that spins the wheel and the tuning fork then takes over.


    wb wrote:
    OK. Replaced the 3 Capacitors last night. Put it back together and wired it up to a uhf base station transformer........ and the tuning fork now hums away but it wont drive the the gear for some reason. Will try a few more things and see how I go.


    That was the problem I found when I changed the PC board from a working clock to a non-working one, the fork hummed but wouldn't keep the clock going..... the only thing I could see that would cause this was either a weak circuit from the old board or the tuning fork is not adjusted properly....

    They are frustrating aren't they.... :Chin:


    4/75 HJ XX7 Sandman Panelvan ... Persian Sand currently restoring
    7/76 HX Monaro 4dr 308 4sp... Absinth Yellow and rusty as hell.. SOLD
    3/77 HX Sandman Panelvan ... Absinth Yellow and rusty as hell .. SOLD

    http://www.44gpw.info/sandman-decalssmall2.jpg

  3. #13
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    I have a theory, if you put a isolating washer(maybe a rubber washer) between the dash facia and the clock mounting tabs it could take most of the hum away?
    I just noticed that the clock on my kitchen bench is heaps quieter when I pick it up.
    Just a thought.

  4. #14
    Super Moderator Absinth's Avatar
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    So....... any progress wb????????????????????
    4/75 HJ XX7 Sandman Panelvan ... Persian Sand currently restoring
    7/76 HX Monaro 4dr 308 4sp... Absinth Yellow and rusty as hell.. SOLD
    3/77 HX Sandman Panelvan ... Absinth Yellow and rusty as hell .. SOLD

    http://www.44gpw.info/sandman-decalssmall2.jpg

  5. #15
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    I have one going and one I need to have another look at. Havnt managed to buy anymore to repair yet. Must get back on to it!

    The basic conclusion I have reached was if you replace the capacitors they will work again...... maybe lol. More work is needed on this theory.

  6. #16
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    I just repaired Jennie and Rods yellow needle clock. Replaced the three caps once again and away it went. Just have to re-assemble it and hopefully find a knob for it in the parts I bought on the bay.

  7. #17
    Forum Mum jennie285's Avatar
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    If you have a spare knob we need one for yellow van currently, (of course we will pay for it) Rodney put a metal thing on it so he could grip it to turn it around to the correct time, if the battery was disconnected...or flat...thank you James for repairing...
    HZ Jasmine Yellow Windowless Sandman, now being driven everywhere and is finished!
    HZ Madeira Red Windowless sandman now Sold to Bigrob
    HX Mandarin Red Sandman Ute finished, and club registered
    1979 HZ malachite windowless van with 308 5spd, all chromed up and shiny finished and named "The Player"
    Married to RodneyHZ253

  8. #18
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    Tic Toc, or rather hmmmmmmm

    Last edited by Absinth; 29-05-2011 at 10:40 AM.

  9. #19
    Super Moderator Absinth's Avatar
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    Great job mate..... well done
    4/75 HJ XX7 Sandman Panelvan ... Persian Sand currently restoring
    7/76 HX Monaro 4dr 308 4sp... Absinth Yellow and rusty as hell.. SOLD
    3/77 HX Sandman Panelvan ... Absinth Yellow and rusty as hell .. SOLD

    http://www.44gpw.info/sandman-decalssmall2.jpg

  10. #20
    Forum Mum jennie285's Avatar
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    What a clever idea to film it working, for you, do you need more paint, or shall I drop some money into your account?
    HZ Jasmine Yellow Windowless Sandman, now being driven everywhere and is finished!
    HZ Madeira Red Windowless sandman now Sold to Bigrob
    HX Mandarin Red Sandman Ute finished, and club registered
    1979 HZ malachite windowless van with 308 5spd, all chromed up and shiny finished and named "The Player"
    Married to RodneyHZ253

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