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Thread: Phill's Nova Project finally begins

  1. #281
    Yes,yes,yes, I had the same thought.

    Both cylinders in a hydraulicworkshop, now the cylinders perfect, new hydraulic oil, exactly air bleed, but the canopy rises unevenly......all work for the cat !
    Then I have made a adjustment lower mounting point on the slow side and experiment what the best point is.
    TATATATATATA........ the canopy rises perfect in 5 sekonds up and in 3 sekonds down.

    Up quiet, down only with a soft ssssssss (an electric valve open the oil circuit).
    The Smiths Pump had roaring.

  2. #282
    The new changeover relay arrived today and is working properly this time. The roof raises much quicker and you can hear there is much less strain on the pump. The roof is also operating much more level now (though still not holding a negative pressure). Close examination of the rams reveals some weeping on the off side ram as Lauren suspected.

    https://youtu.be/gyI1tJ2zfto
    "The most beautiful kit car in the world - Motor"

    http://stores.lulu.com/rightsigns

  3. #283
    Senior Member BlueNova's Avatar
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    That's a definite improvement Phill

  4. #284
    Quote Originally Posted by Phill View Post
    The new changeover relay arrived today and is working properly this time. The roof raises much quicker and you can hear there is much less strain on the pump. The roof is also operating much more level now (though still not holding a negative pressure). Close examination of the rams reveals some weeping on the off side ram as Lauren suspected.

    https://youtu.be/gyI1tJ2zfto

    Getting there for sure, but still goes down too fast for my liking. Do you have any form of valve/restrictor in place to regulate return speed?
    All the best,

    Jim

    Club Nova Member, SDBC Member, GRRC Member, Southern Classics



    Read more about latest Nova developments in Complete Kit Car

  5. #285
    Quote Originally Posted by jim73vw View Post
    Getting there for sure, but still goes down too fast for my liking. Do you have any form of valve/restrictor in place to regulate return speed?
    Too fast for my liking too. You should try sitting inside while the lids closing.

    I'm looking into fitting a restrictor valve into the down cycle to slow it down
    "The most beautiful kit car in the world - Motor"

    http://stores.lulu.com/rightsigns

  6. #286
    Finally got around to doing something about the holes in the dashboard. As you can see, the dashboard is a mish-mash of holes everywhere

    IMG_7079[1].jpg

    So I made up a paper template and used this to cut the shape into a piece of brushed Aluminium composite using a Jigsaw which was curved by hand to fit the shape of the dash

    IMG_7077[1].jpg

    IMG_7087[1].jpg

    This was fitted into place using countersunk screws.
    The new panel is now ready for cutting to add instruments, switches and lights...all I need now is some instruments to fit
    "The most beautiful kit car in the world - Motor"

    http://stores.lulu.com/rightsigns

  7. #287
    ***Euro-Nova Supporter***
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    rather than fitting a restrictor for the down speed, are you sure the down speed and the lack of holding down pressure aren't related? i.e. if you resolved the issue with it not holding down, it might also resolve the speed it goes down at?

  8. #288
    I did wonder about that Martin - Everyone is in agreement that it should run more slowly than it does on the way down. Perhaps fitting a restrictor valve is merely treating the systems whereas maybe I should be discovering the root cause?

    I'm away to conduct a few experiments..
    "The most beautiful kit car in the world - Motor"

    http://stores.lulu.com/rightsigns

  9. #289
    Senior Member MicksRedNova's Avatar
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    Quote Originally Posted by MartinB View Post
    rather than fitting a restrictor for the down speed, are you sure the down speed and the lack of holding down pressure aren't related? i.e. if you resolved the issue with it not holding down, it might also resolve the speed it goes down at?
    I'm with Martin here. I think there is a solenoid valve problem related to the lack of hold down pressure and 'drops like a stone' closing cycle, which reminds me of the white Nova owned by Paul & Matt that came to Carfest North in 2012. They didn't even power the pump down just powered the down solenoid and the roof closed in about 2 seconds, like a mouse trap closing .

    I assume your pump is plumbed in the normal way? See diagram in Modification manual.

    Mick
    Club Nova Member (F-036)

    A BMW X3 driver just added to the Nova jobs I need to do!

    Follow my Lazarus project at: http://www.micksrednova.co.uk/index.html
    which may take more than four days!!

  10. #290
    I tried switching ports on the pump so that down = up and vice versa, expecting to see the roof slowly drop down when raised, but holding a negative pressure when closed if the fault lay with on of the solenoids in the pump but there was no discernable difference?
    "The most beautiful kit car in the world - Motor"

    http://stores.lulu.com/rightsigns

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