Automotive Electromagent

Discussion in 'General Motoring' started by Les & Claire, Apr 15, 2004.

  1. Les & Claire

    Les & Claire Guest

    Hi there!
    Right, i've dropped a small nut down into the interior of
    my timing cover whilst changing a water pump on my Volvo. This normally
    means a huge strip down for a stupid mistake. But, I surmised that as the
    cover is plastic and open at the top, I have 12 - 15V DC easily available
    and a multitude of steel / iron tools I could wind a coil round an iron rod,
    then connect it accross the terminals of the cars battery. Thus forming an
    electromagnet to "tickle" the nut up the front of the plastic cover until I
    can recover it.

    What i'm worried about is that i'm basically making a dead short accross the
    terminals. Am I right in thinking that it's the length / thickness of the
    copper wire that will cause enough resistance to protect the battery? If so,
    how long is safe? ( Hmmm, this appears to be a "How long is a piece of
    string" question ) Is this a way to get out of a bind, or a way to wreck the
    battery?

    Les



    --
    http://www.stuffmongers.com

    "Homo sapiens, the first truly free species, is about to decommission
    natural selection, the force that made us.... Soon we must look deep within
    ourselves and decide what we wish to become."
    Edward O. Wilson
    Consilience, The Unity of Knowledge

    Remove frontal lobes to reply from a NG
     
    Les & Claire, Apr 15, 2004
    #1
  2. Because there's more to the internet than hits alone, Les & Claire
    wrote:
    I don't get what the problem is. Is the K engine radically different
    to the other red blocks?

    Just remove the crank pulley and the bottom part of the timing cover.
    In fact I bet you could get a small nut out without taking the pulley
    off - just flex the plastic cover a little.


    --

    Stewart Hargrave

    Never wear a hat that has more character than you - Utah Philips


    For email, replace 'SpamOnlyToHere' with my name
     
    Stewart Hargrave, Apr 15, 2004
    #2
  3. Les & Claire

    LaoFuZhi Guest

    Many hundreds of turns would be necessary..... And experiments could be
    bloody dangerous!!!!

    Why not just securely glue a magnet onto a plastic or wooden rod????.... Or
    use a large magnet such as that from a speaker to magnatise a metal rod???
     
    LaoFuZhi, Apr 15, 2004
    #3
  4. Les & Claire

    Mike F Guest

    Right. Think of how much wire makes up the coil in a relay. Give this
    idea up.
    Or buy a magnet on a telescopic rod (like an antenna) and / or on a
    flexable shaft, available from tool supply places. Every toolbox should
    have these things.

    --
    Mike F.
    Thornhill (near Toronto), Ont.

    NOTE: new address!!
    Replace tt with t (twice!) and remove parentheses to email me directly.
    (But I check the newsgroup more often than this email address.)
     
    Mike F, Apr 15, 2004
    #4
  5. Les & Claire

    Les & Claire Guest

    just got one of those very devices......

    Les

    --
    http://www.stuffmongers.com

    "Homo sapiens, the first truly free species, is about to decommission
    natural selection, the force that made us.... Soon we must look deep
    within ourselves and decide what we wish to become." Edward O. Wilson
    Consilience, The Unity of Knowledge

    Remove frontal lobes to reply from a NG
     
    Les & Claire, Apr 15, 2004
    #5
  6. Les & Claire

    Les & Claire Guest


    Well, loosened bottom cover as much as possible and even with magnetic
    probe can not find the nut. Could it have dropped into the sump? Is it open
    to the sump from the timing gear? I really don't want to leave it in there
    if I can help it.
    If i'm to find it i will have to remove bottom pulley. This means
    tools. I'm on a tight budget, what's the easiest, cheapest way to get the
    thing off? I see tales of special volvo tools, "jamming" cogs, etc.

    so, I buy a socket to fit.... what next? any tips for hassle free
    removal?

    What makes this worse is knowing IT'S ALL MY DAMN FAULT FOR RUSHING IN THE
    FIRST PLACE!!!! AAaargh!

    Les




    --
    http://www.stuffmongers.com

    "Homo sapiens, the first truly free species, is about to decommission
    natural selection, the force that made us.... Soon we must look deep
    within ourselves and decide what we wish to become." Edward O. Wilson
    Consilience, The Unity of Knowledge

    Remove frontal lobes to reply from a NG
     
    Les & Claire, Apr 15, 2004
    #6
  7. Les & Claire

    David Taylor Guest

    Why not just securely glue a magnet onto a plastic or wooden rod????.... Or
    Why not use just either the speaker itself? A telescopic magnet like
    you can buy in car accessory shops? A big magnet?

    David.
     
    David Taylor, Apr 15, 2004
    #7
  8. Les & Claire

    David Taylor Guest

    Or buy a magnet on a telescopic rod (like an antenna) and / or on a
    Quite, they're powerful too, will pick up a spanner.
     
    David Taylor, Apr 15, 2004
    #8
  9. Because there's more to the internet than hits alone, Les & Claire
    wrote:

    No. The sump doesn't connect through to the timing gear - there'd be
    oil everywhere, if it did.
    I think you're right. It *probably* wouldn't do anything, and just sit
    there until the timing belt is next changed. But it *might* get caught
    up in the belt and do damage.

    How about:

    Use double sided tape to fasten a smallish magnet (fridge magnet? -
    maybe not strong enough) to the timing belt. Turn the engine over by
    hand (so that the magnet avoids the tensioner), and back again; see if
    it picks up the nut.

    Or...

    Pour a strong mixture of sulphuric acid down the timing cover, and
    dissolve the nut...Err, no?

    Or...

    Buy the socket to fit the pulley. Consider it an investment, and
    change your own timing belt next time. In fact it wouldn't be such a
    bad idea to change the timing belt now (check tensioner, too), unless
    it's reletively new. But if your budget is seriously tight this may
    not be an option.


    --

    Stewart Hargrave

    Never wear a hat that has more character than you - Utah Philips


    For email, replace 'SpamOnlyToHere' with my name
     
    Stewart Hargrave, Apr 15, 2004
    #9
  10. Les & Claire

    Les & Claire Guest

    Stewart,

    This works very well, satisfying "click" as it picks up the nut. Also,
    if you lever the pump upwards using top of alternator mounting as a fulcrum
    ( I used rubber handle of small hammer )you can seal the top ring first
    time. Thus avoiding the stripdown and chaos I created for myself.

    Thanks for the help! ( Big sigh of relief! )

    les



    --
    http://www.stuffmongers.com

    "Homo sapiens, the first truly free species, is about to decommission
    natural selection, the force that made us.... Soon we must look deep
    within ourselves and decide what we wish to become." Edward O. Wilson
    Consilience, The Unity of Knowledge

    Remove frontal lobes to reply from a NG
     
    Les & Claire, Apr 16, 2004
    #10
  11. Les & Claire

    Bob Noble Guest

    You need to complete the supplying of your toolbox, Les . . .

    One of the handier pieces to have is the *strong* magnet mounted at the
    end of a piece of spring(?) about 3' long. This pairs nicely with the
    similar tool that has a plunger at the one end (like a hypodermic
    syringe) and three strips (2mm x 6cm) that will extend from the
    "business" end, each with a right-angle "hook" - great for picking up
    things that can be seen or, with enopugh "fishing" time, not seen but
    felt.

    bob noble
    Reno, NV, USA
     
    Bob Noble, Apr 17, 2004
    #11
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