Dumb question - Relays

Discussion in 'UK Motorcycles' started by Steve, Mar 19, 2011.

  1. Steve

    Steve Guest

    A relay failed on me last week switching my high beam aux lights on
    after i'd parked up and flattening the battery.
    Today I have been putting new fuse holders into the circuit and I've
    noticed the Bosch relay always seem to be warm, even with the bike
    switched off.Clearly current is flowing through the relay as its
    direct to the battery for the input live - are they meant to be warm
    or is
    my bike about to explode?
    It's not something i've ever checked before.

    Steve, Mar 19, 2011
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  2. Steve

    wessie Guest

    the relay will be warm if there is current flowing through the coil. The
    question is, why is current flowing through the coil when the bike is
    parked up? Sounds like you have the switch for the circuit in the wrong
    wessie, Mar 19, 2011
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  3. Steve

    rick Guest

    Aiui the relay coils should only be carrying current when the contacts are
    required to change over. This would only be momentary so they should
    definitely not be warm. I would look for a short to ground on the earth side
    of the relay coils.

    rick, Mar 19, 2011
  4. <snip>

    Ladeez & gennelmen - the man who noticed I'd seriously underpriced
    something on my pitch at Kempton Park today and who snapped it up

    The Older Gentleman, Mar 19, 2011
  5. Only a latching relay: normal relays (as in most of them) require current
    through the coil continuously while in the 'active' state. 'Active' can
    include contacts closed, open, or one (or more) sets open while one (or
    more) alternative sets are closed in the case of a changeover relay,
    depending on the relay type.
    PipL alter ego, Mar 19, 2011
  6. Steve

    Steve Guest

    Well ,its been fine for the last year , the switch is the high beam
    so I don't think its wired wrongly.
    Its only just warm , but noticeable IYSWIM.
    Some Googling for relays seem to suggest its normal on SPDT
    relays , so i'll just keep an eye on it I think.
    Steve, Mar 19, 2011
  7. Steve

    Steve Guest

    Heh - BMW power sockets , £25 from Motorworks
    or £2.50 from Classicspares Ltd.
    Bargain it was.
    Steve, Mar 19, 2011
  8. Steve

    petrolcan Guest

    Well done that man.
    petrolcan, Mar 20, 2011
  9. Steve

    Lozzo Guest

    These would be the BMW 12V power sockets that only take the smaller
    Hella plugs that you have to buy and fit to all your phone chargers and
    suchlike, instead of the industry standard car type ones they come with
    and that everyone else uses?

    Versys 650 Inter-Continental Hyperbolistic Missile , CBR600F-W racebike
    in the making, TS250C, RD400F (somewhere)
    BMW E46 318iSE (it's a car, not one of those 2-wheeled pieces of shite
    they churn out)
    Lozzo, Mar 20, 2011
  10. Steve

    Steve Guest

    No , these would be the Industry Standard DIN 4165 connectors
    that BMW bikes are fitted with as standard equipment to power
    accessories with.
    I didn't realise that a Versys comes with a Cigarette Lighter socket.
    Steve, Mar 20, 2011
  11. Steve

    Andy Bonwick Guest

    Do people actually change the plugs? That' s a bit dopey when all you
    need to do is buy an adaptor and plug it in. It's not just BMW btw,
    the plug I bought for my Tenere was one of the smaller Hella ones.
    Andy Bonwick, Mar 20, 2011
  12. Steve

    Alex Ferrier Guest

    The smaller, more secure, higher current rated and more weatherproof
    plugs and sockets that only BMW riders ( oh, and and most Trucks drivers)

    Alex Ferrier, Mar 20, 2011
  13. Steve

    wessie Guest

    No, they are the Euro DIN standard socket used by Triumph as well. Many
    cig lighter plugs are universal and have a red bit of plastic on the end
    that comes off to convert it to the Euro DIN. Just have a look at an
    Optimate charging lead.

    One advantage of the Euro DIN socket is that there are parts made to
    marine spec. which as Alex says, makes them ideal for all weather

    BTW, for carrot cruncher types, if you need an adapter for a phone
    charger etc then these sockets are used in John Deere tractors so your
    local farm supplies place or tractor shop may have the part in stock at
    farmer's prices.
    wessie, Mar 20, 2011
  14. Steve

    SIRPip Guest

    "Now, yew zee, if yew'n went to one o' they flashy toype shops loike
    Maaaplin, yew'd'a bin payin' zeriouz CASH, boy, know, what I'm zayin'?
    Now, 'ere, zee, we wantz juzt three carrotz an' a cupple o'spudz.

    "Arr, foine. Got change for a turnip?"
    SIRPip, Mar 20, 2011
  15. Steve

    Andy Bonwick Guest

    Why let that get in the way of him having a pop at BMW? I'd be hanging
    my head in shame if the best I could do was to highlight the fact that
    a manufacturer specs their bikes to suit their home market before
    others and I'd be even more ashamed if those specs were significantly
    higher than most manufacturers.
    Andy Bonwick, Mar 20, 2011
  16. Steve

    wessie Guest

    it's the Triumph branding on the bullet-foot interface that amuses me.
    wessie, Mar 20, 2011
  17. Steve

    Salad Dodger Guest

    I must admit, it's long been a mystery to me why the mighty H's
    flagship tourer does not have such a device as standard.

    It can't be through lack of space, or available electricity, and it's
    not because they're averse to loading up the thing with wossnames,
    Salad Dodger, Mar 20, 2011
  18. Steve

    Andy Bonwick Guest

    I've got to admit that from a personal point of view I'd sooner the
    plugs were the larger size that we find in UK cars but you can buy an
    adaptor for under a tenner so it's still cheaper than buying a new
    accessory socket and wiring it in from scratch. I don't know why more
    manufacturers don't fit a socket as a standard fitment on everything
    apart from out and out sports bikes but you can go and buy one with
    crocodile clips for only a small outlay and it's job done. I used such
    a device when I spent a week camping at the Manx GP a couple of years
    ago left it permanently clipped in place then tucked under the pillion
    pad so it was a matter of seconds to remove the pad and plug my phone
    Andy Bonwick, Mar 20, 2011
  19. Steve

    Higgins Guest

    On 20/03/2011 16:37, Salad Dodger wrote:

    Is there anything you can plug in that's not available as a factory option?
    Higgins, Mar 20, 2011
  20. Steve

    Lozzo Guest

    It doesn't, I fitted one to suit the accessories I'd be buying, which
    are all fitted with the industry standard car cigarette lighter plug...
    like just about every phone charger and air bed pump etc is.

    The BMW ones always used to be the smaller sized socket, have they
    finally decided to move into the 20th century then?

    Versys 650 Inter-Continental Hyperbolistic Missile , CBR600F-W racebike
    in the making, TS250C, RD400F (somewhere)
    BMW E46 318iSE (it's a car, not one of those 2-wheeled pieces of shite
    they churn out)
    Lozzo, Mar 20, 2011
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