tonk Posted November 1, 2008 Report Posted November 1, 2008 Nothing suffers from corrosion on my bike except the disc rotor bolts (now sorted with clear acrylic varnish) and the rear-light bulb-holder. This is an LED unit with a resistor hanging out the back, along with the 3 terminals and some other bits. This got so corroded last year that the resistor just flaked away. I've just had it repaired and cleaned and I'm ready to re-fit, but... I can't wind it up with electrical tape - the moisture will penetrate I can't use self-amalgamating tape, the sticky-out bits aren't strong enough I can't dribble wax over it cos it gets warm enough to melt it Spraying Scot-oil etc is only a temporary measure and might drip on my tyre There isn't enough room to make it a little house, say out of an old 35mm film canister So any ideas peeps?
gregtrx Posted November 1, 2008 Report Posted November 1, 2008 Why can't you paint over it with the clear varnish? Or, get some sillicon and pot the whole lot in a blob of rubbery jelly. Or, take it off and use araldidte to pot the resistor and connectors, adding an inline connector later on in order to aid removal.
Annaz Posted November 1, 2008 Report Posted November 1, 2008 Yeh, I've solved quite a few outdoor electrical probs with a bit of plastic pipe, and, or a blob of silicone. Also if you go to a decent spares shop or autojumble you can get various sizes of plastic sheathing (ooer) that shrinks to fit when heat is applied, with a hairdryer cig lighter etc. I used this stuff to great effect when building a wiring loom for my Zed, it's magic!
tonk Posted November 2, 2008 Author Report Posted November 2, 2008 Good ideas, both! Would need heat-shrink that's at least an inch diameter though. Silicon sounds like best bet - hadn't thought of that. I could make a sheath, squirt it in and then remove the sheath when it has set - job jobbed! (Don't let gretch read this)
billysbones Posted November 4, 2008 Report Posted November 4, 2008 Good ideas, both! Would need heat-shrink that's at least an inch diameter though. Silicon sounds like best bet - hadn't thought of that. I could make a sheath, squirt it in and then remove the sheath when it has set - job jobbed! (Don't let gretch read this) Inch diameter heat shrink would be no problems. the advantage of this stuff is that it's lined with an adhesive, which is activated by the heat used to shrink it. This should seal it from the elements. It only shrinks so far, though. It won't shrink from an inch down to the diameter of a wire, say. If you want to try it, I should have some that big. let me check tommorrow. if i do, pm me your address and I'll send you a couple of lengths. Obviously, I'll let you know if I have any first!
dodgy_tom Posted November 4, 2008 Report Posted November 4, 2008 Liquid Electrical Tape? I've used it in the past to good effect. Bit of a mess to apply, but works very well.
2 smokes 4 ever Posted November 4, 2008 Report Posted November 4, 2008 smear it in Dielectric (silicone) grease
tonk Posted November 5, 2008 Author Report Posted November 5, 2008 thanks guys, you're all very kind. I replaced the rotten resistor, cleaned it all up and it doesn't work any more! Don't know what's up with it so I'm back to the stock filament stop/tail lamp. Buggeration! Must find another LED alternative - tried an absolute belter by RING but it doesn't have any resistors so it shows a lamp fault on the dash with a flashing yellow warning triangle which is too conspicuous to ignore. (bmw can-bus loom with no fuses). Anyone know how to fix that? There are 3 wires to the bulb holder, would i need an inline resistor on all of them, inc. the earth? PS i can't get another like the one which broke - it was from Canada and is now obsolete
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