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To beep or not to beep

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Clem2112:

Found my old grubby original with its plastic cover and the special nut to mount it.
I made up a stainless bracket for the pea sized aftermarket horn I fitted for the inaugural MoT , so the mont hole will need opening up if I get the proper one working.

Not sure if u-sonic will help at this point as it's so greasy on the outside -
In days of old, petrol was the best cleaner !

Clem2112:
Ultrasonic worked a treat after the horn was degreased with jizer.
It took 3 goes before the water stayed clear.
After draining , I dried it out on a radiator for an hour, connected it up and adjusted to get a decent noise.
It just needs some paint now, then the plastic cover can go on.    :D

Liam:
Thought I'd up-date this thread.  Just spent a couple of days trying to sort the original horn on my 750F...  Last resort was boiling.  Wish I tried this first off.  Works like a treat now.  I dried it out for twenty minutes in a fan oven at a low temp and sprayed everything with WD40 before reinstallation...  boom!

Who'd a thought! 

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