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Anon
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Reversing light switch
Any of you clever bods have any idea if these are repairable?
Every time I connect it up with the ignition on, the fuse blows.
It's a 4 speed box (I assume it's a standard one) from a 1981 CF1 250.
They seem to be like hens teeth. Adrian Bailey had one, but when I rang it had gone. And he wanted almost £60 for it as well.
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 Mon 05 Mar 2012 @ 20:18
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Anon
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First of all which box as there are 2 4 speed boxes.
If its the vauxhall/bedford box then the switches are easy to find.
If its a ZF box then theses are very hard to find.....
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Mon 05 Mar 2012 @ 20:24
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Anon
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Didn't know there was more than one type.
However, it is easily accessed from under the passenger side. Both of the wires were left dangling by the previous owner. I can now see why.
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Mon 05 Mar 2012 @ 20:28
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Anon
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Switches very rarely causes fuses blow, this is down to wiring or shorted bulb holders.
Try disconnecting the rear lamps if fuse still blows then disconnect the switch .
you will need to crawl under the Beddy to trace all the wiring though...
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Mon 05 Mar 2012 @ 20:28
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Anon
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Thanks Gethin.
I'll try that.
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Mon 05 Mar 2012 @ 20:30
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Anon
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Also, to eliminate a suspected switch fault, connect the switch contacts together- a paperclip will do the trick. If fuse still goes, the switch is fine and it is a wiring fault. If the lights work and the fuse doesnt, theres something very odd going on with the switch.
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Mon 05 Mar 2012 @ 22:12
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Anon
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Facelift rear lamps can fill up with water if the lens is cracked ...
Wire to go for when checking for rear wiring short circuit is green+brown; sometimes can be confused with green+red (left hand turn signal).
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Mon 05 Mar 2012 @ 22:52
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Anon
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The Rockbus is in getting some welding and a new coat of paint at the mo. I'll check this lot when I get him back.
I was assuming it's the switch though, because when it's connected, the ignition is on and reverse is not engaged, the fuse blows. I'll check.
Thanks guys.
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Tue 06 Mar 2012 @ 12:48
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