following a short and heavy discharge my ammeter needle assembly has bent. . Has anyone dissmantled one , before i cut it appart !!
It's unlikely a Motorcycle…
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Hi Graham , It is an orrig…
Hi Graham , It is an orrig 1960 Lucas and a bit rusty but it suits the rest of the bike ! ,I have another orrig that I found in the woods ! ,may be good for bits. The "NEW" ones are indian made and have silly tiny connectors (I have one) and are reputed to "waggle" all the time. I would much prefer an orrig . I bought a new "Lucas" rear light that finished in the bin in 5 minuits ,I then glued the orrig back together that was 10 years ago and its still fine. I do buy new stuff , but it usually finishes up " for display only" in the junk box.
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The difficulty…
Is usually getting inside. Older ones were screw on later that were crimped on as I remember. If you can get the bezel off the instrument is a very simple coil and armature device. If it’s just damaged by a high discharge which drove the needle into the stop post and still works then it is a snipe nose pliers job to straighten the needle. If the coil has burnt and it is not registering, take the guts out of a replacement cheap unit. Probably be able to swap the needle for the right look.
I’ve worked on a few, if you want me to take a look. PM me…
Jon
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Why not....
Why not put the ammeter across a battery to bend the pointer the other way? Be quick!
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I have eaten my words Robert…
I have eaten my words Robert!! I have wrongly assumed that you're dealing with a different ammeter than the one the bike left the factory with. As someone has pointed out the pattern ones are not the best. So yes I see your quandary, if you don't decide to have a go yourself then here is another option for you- (guagerepairs.com). The proprietor {Peter Bond} specialises in motorcycle clocks so I'm wondering if he can help you as well. If you want the gauge to work properly again it might be worth paying a specialist?
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It's unlikely an old Norton Motorcycle still sports its original ammeter. I am inclined to think you'll find it unrepairable, in view of the cost of replacement I'd get onto RGM and buy another.