Author Topic: Re-wiring - what amp wires?  (Read 3045 times)


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Re-wiring - what amp wires?
« on: October 14, 2016, 08:33:50 am »
How do I know what amp wire to buy to re-wire, for example all of the wires going in and out of a siba black box?
Cream Mk1 Scootacar

steven mandell

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Re: Re-wiring - what amp wires?
« Reply #1 on: October 14, 2016, 12:14:32 pm »
The most obvious way is to measure and copy the thickness of the copper core.
I'd use a vernier caliper with a dial indicator for ease of use, but any accurate measuring device will do.

Of course for the Siba black box, they use different gauges for the various wires according to the in service amp load that  each is expected to carry.
I believe that the wire that energizes the starter circuit is the heaviest.
Next highest gauge being for routing the Dynastarter's generated charge to the battery, etc.

Do you not have original wires to copy?
Even burnt up wiring leaves a measurable core.
What exactly is it that you need to rewire?

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Re: Re-wiring - what amp wires?
« Reply #2 on: October 14, 2016, 08:49:46 pm »
The proprietor of Vehicle Wiring Products is a very decent chap and happy to give advice over the phone. Always had excellent service from him and he's very knowledgable. I tried to work out the amperage etc but it was confusing - one call did the trick!