Mk3 alternator

Hi everyone I have a mk3 I'm playing with & was wondering how can I test alternator wires to see which is which over time the fuel has made both green & yellow Also From the wiring loom near headsteady I have 6 red wires joined to one eyelet is this normal and finally does the positive from harness to battery get taped up or do I earth that to frame or spare next to purple to red 3 way terminal 2 red 1 purple one side 1 red 1 purple the other thanks John Can I send photos with iPhone & photo bucket

Chocko said:

I have a mk3 I'm playing with & was wondering how can I test alternator wires to see which is which over time the fuel has made both green & yellow

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The alternator output is AC, although the wires are different colours, it doesn't actually matter.

Chocko said:

From the wiring loom near headsteady I have 6 red wires joined to one eyelet is this normal

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I wouldn't say it's normal to have that many (is electronic ignition fitted?) however, it should be OK left as it is.

Chocko said:

and finally does the positive from harness to battery get taped up or do I earth that to frame or spare next

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The "battery positive" ring terminal from the harness is best connected to ground or taped up, IF the starter motor is in use.
The Red (+) harness ground to battery connection shown on the Mk.3 wiring diagram is technically incorrect.

Thanks very much Lab