Reply To: 6 to 12 volt conversion.

[David FaulknerParticipant]

The alternator runs a little slower than it would in its intended installation

That’s the problem I found as well Chris as the Traction idles at 500 rpm V a modern car which idles at circa 850 rm so it wasn’t throwing out the full 14v at low revs.

I managed to source a smaller 76 diameter pulley which I had machined locally to reduce it again to circa 70 mm diameter. However the tight bend it created in the standard belt meant that it began to crack after 3,000 kms so I changed that to a Gates ‘B section notched’ (B38.MN) belt to ensure it wouldn’t crack again and it’s been fine for another 8,000 miles.

If I was starting again, knowing how I use the car now, I would have left the system on 6v and probably looked for a 6v ‘Dynator’ conversion, but hindsight is a wonderful thing….