8/10/2008

More info on the green wire fix

Pelican posts

in this  

The Green wire...

this info on making the splice

If you can find a new connector [VW or Porsche dealer, maybe] that plugs into the pickup coil connector at the distributor, and some RG-58 or RG-174 coax at Radio Shack ... you can attempt building a replacement. Putting reliable, secure connectors onto coax is a bit of an art ... we aren't talking about an 'F' connector for a TV!

The connection at the CDI unit requires uninsulated 0.25" Fastons to replace the ones you remove from the 6-pin connector ... again, not your typical connector on coax, but it is doable. To put ends on coax reliably, you need to strip back 2" - 3" of insulation, use a pen to force a hole in the braid -- enlarge the hole without tearing the wires in the braid, pull the center wire out through the hole, then pull out the braid to one side and twist so you have two stranded wires to terminate. Both ends of the coax need to be prepped this way.

My choice would be RG-180 Teflon-insulated coax, as the PVC sheath on RG-58 & RG-174 coax really isn't up to the underhood temps of a 911!

What you want to test for at pins #7 & #31d at the CDI connector [other end of green coax] is 600 Ohms resistance +/- 10% at room temp.