Well, after rolling the distributor back one tooth, I can now get my idle firing point to the 4 BTDC it is supposed to be at. And of course she now runs great, not as rich as before at 14 BTDC... smoking richly on hard accels.
When I changed out the faulty trigger points the other month, I must have put the dizzy back in one tooth off. Shame on me for just clamping the dist back down at the same mark on the bracket. The rotor was aligned with the mark I made, but that still didn't catch the error. And I thought that I had just developed another vacuum leak and that was why she was idling higher and running richer....
Good reminder to never just assume everything goes back the way it came out even if it appears to still be set the same....
And so I am still tach-less. Pertronix offered a different way to wire it in, but that was not successful. They said the Pert Black could go to the green ICU tach sense wire. But since that wire shows 12v, and the Pert Black needs to see ground the coil (-) side, that didn't fire at all.
So I am hoping someone has and idea of how to hook up the 5 ICU wires with the Pertronix triggering in this old 450SL so I can have my tach back.
12-09-2006, 09:07 PM
Hybrid Mode
