Hi

Have a -73 280SE that is running rough.
Have replaced rotor, dist cap, coil, all wires, plugs (BP6ES 0.6 mm gap).
Installed Pertronix point-less ignition.

During the process, I discovered that cyl #1,3 and 5 plugs are black and cyl 2,4 and 6 are clean. Took out points and cleaned carefully, problem remains the same.

Replace trigger points?

I feel this is connected to the triggerpoints somehow.

Any thoughts?

Tom

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1974 MB 230 4 cyl auto Sold
1973 MB 280SE #12004
1970 MB 230/8 #53280
1970 MB 300SEL 6.3 #4509 sold
1968 MB 300SEL 6.3 #0335
1972 MB 280SE 4.5 75k miles sold
1971 MB 230/8 60k miles sold
1972 Volvo 142 60k miles sold
1969 Opel Rekord 1900 sold
1974 L508D Camper