I've been working on my 84' 633i (11/83), I am at the point where I have ironed out all vacuum leaks. I am moving on to other areas that need the maintence.
The current area of focus is the ignition system. There are misfire issues but it runs and I drive it daily. I'd like to smooth it out. It has newish spark plugs, I got new wires, the distributor cap has a crack in it but I patched it up with some JB weld. I want to replace it, and that is where this topic comes in.
My 6 doesn't have the ignition upgrade. It has the push on rotor arm. (I found this out when my replacement rotor I bought was a bolt in and I took the cap off.
) I have been reading this upgrade was done to help with idling and I did see the thread explaining it all, plus the coolant switch resistor. However my issue is I can't find any place that tells me what I need to get to do the upgrade myself. The thread explaining why didn't tell us how. Some say it depends on the camshaft, others don't, some say you need a pin that will hold the adapter and that was only on certain models, etc. The topics weren't for the 6 series but the e28 533i.
Thus the research for finding the answer has come to a dead end.
I could go and buy a 635 rotor adapter and hope for the best, but I figured I should ask first.
What do I need to get for this ignition upgrade? Is it even worth the effort?
I hope it is as simple as I was thinking it may be from looking at the parts picture. A simple swap maybe?
Thanks for any input!
