MSD Fast Distributor Button Wear
Just wondering... Anyone else experience too-fast button wear w/ MSD cap/rotor..? For a LONG time, I barely got 1000 ... maybe 2K ... before there's so much carbon in the cap, it looks like a spider web in there... I know it's going (gone!) downhill when I get crossfire-backfire tendency & hard starts.
I mainly run a 6-al in my 318 Dodge. This button-wear has been going on forever... I tried all the standard solutions. And NO, it wasn't "microfine abrasion on my rotor pick-up!" My opinion has always been that MSD uses a super-soft button INTENTIONALLY to wear out. You can talk about proper resistance etc, but save it till you finish reading lol! ... (Btw -- I also think they should sell just the conductor for the rotor separately... damn! it's even MADE to be removed/replaced ... But they want $$ and lots of it for a new rotor... C'mon ... at least give me the option.)
Anyway -- in my frustration I finally tried an experiment... and it WORKED GREAT. I also run a 350 Chevy stock motor... never had any unusual/out of the ordinary button wear. So I finally bought a Chevy HEI stock replacement button for ~2$. The conductor was just a tad bigger than the MSD, but really close. As it turns out, I think I just used a 1/4" drill to ever-so-slightly enlarge the MSD button hole (copper?) and friction-snugged the GM button into place (I may have had to coping-saw the seated-end of the GM part, too, so it didn't push too hard onto the rotor pick-up...
BINGO. That hybrid set-up ran A+ for 5 times longer at a tiny tiny fraction of the MSD-only cost. It seems the GM stock part button is maybe copper-impregnated carbon, like old tool & die electrodes are cut from? Not sure, but that was my little sucess story.
Any feedback? Anyone else ever try this?