Dan Baldwin Posted May 18, 2001 Share Posted May 18, 2001 I've got a pertronix ignitor in place of the points. Hooked up the MSD, no problem, but of course the tach didn't work. Experimented by connecting the former coil + wire to coil+ with the MSD. Tach then worked, but the motor wouldn't run (shorted out the MSD, I guess?) Uplugged that wire and the car ran fine again. Then I tried the Chrysler ballast resistor, to no avail. No tach still. Ideers? Quote Link to comment Share on other sites More sharing options...
Dan Baldwin Posted May 18, 2001 Author Share Posted May 18, 2001 Found an ignition faq that sez to remove the inductive loop from the pre-75 tach, and run the tach input to the msd tach output. How you do dis? Last resort is to buy the $45 8920 MSD adaptor, which is supposedly a sure-fire fix. Quote Link to comment Share on other sites More sharing options...
pparaska Posted May 19, 2001 Share Posted May 19, 2001 Dan, for the money of buying a tach adapter, I'd add a bit more and just put an aftermarket 5" tach in the thing. Easy to do and not a ton of money. Alot more accurate I'd imagine, also. Any idea how accurate the OE tach will be after the adpater is installed? Quote Link to comment Share on other sites More sharing options...
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