jzd14 Posted March 4, 2003 Share Posted March 4, 2003 i need some help, anyone's advice is appreciated: i have a 240z with the an L28 from a 280z in it instead of having points, i have a pertronix 'ignitor' that converts it to a magnetic pickup i hooked up my MSD 6A over the weekend exactly like the manual said and i ended up frying my pertronix (i think it died the first time i tried to start it) i had an extra distributor with points so i through that in, hooked it up to the MSD, and now it runs fine i have the ignition wires (green-white and black-white) running through the ballast resistor so i don't know where the problem is my question: what do i need to do to get the MSD to run with the pertronix also, a couple months ago, i took my 240z tach out and replaced its "guts" with the "guts" of a 280 tach (per JTR) it ran fine with the voltage sensing wire hooked up to the negative side of the coil when i hooked up my MSD, i put the voltage sensing wire on the tach terminal of the MSD - now the tach doesn't work at all what do i need to do to get the tach to work? i had the idea that maybe i can just hook the voltage sensing wire back up to the negative side of the coil, but i'm not sure how the MSD operates to know whether that will work or possibly fry the tach thx for taking the time to read this, your replies will be greatly appreciated Quote Link to comment Share on other sites More sharing options...
Guest AlsoRanFPrepared Posted March 5, 2003 Share Posted March 5, 2003 I hooked my MSD 6AL up exactly as the manual recommended for the Pertronix ignitor style ignition and have had no issues. The Pertronix setup was the on the very back of the manual as I recall. I am not running the tach from the 240 and instead ran the Autometer tach right off of the MSD box so i cant help much there. Did you hook it up as instructed by MSD for the Pertronix ignition? I did not use the ballast at all with the Pertronix and MSD setup. Quote Link to comment Share on other sites More sharing options...
speeder Posted March 5, 2003 Share Posted March 5, 2003 When running the 280Z Tach with an MSD ignition, sometimes the tach can be made to work by bypassing the series resistor , if present, that is connected from the stock coil - terminal (or whichever was the sense connection wire) to the tach input. The resistor is rectangular, about 2" long, black, and tied into the bundle of wires over the passenger footwell. If this doesn't make the tach work, then a Tach Adaptor, MSD # 8920 will be required. Every Z seems to need something different to make the tach work wih an MSD, but I believe these are all the possibilities. I've seen a 280 that didn't need any wiring changes to get the tach working. Quote Link to comment Share on other sites More sharing options...
jzd14 Posted March 20, 2003 Author Share Posted March 20, 2003 i looked through my MSD manual and it turns out that i have an earlier edition that doesn't have the page about hooking it up to a pertronix ignitor if anyone has this page could they please email it to me at jzd14@yahoo.com i would greatly appreciate it, thx also, where can i get the tach adapter that i'd need to make my tach work? -scott Quote Link to comment Share on other sites More sharing options...
speeder Posted March 20, 2003 Share Posted March 20, 2003 That's the MSD 8920 from Summit or Jeg's. Quote Link to comment Share on other sites More sharing options...
Dave240Z Posted March 21, 2003 Share Posted March 21, 2003 I have the MSD and Pertronix setup installed and have had no issues. You do need the newer manual though, which explains how to hook them up. The Pertronix specific instructions are near the end of the document. Here's a link for you... http://www.msdignition.com/pdf/6series.pdf Quote Link to comment Share on other sites More sharing options...
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