MSD & Pertronix ignitors, Is there any history of problems? |
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MSD & Pertronix ignitors, Is there any history of problems? |
Gatornapper |
Apr 12 2020, 08:46 PM
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#1
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Senior Member Group: Members Posts: 1,259 Joined: 22-September 17 From: Woods west of Richmond, VA Member No.: 21,449 Region Association: South East States |
It's looking like (diagnosis not really started - just happened tonight) I have had both a Pertronix and Hot-Spark ignitors get killed on my 914 on which I've had MSD since I got it.
Not sure about the Pertronix, but tonight both engine and tach started going haywire, then just suddenly died & lost all ignition at 60mph 3/4 mile from home. Had to tow car back. Something similar seemed to happen with the Hot-Spark a few weeks ago, only without the tach issue. I do have a .8ohm resister between the 12v from the ignition switch in front of the ignitor. Running an 050 dizzy and blue Bosche coil. Is there any history of MSD's killing electronic ignitors? Rickb45 just put in an MSD and not long afterwards, his Pertronix died too......... If not, any one have any ideas? Oh, my alternator runs low, generally 12.2 - 12.8v max with a good VR - have new alternator in my garage to put in ASAP. Pretty sure alternator is not putting out spikes, but really don't know as I do not have a recording oscilloscope...... ;-) GN |
Gatornapper |
Apr 13 2020, 04:37 PM
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#2
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Senior Member Group: Members Posts: 1,259 Joined: 22-September 17 From: Woods west of Richmond, VA Member No.: 21,449 Region Association: South East States |
Well, thankfully the Pertronix is fine.....as I had no spark, I jumped to the conclusion that the Pertronix had failed.
No - a mechanic who put in the MSD originally had done a very poor crimp job on a spade terminal from the 12v ignition switch to the MSD - so the MSD said, "No power at ignition switch = I shut down." 5 min to find it, 5 min to fix it, car back to running great. Yes Perry, I'm an old points guy myself, but have gone to electronic ignition on most of my old vehicles - having a half a dozen, that's too many sets of points to keep after - tho I do set them in my sleep.......what we learned on, right? Now, as to Rick's '72.....we don't know....... GN |
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