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New alternator. We keep blowing the Pertronix. My builder replaced it again and disconnected the alternator. It seems to be starting fine over the last week.
There's your first clue about where to look for a problem. With the alternator disconnected, the Pertonix gadget lives. That tells me there is something wrong with your charging system..... probably putting out more Voltage than the Pertronix can survive. I'd look there first.
Threads like this one which are all too common are the real reason I wouldn't fool with one of these gadgets. I have no problem with a REAL, OEM manufactured electronic ignition.
That said. Here is a link that may just help you out.
Have you checked the charging voltage when the engine is running. If it's charging more than 14.5 volts the alternator and regulator should be checked together.
I don't understand why some folks are so negative about Pertronix units. I've never had a problem with them in my '67 Corvette, or my '67 Mustang, or my '73 Jag/sbc.
Guess I must just be lucky........
Last edited by tuxnharley; Oct 7, 2015 at 04:38 PM.
Reason: typo
Took me two times for this to happen when I installed the Pertronix 2 in the 65, I hope your mechanic has removed or bypassed the ballast resistor on the firewall...
I don't understand why some folks are so negative about Pertronix units. I've never has a problem with them in my '67 Corvette, or my '67 Mustang, or my '73 Jag/sbc.
Guess I must just be lucky........
I'm not negative about them. It's just my points have yet to fail. And I don't like to fix what's not broken just to tinker with my car. Points have been working for 50 odd years that's good enough for me to believe they work just fine for a STREET driven car.
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I ran Pertronix for several years before getting stranded when the device failed. I considered replacing it with another unit, but I wanted to know why it failed first. All the Pertronix folks wanted to do was replace it (at my expense, of course) instead of determining cause of failure. I went back to points, zero issues since.
I don't understand why some folks are so negative about Pertronix units. I've never has a problem with them in my '67 Corvette, or my '67 Mustang, or my '73 Jag/sbc.
Guess I must just be lucky........
See post #23. Do a google search on "problems with Pertronix". Problems with this device is not limited to Corvettes. Whatever the reason is.
Thank you to all that replied. I think I am on the right path now that all the kind forum members took their personal time to help us.
Thank you it's truly appreciated and I hope we soon get another mid year back on the road after 20 years.
Thanks
Rob.
From: Kingston, TN, Denham Springs, LA & Agoura Hills CA
Originally Posted by MasterDave
Do not bypass the ballast resistor, it will screw up the Pertronix unit. I know this to be true.
Well, I have had the III unit installed bypassing the resistor for at least 2 years here in So CA with no problems. Maybe the first two models had problems, never used those. And I do not use the ultra low resistance coil
Are you using a Pertronix coil? I have run Pertronix in my '70 Jaguar XKE for over 10 years. Early on, I blew two Pertronix units. I was using the "stock" Lucas coil. I spoke to a couple of other Jag owners who ran Pertronix as well, and they were all using Pertronix coils. None of them had a problem. I installed a new Pertronix unit, and switched to a Pertronix coil, and no more problems. Over 10 years, no failures to the unit or the coil. YMMV, but that's my experience. If I were doing a Pertronix, I'd definitely use a coil that Pertronix says is matched to your Ignitor II unit.
Claiming you have used a product in your car for 1 year or 2 or 10 years means very little . 1000 miles or 2000 miles or 10,000 is more relevant .
Most of these cars wouldn't run 1000 miles in 5 years .
Bill