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914World.com _ 914World Garage _ No Spark. 1974 1.8 L-Jet. Pertronix

Posted by: tach May 15 2015, 09:09 PM

1974 1.8 L-Jet. Pertronix 1847V. No spark when cranking over the engine. I do get one spark on a plug when I turn the key switch off and the rotor is in the correct position to spark that particular plug. What to check?

New cap and rotor.
Bosch blue coil.

Update. It looks like the pertonix sensor is to high on the distributor mounting plate.

Posted by: The Cabinetmaker May 16 2015, 04:58 AM

Your missing something in your distributor. Points and condenser.

Posted by: budk May 16 2015, 05:11 AM

QUOTE(The Cabinetmaker @ May 16 2015, 06:58 AM)

Your missing something in your distributor. Points and condenser.

You missed the part about having a Pertronix.

Posted by: The Cabinetmaker May 16 2015, 06:05 AM

Well, no. I did not, but you missed my attempt at humor! His pertronics is probably toast. He needs to install points and see if it runs.

Posted by: Old Yella May 16 2015, 01:04 PM

rotor maybe---or timing is just out

Posted by: rhodyguy May 16 2015, 01:29 PM

Does your timing light flash when you test each plug wire while cranking?

Posted by: sportlicherFahrer May 16 2015, 03:08 PM

Had the same issue a couple years ago. Every time it sporadically sparked it sounded like I was shooting ducks in my garage. Neighbors LOVED it! Failing module from what I could tell. Ended up putting the good ol' mechanical stuff back in and drove down the road fine after 5 minutes of reinstalling and setting timing.

Posted by: pilothyer May 16 2015, 03:15 PM

I have found one of the most important things you need when converting from mechanical points to a Pertronics............A SPARE PERTRONICS SET-UP.

Posted by: timothy_nd28 May 16 2015, 06:57 PM

QUOTE(pilothyer @ May 16 2015, 01:15 PM)

I have found one of the most important things you need when converting from mechanical points to a Pertronics............A SPARE PERTRONICS SET-UP.

Posted by: turk22 May 16 2015, 08:01 PM

Make sure the petronix magnet is seated correctly on the rotor. I had a similar problem shortly after original install, it was that the magnet was not fully seated correctly on the rotor.

Posted by: 76-914 May 17 2015, 08:21 AM

They have a trouble shooting guide on their website if you want to check the unit. I've had one set in for 5+ years w/o any problems.