Waking up a Texas M151A2

[rickf]

That is what the Prestolite modules do. That is why I tell people to steer away from them.

[Lou]

Check this photo out. All the black insulation/silicone melted away, and it was not even in a vehicle.

Please send me this module, I will pay the shipping. I am trying to reverse engineer why these fail and need one good one and one bad one to test. Obtaining one with the potting already gone will make this much easier!

[Lou]

Ok, today I'm going to replace the Prestolite solid state ignition module in my A2 with a Swiss module. For many of you this is an old rehash but for some of you, you might not have ever been inside your distributor at all. So here's a chance to have a look without doing the work. If you've seen it all before, there will likely be nothing new here. If you have not, read on -

Nice write up TJ. Still do not understand why you had to change the cap to get things working correctly. Was the rotor in the same position as the prestolite one? I would think the indexing would be the same with both modules, and rotors. It is possible that the old cap had a carbon track, and with the new module you had a hotter spark and the carbon track conducted and was shorting out 1 cylinder.

[m3a1]

I never did figure out exactly what the difference was. But with these changes I finally exorcised the gremlin that had been plaguing me from the very first day of ownership. I was more in a mood to celebrate than to engage in a forensic analysis.

Cheers,
TJ