Distributor and Rotor issue?

[Harmon]

1986 chevrolet c/10

I have had an issue with the truck not starting occasionally. It will turn over and the starter will work but it acts as if there's no spark.  A couple of years ago I replaced the entire distributor , all the parts , cap and rotor. 

Not much longer after that it did the same thing , so I took off the distributor cap and rotor and clea n them. If I do that almost every single time the truck will start. Has anyone had an issue with this? I finally bought a lifetime warranty this  cap and rotor because of this issue but it makes me very weary of driving the truck as I do not want to be stranded.  I do keep a back up rotor in my truck just in case though.

 Any ideas of my issue or similar problems would be greatly appreciated thank you.

[Burkhalter]

How do the wires look going into the distributor? Have you double checked your timing? Have you tested the coil both cold and warm? A while ago I had a problem with my coil not working when it was warm.

[Harmon]

My timing is off so when it runs again I'm going to adjust it.  Would timing cause no spark symptom?

[Burkhalter]

You would still have spark. You just wouldn't be getting spark at the right time.

[VileZambonie]

Check the pick up coil and ignition module