No spark to plugs

[82sbshortbed]

I have power to distributor but no spark at plugs. What's the first thing to check? Assuming it's not needing a new distributor. Maybe replace something in the distributor instead of replace the whole thing.

 

[Turbo4whl]

First thing to check, the cap and rotor. The rotor can burn through, look at the carbon contact under the coil too. It should poke down through the cap.

 

[Ricko1966]

https://www.gmsquarebody.com/threads/hei-ignition-problem.35725/#post-732669

Post# 6

 

[82sbshortbed]

Thank you I'll do these tests.

 

[Matt69olds]

Read this:

https://www.gmcmi.com/wp-content/uploads/2014/05/HEI-Testing.pdf