I have thumbed through some pages here and I am unable to find what I am looking for. I have a 500 Superchief that starts throwing a fit after about 30 minutes of run time. It starts to loose power pretty bad. After it cools off out runs great for another 30. I would like to know if anyone has the test procedure/OHMS for the ignition coils and the 3 coils behind the flywheel. My suspicion is the condensers but I want to test the other coils too. If I need to replace the condensers, what would I need and where could I find them? Also the battery does not charge. Another reason I would like to test the coil behind the flywheel. A wiring diagram for the ignition system would be helpful. I know... I am asking a lot here lol but I do appreciate any help! Thank you in advance