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Thanks for the update. Now I can finally get some sleep!😳

Hi Copperline, Is this problem solved? I haven’t seen an update for a while.

When someone buys one of these coils, please post a review. I would like to see if it solves Copperline's mystery problem (weak spark)...

History in Motion magazine is the MVPA publication.

Based on your trouble shooting so far, it seems to have a weak spark. If we all agree to that, let’s check a couple of things. Use a volt meter to measure the supply voltage on the coil. Assuming fully charged batteries, it should be 28 volts. There is a screw in plug on the top of the...

Wow! This is frustrating me and it isn’t my truck! I’m concerned about fuel in the crankcase. Cranking an engine a lot without it starting can load fuel in the intake manifold. I saw this once on a friends M38. His manifold has a plug on top. We removed the plug and looked inside. The manifold...

This is a different capacitor. The capacitor that prevents arcing on the points is usually called the condenser. It is in fact an electrolytic capacitor. The "filter" capacitor I bypass is located in the bottom of the distributor under the coil cavity. It is what the 24 volt ignition wire...

I use a GMRS two way radio in my M37 for convoys. I haven't had any noise issues with this mod. You could bypass the capacitor you have and if it causes interference with your two way, then you could buy a replacement. I'm not trying to sell you on the idea, I just know it helped me a long time...

Did you remove the filter capacitor I wrote about in post #43? If my description was confusing, PM me and we can talk live on the phone. One of these days I am going to take a few pictures of this simple mod so it will be clearer. BTW, I gave up on using the Chinese coils. I built a mod that...

This sounds familiar to me. There is a filter capacitor located at the bottom of the distributor housing. It is where the 24 volt ignition wire is connected to the distributor. There is a small square plate with four screws that hold what looks like a connector. It is actually the filter...