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ignition coils

Posted: Wed May 20, 2020 5:49 pm
by antlrking
I'm not sure. I have a 1979 trojan express 30. Chrysler LM318's What are the correct coils for these engines? Do automotive coils work? Ballast resistors and or spark plugs? What are the correct ones? I am having so much trouble with these engines losing power after warmed up to temp. I'm pulling my hair out.... Thanks, Antlrking...

Re: ignition coils

Posted: Wed May 20, 2020 5:58 pm
by antlrking
also both engines are rebuilt. 166 hours. they used to run good. now not so much. no power. stalls a lot. I put 2 new carbs on. new plugs. ect… running out of things to do.

Re: ignition coils

Posted: Wed May 20, 2020 6:22 pm
by mowens
Check timing?

Re: ignition coils

Posted: Wed May 20, 2020 8:54 pm
by P-Dogg
My crusader 270s did not like weak distributor springs.

Re: ignition coils

Posted: Thu May 21, 2020 6:41 am
by antlrking
one guy did tell me to pull those distributors and replace with HEI distributors. He said they will work better. He said then I could eliminate all of the electronic ignition stuff. Any thoughts on this remod?

Re: ignition coils

Posted: Sun May 24, 2020 9:01 am
by P-Dogg
No downside. I have one old style and one electronic. Electronic one always starts sooner than the other.

Re: ignition coils

Posted: Mon May 25, 2020 8:51 am
by mowens
What carbs? I know the edelbrock carbs need a higher shim. And if the shim is to great the bowl won't fill properly, to short it floods.

New carbs or rebuilt?
Check vacuum?
Check spark on each plug? Drop test

Stalling after warm sounds like fuel issue. Maybe check tuning on carbs as well.

Check compression?

An old coil heating up could cause that "but" since it is both I'm inclined to think not. Typically you wouldn't see the same failure at the same time in both.

Re: ignition coils

Posted: Mon May 25, 2020 10:48 am
by prowlersfish
Are the both losing power at the same time ?

Re: ignition coils

Posted: Mon May 25, 2020 4:02 pm
by AwayOnBusine$$
one guy did tell me to pull those distributors and replace with HEI distributors. He said they will work better. He said then I could eliminate all of the electronic ignition stuff. Any thoughts on this remod?
No downside. I have one old style and one electronic. Electronic one always starts sooner than the other.
What brand to you recommend. Checking prices I have come up with a range of about $83 to $350 no wires.

Re: ignition coils

Posted: Tue Jun 09, 2020 5:44 pm
by hammerhead
i just installed new pertronix distributors and blaster coils. bypass all the chrysler ignition junk. runs so much better