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Mod | | | Forums66 Topics128,090 Posts1,056,015 Members48,430 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jun 2018 Posts: 32 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2018 Posts: 32 | Ive got a 1947 GMC 300 with the 248 in it.
I have replaced the coil, condenser, points, rotor, cap and plugs and wires in preparation to try and get spark. The truck has been sitting for over 50 years so i knew i was going to need to replace everything anyway. I "hot wired" the ignition to the coil so i could control it from under the hood. I dont think i have everything hooked up right because im still not getting spark. it could be that the stock wiring harness has a short or break in it somehwere. I can trace all that if i need to.
I just wanted to know what HAS to be connected (ignition wise) in order for me to get spark. Can i bypass the ammeter and Generator leads that go to the voltage regulator? Im pretty sure all I have to do is connect the ignition wire to the coil right? it been a while since I have messed with an older system.
Thanks in advance!
Logan
2010 Silverado 2500HD
1947 GMC 300
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