1973 Mach 1 electrical/startup issues
09-02-2017, 12:35 AM
#1
Thread Starter
Join Date: Sep 2017
Location: IL
Posts: 1
1973 Mach 1 electrical/startup issues
I'm new to this forum and was hoping you guys could help steer this build in the right direction for me. I'm pretty much a novice at this stuff
So ive got a 1973 Mach 1 with a 351c and an MSD 6al ignition box, pro-billet distributor and blaster 2 coil. I inherited the car from my dad and have been trying to get it running for over a year now. due to some wiring complications the old harness had to be taken out and replaced.
ive been working on this rewire for quite some time and finished this past week. before I tried to turn it over I checked to make sure I had spark, fuel and good compression. after that was all confirmed we tried to turn it over with a bit of starter fluid and it cranked but didnt fire. We made sure all the grounds were solid and checked the other connections.
Where i was previously getting a constant 12v to the "S" terminal on the starter relay with the key in the ON position, but I'm not getting anything now. Also, with the MSD ignition box there aren't any connectors going to the "I" post on the relay because the ignition wire is now spliced to the small red on the msd box. I also noticed that I'm only getting power to 2 of the fuses on the block, where I used to get 12v on all of them. Oddly enough the car still cranks.
Any help would be greatly appreciated. I wont be able to get under the hood again until Wednesday but i was hoping you guys could help me troubleshoot it until then.
So ive got a 1973 Mach 1 with a 351c and an MSD 6al ignition box, pro-billet distributor and blaster 2 coil. I inherited the car from my dad and have been trying to get it running for over a year now. due to some wiring complications the old harness had to be taken out and replaced.
ive been working on this rewire for quite some time and finished this past week. before I tried to turn it over I checked to make sure I had spark, fuel and good compression. after that was all confirmed we tried to turn it over with a bit of starter fluid and it cranked but didnt fire. We made sure all the grounds were solid and checked the other connections.
Where i was previously getting a constant 12v to the "S" terminal on the starter relay with the key in the ON position, but I'm not getting anything now. Also, with the MSD ignition box there aren't any connectors going to the "I" post on the relay because the ignition wire is now spliced to the small red on the msd box. I also noticed that I'm only getting power to 2 of the fuses on the block, where I used to get 12v on all of them. Oddly enough the car still cranks.
Any help would be greatly appreciated. I wont be able to get under the hood again until Wednesday but i was hoping you guys could help me troubleshoot it until then.
