MSD 8529 to Factory Harness Wiring

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Old Aug 5, 2019 | 07:48 PM
  #1  
Boilerz25's Avatar
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MSD 8529 to Factory Harness Wiring

I am putting my car (1969 442 with Rally Pac) back together and have installed an MSD 8529 Ready-to-run Distributor in-place of the factory distributor. I am using new factory harnesses and am struggling to find out how to get the wiring correct from the harness to the coil and starter solenoid with this setup. The engine last ran on the bench dyno and was hot wired to start. I have the coil wired correctly as shown in the MSD instructions but need some help to figure out if I need to also run the wires from the harness and the where exactly. Attached is the schematic from MSD as well as the image of the coil. Appreciate the feedback in advance.




Screenshot of the Service Manual Diagram
Old Aug 5, 2019 | 08:05 PM
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Boilerz25's Avatar
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Additional images of wires from the factory Engine Harness

Solenoid?

Coil?

Transmission?

Wiper Motor?
Old Aug 5, 2019 | 09:47 PM
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The purple and yellow wires go to the solenoid S and R terminals. The 2 wires, black and yellow that are crimped together go to the coil positive terminal. The brown wire is for the tach and goes to the gray tach signal wire from the distributor. Not 100% sure but the singular wire with the black boot goes to the transmission connector for passing gear if you have T400. The question I have is does the new harness still have the resistance wire? If it does, that needs to be removed and replaced with a 12ga wire back to the bulk head connector, or capped and you need to run a new 12ga wire from the IGN terminal in the fuse block to the coil+ terminal, your choice.
Old Aug 6, 2019 | 07:20 AM
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Boilerz25's Avatar
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Thanks Eric! Big help. I will try and get all these connected and let you know how it goes.

Sean
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