Green SBC400 Posted August 14, 2021 Share Posted August 14, 2021 What's this wire and white thing? Is it the ground for the distributer body? The story: Points left me stranded, so I decided to convert over to FAST XR-I module and PS20 coil and I messed it up. I followed the directions everything worked for about 3 short drives. Anyways I'm taking things apart trying to trouble shoot it. What is this black wire that goes into this resistor/canister white looking thing? Is that a ground? Looks like it to me. I took the wires off the original coil and placed them back where they were found, I think when I did the conversion. I'm thinking this ground should be placed on the coil negative side with the control module negative, or it's a ground for the distributer body? I had it hooked on the positive side of the coil, which would have grounded everything if that is indeed a ground. So it running was probably a miracle and it'll be a miracle if I didn't burn anything up. I'm handy with tools, but I don't have a book on just the Monte. I've got 3 repair manuals for 70 to 76. A Chilton's, a Motor, and a Big book of repairs. All have general ideas but I'm more of a specifics minded person. I've got projects lined up for the Monte before I try to daily drive it. Anyways I need it back in running shape. And I'm half tempted to put points back in, I need a 1970 book on this car. It's all original except for this FAST XR-I thing. I'm thinking I didn't pay close enough attention to taking the original setup apart and I got lost with the little wires. I payed so much attention to the spark plug wires and distributer positioning and not enough with the little ones. To convert back to points: So it looks like a have a 6V resistor wire and a 12V start wire that goes on the positive side of the coil. The negative side goes to the points. Then there's that wire with the white thing. Where's that go in the points setup? My before pictures it looks like it's on the positive side of the coil. I'm so lost. Thanks for any help. Quote Link to comment Share on other sites More sharing options...
Green SBC400 Posted August 14, 2021 Author Share Posted August 14, 2021 I found my answer.... It's a capacitor and belongs on the positive side of the coil: Posted November 17, 2019 Do you have a coil capacitor on your coil bracket? That wire would go to the + side along with the resistance wire from the harness(probably crimped to a yellow wire). Quote Link to comment Share on other sites More sharing options...
Green SBC400 Posted August 14, 2021 Author Share Posted August 14, 2021 Here's what I installed, I'm attaching the FAST XR-I instructions. Perhaps I just need to re-adjust the module. Move it as close as possible to the distributer shaft. I don't recall adjusting it at all. I'll adjust the module then figure out how to check the timing. The rotor and cap worked with the points, so I didn't change them. Maybe I should change them? The rubbing block on the points was worn off which is why the Monte left me stranded a few miles from the house. Anyways I'll hopefully get to mess with this tomorrow. 2881710.pdf Quote Link to comment Share on other sites More sharing options...
Green SBC400 Posted August 15, 2021 Author Share Posted August 15, 2021 So I put in the old coil and it ran for just a bit. Not smooth at all so it really didn't run. I'm going to get a test light, I don't think the coil is firing all the time, which means that module is already toast. Seems about right, a couple good drives and then just moved it out of the garage and then nothing. Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted August 15, 2021 Share Posted August 15, 2021 I used Pertoenix on mine, I know you need 12 Volts at the coil the original has a resistor wire to the coil that has to be changed to get 12 volts to coil when key is on. I used a different source for the 12 volts so I didn't have to change that wire. Been working fine for several years now. 1 Quote Link to comment Share on other sites More sharing options...
Green SBC400 Posted August 15, 2021 Author Share Posted August 15, 2021 56 minutes ago, cny first gen 71 said: I used Pertoenix on mine, I know you need 12 Volts at the coil the original has a resistor wire to the coil that has to be changed to get 12 volts to coil when key is on. I used a different source for the 12 volts so I didn't have to change that wire. Been working fine for several years now. I looked up a few and thought the FAST would be fine. It didn't require changing anything. I'm going to get a test light and test the module. Then if it fails the simple test I'll contact FAST support and get a new module hopefully. Testing out that 1 year warranty already. If a second FAST fails I'll try the pertronix ignition. Unfortunately digital stuff will sometimes smoke for no reason other than poor quality control. Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted August 16, 2021 Share Posted August 16, 2021 They may also have a tech line too, may want to try that. Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted August 16, 2021 Share Posted August 16, 2021 I have Petronix on mine too, easy to convert and keep the original look. Quote Link to comment Share on other sites More sharing options...
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