duragg Posted October 14, 2010 Author Share Posted October 14, 2010 Coil Primary Winding: Plus pole to Negative Pole is about 1.6ohms Secondary winding is 10,500ohms (10.5k). Maybe the XR700 is toast. Quote Link to comment Share on other sites More sharing options...
wagon jon Posted October 14, 2010 Share Posted October 14, 2010 The black wire with the white stripe is the 12 volt positive that goes to the coil positive side. It should be switched on when the key is turned to the on position. The negative goes to the distributor. Try placing the stock coil back in and hook the wires up the way the factory had it to see if the problem persists. Quote Link to comment Share on other sites More sharing options...
duragg Posted October 14, 2010 Author Share Posted October 14, 2010 I only have the one coil. Owned the car for 4 years and it always had a Crane XR700 with optical pickup and coil marked (USE EXTERNAL RESISTOR). Then I gave the car to my brother and he said it developed a "NO SPARK" condition, sat for a year and packrats destroyed the wiring. So I took the car back, rewired it and still have NO SPARK condition. +12 Volts from a toggle switch on the panel goes directly to the Coil +. I didn't put in a "Ballast Resistor" should I have?? ooops. When I hook up +12 to the coil everything is ok and I read +12.8 volts at the + terminal When I add the crane module wiring per the diagram the coil gets F-ing HOT and I read 10 volts on the + terminal. I wonder if the Crane XR700 module is toast, or the optical pickup is F'd and there is a continuous ground to the - Terminal of the coil. That would make the coil F-ing HOT, yah? Old cars rule! Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted October 14, 2010 Share Posted October 14, 2010 (edited) Hey, another question. I am deleting the heater core altogether. Do I just cap off the old lines? Or do I need to run them together? Tj Cap the lines at the block. Connecting them together creates a short in the cooling system which could result in long warmup times and hot spots in the head. If the coil says to use an external resistor you need to use one. Coils that don't require it run 12v, the ones with ballast resistors are around 6-8v I believe. Edited October 14, 2010 by mario_82_ZXT Quote Link to comment Share on other sites More sharing options...
duragg Posted November 7, 2010 Author Share Posted November 7, 2010 Update time. * New ignition fixed the no-spark. Now have a full voltage XR3000 running. * New Clutch Master cylinder fixed that issue. * New Brake Master Cylinder in process. * Rewire is mostly done. * New internallly regulated alternator mounted and good at 13.8v * Ordered an entire Equus gauge package which should be here next week. Seats and harness are next. I am struggling wanting to spend $1k on a full seating / harness package. CL to the rescue? Quote Link to comment Share on other sites More sharing options...
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