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  1. Ed Martin

    Light Bulb for Sun Super Tach

    Has anyone ever replaced the light bulb in an original Sun Super Tach? How do you get it apart to get at the bulb? Thanks for any input.
  2. Ed Martin

    Alternator Draining Battery?

    Something is causing my battery (new in December 2019) to slowly lose voltage when sitting for a week at a time without being driven. This has happened three times (not every time) in the last 2-3 months. When I go to start it, I find the voltage has dropped to 12.0V. The only thing I know...
  3. Ed Martin

    Alternator for 68 Roadrunner?

    I haven't shopped for an alternator for my 68 roadrunner in about 30-40 years. Where can I get a good quality new stock-type direct replacement which my manual calls for a 44-51 Amp size. I don't have a high electrical load. Using a P3690732 regulator with electronic ignition. What's the...
  4. Ed Martin

    Coil Voltage Needed?

    My 68 Roadrunner will not fire up at all for 8 months (but cranks good). In that time I replaced the carburetor, coil, battery, cap, rotor, ignition switch, plugs, ballast resistor and ECU module and checked ECU ground. Now I think it's a voltage problem so have done lots of voltage and...
  5. Ed Martin

    68 RR Ignition Switch

    I think I will have to replace my ignition switch to see if I can get more than 9.4 volts at the + coil while cranking (key in start). Other posts indicate the switch could be the problem. I have already replaced the coil, resistor and ECU. Battery is at about 12.4 volts. I'm sure the...
  6. Ed Martin

    Spark but no Fire

    Please help. This is related to my post on October 1, 2019. This is still driving me crazy! Summary: replaced carb, coil, cap, rotor, ECU, plugs, 2-pin ballast resistor, checked reluctor gap at 0.010-0.012". Now can get spark at coil and end of one plug wire (just checked one), but it only...
  7. Ed Martin

    Can Wet Plugs Fire?

    My 68 383 RR cranks but does not fire. I replaced the coil, cap, rotor, ECU and verified a good spark at coil and at one cylinder. Tried to start it several times during replacement of the above parts (a week or two apart each try) over a period of several weeks. At first I thought it was a...
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