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Yesterday's Tractor Forums
  1. J

    F12 starting issues

    Watching valves, it's compression. Intake valve closes and then piston comes up with both valves closed. I've pumped oil into cylinder a couple times since it sat. Was worried rings had seized. Think I'll put compression tester on it, but it will blow thumb off spark plug hole and sucking...
  2. J

    F12 starting issues

    Appreciate all the ideas. Moved the coupling one hole and now impulse snaps right at TDC. Getting good spark, have good compression and have set valve clearances to 0.013. Added about 1 tsp gas to each cylinder like 560Dennis said and .....nothing. Pulled plugs, checked spark and tried...
  3. J

    F12 starting issues

    Sorry Fritz, didn't see your reply initially. You say I need to advance one hole at at time. Is advancing impulse same direction as distributor rotor?
  4. J

    F12 starting issues

    So the impulse needs to trip right at TDC? Seems like I may need to retard it a little so impulse trips a little earlier.
  5. J

    F12 starting issues

    Still working on 37 f12 and can't get it to start. Getting good spark and have reset ignition timing several times but wonder if I'm still off. Currently, when #1 cylinder is at TDC based on flywheel mark (DC 1-4), the distributor rotor is contacting #1 and points are opening when nearly...
  6. J

    Farmall F4 magneto issue

    All I have is what's left on the pin and o e broken shoe. I do have the drums and covers but no shoes.
  7. J

    Farmall F4 magneto issue

    You called it martinautry. Timing was off when I replaced coil. Firing well now. Thanks to all for help. Does anybody know someone interested in selling brake shoes that fit an f12?
  8. J

    Farmall F4 magneto issue

    I've been setting advance about halfway so don't think it's grounding. I'll check primary wire. Could magnet still be weak?
  9. J

    Farmall F4 magneto issue

    I have a 36 f12 with f4 magneto. Sat for years and I was getting no spark. Installed new coil, points, and condenser and placed magnet on neodymium magnets to charge as described in 2022 gas engine article. Still no spark when on tractor. Impulse appears to function properly. If I take off...
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