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  1. Catching Neutral

    High Idle

    @middlecalf ….thank you
  2. Catching Neutral

    High Idle

    @OhioFJ ….that’s exactly what I had decided I should do however I wanted to give some time for others to weigh in.
  3. Catching Neutral

    High Idle

    @middlecalf …no need for me wasting anymore time? New intake manifold gasket ASAP ?
  4. Catching Neutral

    High Idle

    OK …..several weeks ago when I developed higher RPMs at idle this was potentially caused by a new vacuum leak. Spraying carb cleaner on said leak will increase RPMs further because your adding fuel?
  5. Catching Neutral

    High Idle

    Now I’m confused. I have not had time to investigate this further until tonight. Bought another can of carb cleaner. Fired up the 40 and let her warm up. Began checking everything with more carb cleaner. Seems to me there were times when I sprayed carb cleaner on certain areas that the idle...
  6. Catching Neutral

    High Idle

    Was able to get a bit of garage time today. Found a spot using carb cleaner somewhere under the intake manifold, radiator side. Vacuum gauge went up 1 to 1.5 cm Hg and RPMs dropped. Definitely a leak there. Buttoned everything back up. Adjusted carb, still Idling about 900-950ms with a...
  7. Catching Neutral

    High Idle

    Ok..hope to have some time weekend of 12/11, 12/12 to get some garage time. Anything else I can do to be 100% sure there is no Intake manifold leak before I pull the carb to inspect ?
  8. Catching Neutral

    High Idle

    @ToyotaMatt ….will this crack cause a high idle?
  9. Catching Neutral

    High Idle

    @OhioFJ …I’ll report back when I’m able to get back under the hood.
  10. Catching Neutral

    High Idle

    @cbmontgo I started from scratch adjusting the carb….got summoned to the table for Thanksgiving dinner right in the middle. Now I have to watch the Egg Bowl. Good luck to your Rebels. Busy tomorrow so I hope to get back into it Saturday morning.
  11. Catching Neutral

    High Idle

    Running..
  12. Catching Neutral

    High Idle

    Air cleaner housing off. I have sprayed almost an entire can of carb cleaner around the entire intake manifold, base of carb and carb itself. I am getting nothing. No decrease in RPM anywhere. I have checked the choke linkage 4 times. Unless I am missing something ( which is entirely...
  13. Catching Neutral

    High Idle

    @OhioFJ ….thank you for sharing that…I think I have to consider anything until I am able to break into it and get some more precise info
  14. Catching Neutral

    High Idle

    @bhsdriller Its running great.…cant really notice any difference there. Still pulling 15-16 on the vacuum gauge which is right where it was after my last valves/ carb/ timing adjustment.
  15. Catching Neutral

    High Idle

    @cbmontgo …linkage is good. Timing gun showed 1400 RPMs. Carb cleaner under the carb heat shield yielded an drop in RPM. Now to find time to get the air cleaner off for a closer look. Looking like it could be an intake manifold leak. This engine was rebuilt/refreshed about 12 years/30000...
  16. Catching Neutral

    High Idle

    My 40 started idleing high yesterday. This was after a cold start. Pushed the choke in and it didn’t return to the normal 750-800rpms. I haven’t been able to put the timing gun on it to see how high the RPMs are. I’m guessing 1250ish. I checked the choke mechanism to make sure it wasn’t...
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