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  1. Dutchskylark

    Stuck exhaust valve GO-300 C175

    I had been talking to my Belgium technician (Eng overhaul shop) Acc to his opinion is that the reason for this problem is heat! Important is to let the Eng cool down slowly after landing (idle power for 3 min at least) before Eng shut down. The subject of mixing fuel is a good option too. If...
  2. Dutchskylark

    Stuck exhaust valve GO-300 C175

    AVGAS has 100 AKI at lean power and 130 at rich power
  3. Dutchskylark

    Stuck exhaust valve GO-300 C175

    Thank you for your repl, We have the original Engine Manuel in the Hangar and used it to check for the clearances so no problems in this. Also we followed the Lycoming 1425 procedure as that is almost the same for the Continental Engine. AVGAS 100 LL: In Europe (Netherlands) the ratio of lead...
  4. Dutchskylark

    Stuck exhaust valve GO-300 C175

    The GO-300 Engine has a higher RPM (max 3200). Can that be an issue in combination with the single grade oil en mogas? Is it better to mix AVGAS with Mogas to bring down the lead ratio?
  5. Dutchskylark

    Stuck exhaust valve GO-300 C175

    Are you saying that we have to ream the guide to a higher width? Off course within the manufacturer limits
  6. Dutchskylark

    Stuck exhaust valve GO-300 C175

    Good day everyone, I’m in the possession of a 1962 C175C with a GO-300 Continental Engine. Unfortunately we suffered several stuck exhaust valves from different cylinders on the Engine. During servicing of the valve and its Guide we found a lot of black glassy residue in the Guide which made...
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