Hi all,
I know what you're thinking - induction leak. This was the consensus in my previous thread about high CHTs (which I think I can get under control). The problem is that I cannot find any induction leaks. I replaced the carb (carefully checked all gaskets and mating surfaces along the way), installed the no leak kit from SDS. Then I tried pressurizing the intake manifold using a shop vac, and using a compression tester. Then my mechanic tried the compression tester method, then we tried spraying starter fluid around the engine - no leaks materialized.
At this point I don't know how to explain the data. Any ideas? I attached a picture of the test. The full flight is here: https://apps.savvyaviation.com/flights/4380720/d283a861-135f-4135-8e5a-9e8033dcbeec. It includes a lean test (the gami spread comes out to 0.5, which I think is ok for a carb) and an in-flight mag check (uneventful).
I know what you're thinking - induction leak. This was the consensus in my previous thread about high CHTs (which I think I can get under control). The problem is that I cannot find any induction leaks. I replaced the carb (carefully checked all gaskets and mating surfaces along the way), installed the no leak kit from SDS. Then I tried pressurizing the intake manifold using a shop vac, and using a compression tester. Then my mechanic tried the compression tester method, then we tried spraying starter fluid around the engine - no leaks materialized.
At this point I don't know how to explain the data. Any ideas? I attached a picture of the test. The full flight is here: https://apps.savvyaviation.com/flights/4380720/d283a861-135f-4135-8e5a-9e8033dcbeec. It includes a lean test (the gami spread comes out to 0.5, which I think is ok for a carb) and an in-flight mag check (uneventful).