briantucker
Member
I have an IO-360-A1B6 consuming about 1 quart every 2 hours. I just had it scoped and the mechanic said the cylinders look fine and the compressions are all great. I just changed the oil 2 hours ago and it's already very dark which tells me we're likely getting blow by. My spark plugs (also cleaned 2 hours ago) are also black and sooty. The belly is pretty clean and I'm not seeing any leaks anywhere. I never fill to more than 6 quarts and it's consumed this much since I bought the plane about 100 hours ago.
From looking at other threads it sounds like we may have rings which lost their temper, but I'm not sure how we'd diagnose which of the cylinders are having that issue.
Any ideas for further diagnosis?
From looking at other threads it sounds like we may have rings which lost their temper, but I'm not sure how we'd diagnose which of the cylinders are having that issue.
Any ideas for further diagnosis?