Hi All-
Starting my condition inspection early this year, and since my buddy bought a new borescope we decided to take a look at my jugs
IO-390 with 250 hours (about 100 a year), but it was long term pickled for a little over 12 years before first start. We'll get better pics and I'll share, but Cylinders 3 and 4 show a little pitting. Compressions were great at my last condition inspection (78+ on all) and oil analysis looks good too over the last three reports with numbers all within or below Blackstone's averages. I use a qt every ~15 hours
Any thoughts/advice? I could pull and see if they'd clean up with a bore/hone or run and monitor given compressions, oil analysis and usage.
Cyl 3 pitting
Starting my condition inspection early this year, and since my buddy bought a new borescope we decided to take a look at my jugs
IO-390 with 250 hours (about 100 a year), but it was long term pickled for a little over 12 years before first start. We'll get better pics and I'll share, but Cylinders 3 and 4 show a little pitting. Compressions were great at my last condition inspection (78+ on all) and oil analysis looks good too over the last three reports with numbers all within or below Blackstone's averages. I use a qt every ~15 hours
Any thoughts/advice? I could pull and see if they'd clean up with a bore/hone or run and monitor given compressions, oil analysis and usage.
Cyl 3 pitting