Dan 57
Well Known Member
Taildragger with a Lyco O-360-A3A with some 600h since ovhl:
Removing the lower spark plug on cylinder #4 (rear LH) during my 100h inspection, I found the plug full of engine oil and another ca 20 drops came out of the hole after removal...
Compressions are good (74/80 on #4), borescope viewing shows no abnormals, and the oil consumption is quite low with 1qt/50h.
Scraper ring gap on bottom of piston letting oil thru or anything else, any takers?
Thanks.
Removing the lower spark plug on cylinder #4 (rear LH) during my 100h inspection, I found the plug full of engine oil and another ca 20 drops came out of the hole after removal...
Compressions are good (74/80 on #4), borescope viewing shows no abnormals, and the oil consumption is quite low with 1qt/50h.
Scraper ring gap on bottom of piston letting oil thru or anything else, any takers?
Thanks.