Flying again!
Well Known Member
I had oil leaking from the pushrod shrouds on cylinders 3 & 5 on my O-540. I replaced them and no leaks for about 6 hours.
I have oil leaking from the o-ring seal at the head side of the cylinders, all 4 that I replaced. I made sure the area the seal fits in was clean with no grunge that could cause a bad seal.
I am wondering if it is a weak push rod tube seal spring. I thought I saw mention of a Lycoming SB that recommended using 2 springs to ensure sufficient compression.
Any thoughts or suggestions are welcome!
I have oil leaking from the o-ring seal at the head side of the cylinders, all 4 that I replaced. I made sure the area the seal fits in was clean with no grunge that could cause a bad seal.
I am wondering if it is a weak push rod tube seal spring. I thought I saw mention of a Lycoming SB that recommended using 2 springs to ensure sufficient compression.
Any thoughts or suggestions are welcome!