Well, I had some bad luck with the Lycoming IO-360 I bought (used). When I first started working on it I took the paint off of the case and near the #2 cylinder there was something gray that did not want to come off of the case…now looking back it was probably JB weld disguising a crack. That is also probably why it had a fresh coat of Lycoming gray covering everything!
So, from my first flight on I was chasing an oil leak…at about 15 hours I found the crack coming off the #2 cylinder going down about an inch and then back about 5”. A buddy and I figured that we should experiment and try welding the case from the outside and monitor it closely. It worked for a couple of hours, but then the oil started leaking again, and a crack appeared right in the middle of the weld!
Now the only option was to tear apart the engine and get a new case. I did exactly that. I used DIVCO in Tulsa, OK to send me an overhauled case, and they did a fantastic job!
At this point I have the case together and the cylinders on it. I should have it back together this next week, and I will hang it back on the plane.
It was costly and it was time consuming, but it beats a cylinder separating from the case as I’m flying over mountainous terrain!
The Super Bee will be buzzing again soon!
EAA Chapter 808 VP