Beautiful plane and engine.........next time.........as you are lifting the cylinder off of the piston , put a rag around the connecting rod under the piston , and tuck it into the crankcase............you never know if a piston ring or oil ring has shattered and as you lift the piston out of the barrel ,, a chunk of broken piston ring falls out and into the crankcase it goes..........fortunately there was no broken ring sections in that cylinder , but you never know the next time...........on the bottom cylinders there would not be such a risk , but on the top ones gravity will pull broken pieces into the crankcase..........when it happens , you will say the F word many times ...........placing a rag in the right spot only takes a minute , and you will love yourself for doing it when three pieces of ring fall into the catch rag and not into the crankcase..........you dodged a bullet that time , but maybe it might happen next time , and it will wreck your day..........love your plane and engine and enjoyed the video.........thanks
Thanks for posting the video, got to see the performance in El Paso, TX last year. Watching you put that aircraft through the routine you fly is still astounding!
Great hands on video,the cylinder fitting shows the juggling act it requires and Kyle made it look easy when really it is not ! thanks for sharing sir.
Sorry to be off topic but does someone know a method to log back into an Instagram account?? I was stupid forgot the password. I appreciate any help you can give me.
@Rayan Braydon I really appreciate your reply. I got to the site on google and Im in the hacking process now. Looks like it's gonna take a while so I will reply here later when my account password hopefully is recovered.
That doesn't work very well. You push on the cylinder and the linkrod moves to the side putting the piston in a bind inside the cylinder. Then your only recourse is to pull the cylinder off and reset the ring compressor again.
The reason the piston head came off is because the cyclic loading on the alminium caused fatigue and failure. Expect similar issues on the other cylinders soon.
It was interesting that the failure happened about where the "head" would normally be attached to the cylinder. The head would be the first part of the barrel to heat up during warm up and transfers the most heat to the air during operation, because ignition happens near TDC, and hot gases flow out the top of the head. Thermal expansion of the head may have added to the cyclic loading on the barrel. I wonder if at overhaul they replace the barrels or just recondition. The only real way to know is to examine a large number of engines and their histories. Most likely it was a casting flaw or this problem would have been dealt with previously!
I just saw this and would like to know if you would sell that Lincoln in the garage there? Lucky that's all that went on the engine and you got down safely. Still a B/P raising moment. Cool aircraft too.
That's what I noticed, when he installs the complete replacement cylinder with the housings and the sticks still in place, he has no idea what kind of clearance or negative clearance he is going to have. He could torque it down, put palnuts on all the studs only to find he he hasn't any valve clearance. At this point He may not be able to shorten the sticks because there too long to remove them from the cylinder. All the clearance adjustments are made with the sticks that were inside of the housings. I watched a couple of these cylinder replacements on a 985 and the last person did it just like he did. As if a cylinder replacement isn't also going to require valve clearance adjustments which will likely involve the removal or replacement of a spacer of a different thickness. The valve seats are not going to be the same between the two cylinders and for all he knows one or both of the sticks could be bent. Maybe it's all staged.
mmmm, those things that holds the attachment of the cylinder to the power section are named nuts...not bolts...one more thing and please don't hate me but leaving the aircraft unattended with no brake rider and the engine running going through the front for leak checks is a way to have yourself kill and put other humans at risk, please that aircraft is to show skills, have a good flight...
