Way too many cylinder wind up getting pulled due to low compression, says Mike Busch A&P/IA. Many of them can be rescued without resorting to cylinder removal. Mike illustrates this by telling the story of a frustrated Piper Seneca owner who had already replaced seven cylinders and was now being told by his mechanic that two more needed to be replaced. With the help of Mike's team, both cylinders were rescued without removalone by lapping the valve in place and the other by doing a solvent ring flush. Mike feels that cylinder removal should be the last resort after these lessinvasive methods have been tried. Savvy Aviation offers Professional Maintenance Services to owners of General Aviation aircraft, such as: SavvyMx (Professional Maintenance Management), SavvyQA (Expert Consulting), SavvyPrebuy, SavvyAnalysis (Engine Data Analysis) and Breakdown Assistance. Savvy also publishes a monthly newsletter with lots of interesting information for the general aviation enthusiast; subscribe to it at https://www.savvyaviation.com or text the word "Savvy" to 33777. This webinar was hosted by the Experimental Aircraft Association (EAA).