A young owner of a 172 approached me to day for my opinion on a problem he has with his Aircraft and CFI. He had bought the 172 to learn to fly and family transportation. The engine was a 0 since major (not by me) and the owner was given specific instruction for break in for the 6 brand new superior cylinders, by the engine overhaul company a Certified repair station with a good reputation. The CFI ignored these instructions, and now 52 hours since major the cylinders are toast, compression is down to 20/80 and burning 1 qt in 3 hours, (no leaks) The CFI admitted he was told how the company wanted the engine to be run for the first 50 hours. and he admitted he did not run it that way. Now the question. How much responsibility does the CFI have in reimbursement to the owner for damages?