I'm currently looking at getting a cooper s r56 however it has no compression in piston 4 due to piston ring failure and not piston is slapping.
however the owner was told over sizes pistons can't be brought if block is rebored however you have to sleeve the block to fit original size pistons.
anyone rebuilt there r56 engine after piston ring failure and have details on parts they brought and changed ?


thanks brad

 

Do not take my experience into consideration; however, take Consumer Reports, which coincides with my experience:



Consumer Reports

Cars you’d be foolish to buy

Reliability, satisfaction, and test scores knock out these contenders

Published: April 01, 2015 10:15 AM
Worst used car: Mini Cooper S
When it comes to choosing a used car, you can put the odds on your side by choosing a model that performed well when new and has a great reliability track record. Of course, reliability hiccups can happen with any used car, but the Mini Cooper S has the worst history among all cars we have tracked over the past decade. Sure, the car is cute and delightfully entertaining, but year after year, the likelihood of having a problem that requires a repair is heartbreaking. And among the 17 trouble spots we track, engine major, engine minor, engine cooling, fuel system, body integrity, and body hardware have issues at an alarming rate. Although Consumer Reports often recommends skipping an extended warranty, the Mini Cooper S is a case where the investment would be a good hedge against potential problems.