Just changed timing chain now have half power again
2 things ...is the chain off a tooth...RETARTED... check the total timing
Check the timing one more time
I would run a compression test to rule out a bent valve.
Looking for a Used Countryman in your area?
CarGurus has 4,269 nationwide Countryman listings starting at $7,800.
Search MINI Countryman Questions
MINI Countryman Experts