Hi guys I’ve just recently had my rcz 1.6 into the dealer ship and had quite a few repairs done on it ie new rocker cove new coolant pump and new turbo pipe as I had two oil leaks and a coolant leak but since having all this repaired and being £1500 pound lighter their now telling me I need a new timing chain and my manifold/ valves are coked up and need de coking as anyone else had the same problems and can anyone help please