Now I have the black wing off and the exhaust and moulded my new lights in i decided it was time to fix the oil leak on the engine, all that needed doing was the heads taking off and new seals put around the push rod tubes, on the previous seals not gasket sealant was used so i suspect this is why it leaked. While i was taking the heads off i decided to strip the engine down to the case, I decoked the pistons and valves and sprayed the engine. Cleaned the tinware up aswell.