martin , [please ring me, it isnt worth breaking it.. tbh , if all youve had so far is a dislodge fuel pump seal , and a a loose tensioner bolt, well then that is minor . to be able to bolt on a extra 100hp , and have nothign go wrong first turn of the key is good . tappetts aint mega money , and just becuase they are noisey ,it doesnt stop it being used . chain noise , well lets see what it is .. you would have noticed , broken parts when u had it apart .. seriously give me a ring and we will see what we can sort