Ah as long as they do it and do it propaly i dont mind, they are quite a good garage have always been going there for the jobs i cannot do myself, they rekon it takes about 6 hours 30 minutes for a cambelt change on a 172 ph2, this sound about right? considering there are litrally no other 172s in my area, havent seen any so im guessing they havent done many but they have done them. (he said)