My car wouldnt go today. The machanic came from the garage and said my timebelt had snapped and it needed a new engine. My cougar is mark 2 and is a w.5 v6 engine. I thought this car had a timing chain that is supossed to last a lifetime. Anyway i phoned him up and told him this so he said yes it had 2 chains hes confusing me so just wanted to know if anyone could help or givd me somd advise please.