18-01-2016, 11:29 AM
thats a tap not a knock, whether its a tappet or a valve is hard to say but it is quite a hard tap, has it had a proper rev around the block up to teml or just on idle?
pop a cam cover off and have a prod at the tappets with a plastic or wooden implement
pop a cam cover off and have a prod at the tappets with a plastic or wooden implement
need a part number? http://public.servicebox.peugeot.com/ and http://service.citroen.com/ will sort you out.