My car has developed a distinct ticking coming from the engine when hot. The tappets only make a noise for a second or so when cold and it is too slow in frequency to be the injectors, and I think too loud as well. Anyone got any ideas as to what it could be? It hasn't been driven much lately but when I do go out in it I always warm it up properly before driving on boost. Also, I always carry out regular oil changes with the correct oil.
Thanks for any help!