hi all. the clattering noise could be a couple of things. firts i would check the exhaust manifolds 4 hairline cracks i have seen that before also there is an old tsb for rocker shaft ticking noise. what hapens is the tappets in the ball socket of the rocker arm comes loose and makes a tapping noise however this is not an issue that will make your rover die out. you should have it scanned for trouble codes even though the check eng light isnt on it can store sporadic codes in the ecu
