Hi George , Thnx for the reply but i think it is more engine than loose items etc,some one suggested a dicky egr valve not closing , i have just bought this heap but i bought it with a Ticky engine --description given ,it was more of a heavy tapping which i put down to a hydraulic tappet getting tight & causing a valve to catch a piston so i fitted a timing belt kit (vw) & hydraulic tappets (europarts)which got rid of the heavy tap, i have rechecked belt/timing & reset injectors yesterday, the drone/backbeat was still there but you could just here it but by the time i got home (10 miles) it had got louder, you can here something like a blow/suction when you rev the engine then let revs drop also fuel consumption seems slightly heavier so it is a bit of a power Dix