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Showing results for tags 'gq patrol rb25det'.
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Rb25det top end noise after new headgasket Hi everyone I need some help I have a Gq patrol with a rb25det I have just changed my head gasket as my old one blew n was overheating , So I replaced my head headgasket , new alloy radiator, and new 450hp turbo with 3"dump and stainless exhaust On start up after putting it all back together it has a bad tap in my top end sounds like a tappet noise but doesn't go away I let warm.up but still there and doesn't doesn't wanna rev properly either now I set base timing tic, then to its mark and set intake and exhaust cams to there mark also If anyone has ideas that would help heaps thanks in advance ,,,,,,,,