Timing chains don't have an interval (replacement) period.
Unless it's an early 3 series BMW........
What car is it (just realised your not Spec IV darren!!) ?
Chain guides can be replaced if worn out as can the tensioner....but there only done if / when noisy.
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[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]
Last edited by Rossco; 07-10-2009 at 05:35 PM.
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