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How can i fix my vauxhall astravan, 2006, ecotec diesel?

Headgasket blown! Need advice on timing chain removal/replacement proceedure, can the chain be re-used? headbolt tightening sequence and tighten Ing torques, if poss send me autodata pages!!!
smithy2210, June 2013
False economy,get a timimg chain kit and replace all parts,not too expensive.
Replace head bolts.
Head torques stage 1-20NM,stage 2-40NM,stage 3-90 degrees,stage 4-90 degrees.
Cam cover-2 injector studs 25NM,16 bolts 18NM

cdc, June 2013
link Click here to see other fixes for Vauxhall.