Question about Vauxhall Astra
Head bolt Torque settings for 2002reg 1.7cdti vauxhall Astra car
Posted by Anonymous on
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Posted on Jan 02, 2017
joyce, there are different specs for sohc and dohc engines. my advice is to get a Haynes manual from the auto parts store.
Posted on Sep 01, 2008
SOURCE: head bolts torque settings
According to my haynes manual for G-S reg, 1989-1998 it goes as follows,
Stage 1:- Tighten all bolts by hand until bolt heads just contact cyl. head.
Stage 2:-Tighten all bolts to 40Nm or 30lb ft.
Stage 3:-Angle tighten all bolts a further 60 degrees.
Stage 4:-Angle tighten all bolts again a further 60 degrees.
Stage 5:- M12 x 140mm bolts ONLY angle tighten a further 20 degrees.
Hope this helps everyone, sorry it seems longwinded but that is how it's written in the manual.
Posted on Feb 07, 2009
SOURCE: head bolt torque spec
STARTING OUT YOU HAVE TO REPLACE THE OLD BOLTS DUE TO STRETCHING.BESURE TO USE NEW BOLTS LUBRICATE NEW BOLTS IN OIL.BESURE TO USE TORQUE SEQUENCE GUIDE OR PHOTO.YOU GOING TO MAKE THREE PASSES * FIRST* PASS YOU TORQUE ALL HEAD BOLTS TO 12 TO 18 FT LBS * SECOND *PASS YOU TORQUE ALL BOLTS TO 26 TO 33 FT LBS.*THIRD PASS YOU TORQUE IT TO 44 FT LBS.THATS THE FINAL TORQUE.
Posted on Aug 16, 2009
assuming this is the "C" engine 8th digit on VIN plate. Use new bolts. torque first step to 25lbs, 2nd 50lbs, then 3rd 50lbs, then 1/4 turn.
Posted on Sep 23, 2009
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