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[raywilb]

does any body still tighten the head bolts down to a torque as opposed dwell angles. I did buy a dwell angle tool though not happy trying to use it.  reason of ask is a mate suspects a h/g problem.

[biggriffin]

Omega is tourqe then angle

[al brown]

All depends on the car, some are just torque loaded, some are angle tightened. Each must always be done the way the manufacturer specified.
Al

[Kevin Wood]

Yep, most cars these days use stretch bolts, and this necessitates angle tightening.

The initial torque setting is just to bed the bolt in. Angle tightening applies a defined amount of stretch.

[jimbo125]

Yep did the HGs on mine recently 25NM IIRC then Three times 90 degrees x18 bolts your back feels that I can tell you