head bolts

[trev15]

hello, when tighten down head bolts in 3 stages first finger tight, then torque to 70n/m then angle torque to 90 degrees if no angle torque as dont fit nice hard to see, how much furthershould it be tighten with torque in n/m

[MrMPuk]

There isn't a torque value, you need to turn them the 90°.

[trev15]

cheers, the book says tighten to 70n/m then put angleq torue 90degrees but cant work it so it must need tighten a bit more just wonder what n/mn would be if no angle torque old way cheers trev

[MrMPuk]

There isn't a further torque, you need to turn them the further 90° like the book says.

[trev15]

cheers not worry found it on goolge 90 degees = 30n/m

[MrMPuk]

It doesn't! You just need to turn them the further 90°

[trev15]

thanks now iam in ..it, tried to turn bolts 90 degress wont go anymore and thats a long way turn turn them, tighten to 98nm so dont no what to do now in the soup trev.

[MrMPuk]

Oh yes it takes some force.

[winterheating]

thanks now iam in ..it, tried to turn bolts 90 degress wont go anymore and thats a long way turn turn them, tighten to 98nm so dont no what to do now in the soup trev.

are they new bolts??

id prob take them all out now equally and retorque them again properly, worth the extra for the sake of the head gasket.

35nm then 70nm, then make sure they all turn 90degrees to finish. IF Youve got right size torque wrench shouldnt be that hard??

[trev15]

old bolts, torue wrench is new one big19inch or more torques up 210 nm already tight to 98n/m dont no what to do? there must be a normal torque for them if no angle torue old why

[MrMPuk]

Why can't you just angle torque them, it's just another quarter turn? You don't need and angle gauge, just mark the top of the bolt and do it a bit at a time till it reaches 90°.

[trev15]

thanks, even thow ive tighten to 98 will it be ok to undo start again without buying another new gasket only just put this one on

[MrMPuk]

Obviously you need to start from scratch. I'd get a new head gasket. Did you check the length of the head bolts before refitting?

[trev15]

no just clean old bolts put back in, if ive got to start again might as well just keep going put it back together see what happens if it over heats then worry about it may be change engine

[MrMPuk]

If only you'd listened from the start. Not really sure why you asked for advice if you're going to ignore it.