Re-tourque head bolts..

[nando]

unless you have the old hex head bolts (that should be replaced), you cannot retorque them. Unless they were never torqued to begin with, TTY bolts when torqued properly are on the flat part of their yield curve. What this means is turning them further will not increase clamping force. But it does have the potential to break the bolts..

you could replace them one at a time, using the same sequence as if you were doing a set.

[blueapplesoda]

Are you sure it is coming from the headgasket? Hopefully your cylinder head is not warped so bad as to leak like that...

If you are using stock bolts...do not untorque them, just check the torque. They are torque to yield, aka. one-time use, once they are removed they are basically garbage.

If you have to change the bolts, do them one at a time. Untorque, remove, insert new bolt with threads lubed and torque.

[woodisgood]

I am leaking oil from between my head and block, not burning oil, not getting water in the oil. I am planning to pull the valve cover gasket and re-torque or change the head bolts. I have talked to a couple different people and have gotten different answers on how to do this.

1. Crack bolts one at a time and re-torque.
2. Crack all the bolts and re-torque according to the sequence in the bentley.
3. In case of changing bolts...one at a time or all at once?