Torque spec 606 glow plug????
 

Title says it all. Got all 6 out with no problem. Need to put them back with some anti seize.Hope someone here would know the spec. TIA
Don

Service manual says 20Nm. Once you've got them in, I'd recommend a short test run of the engine to make sure there are no leaks before you put the intake manifold back on.

Any tips/tricks on how to get them out?

ideas here
 

Thanks for the help!
the only thing we did beyond just unscrewing them was remove the injectors a week ago and keep the gps wet with Blaster every day,a little on the tip of the hot end and some on the thread end.Blaster does a good job of softening the carbon and of course helps on any threaded device.

Attacking the carbon from the inside by removing the injectors, that is very clever.

Anything you can do to reduce the amount of torque applied to the external nut will be helpful.