2 replies to this topic

[steven]

just wondering if anyone else has had trouble with there thermostat studs threads stripping when trying to remove the nuts ?

[dklawson]

It is much more common for people to have the studs shear off almost flush with the top of the head. Stripping the threads in the nuts or under the nuts would be a Godsend by comparison.

If your studs stripped on the "top" end where the nuts are, apply penetrating oil where the studs go in the head and strike the top of the stud with a hammer like you were driving a nail. Do this many times. Then use mole grips to wiggle the stud in and out. Turn the stud to screw it in before trying to screw it out. Work in larger arcs (in and out) to work the penetrating oil down the threads and into the head. Slowly work the studs out like this one at a time.

If on the other hand the tapped holes in the head have stripped, buy a HeliCoil kit of the proper size and repair the threads with that.

Anti-seize compound during re-assembly will help prevent this in the future.

[steven]

thanks for that i changed mine today just wandered if its a common problem