My ARP Stud Failed!!

[zstroken]

Why do you all break the nuts loose on the re tourquing of the head. seams like the head would move up just slightly and would be pointless. Just asking so be gentle.

Dynamic friction vs static friction. The coefficient of friction is typically higher on a static object vs a dynamic object. Picture trying to do a burnout, once the tires start to break loose they are up in smoke. Same thing applies on a clutch. If the clutch is already engaged it can handle more TQ than if your asking it to engage.

 

[Mwyant 00]

Ok, just saw this thread, What we did with one stud was take the broken stud and drop it on top of the piece stuck in the block. then we but an allen driver in the 3/8" impact driver, got on top of the engine so we could get our whole body weight on it and the jagged edge of the break caught and spun the broken piece out.

The other one we weren't so lucky, What we ended up doing is taking an old pushrod and cut the ends off (hollow inside). Take the hollow tube and put it on top of the broken piece, use a stick welder (put ground on pushrod, not on engine) and stick it down the hollow pushrod, get a good hot weld on the stud. Make sure that you don't weld too long so it doesn't burn through the rod. What I did was do about 5 or 6 three second welds, 3-4 seconds apart. After that you can grab the rod with a visegrip and turn out the broken stud.

Lavon

Thanks for the help. Seems like everytime i open the hood another stud is broke, im up to two now. Im going to park it till i have time to get them out. Will any do the job?