SOLVED: Bolt extractor head broke off - advice needed

[Fless]

Success! Now you can deal with that broken bolt on your own schedule.

 

[petethepug]

@alvocado Edit your title to add Solved or Resolved and take the win.

 

[Joseph Garcia]

@alvocado Thank you for posting the solution to your issue, and editing the thread title to state that. Our collective knowledge base has been increased.

 

[Charlie207]

You just reuse that ground bolt in place of one of the Dorman bolts. There is a separate clamp that works for the drive's front/passenger rear sections of the manifold. Remember, the cyliner heads are identical, so front-left of one side equals rear-right on the other.

I used both styles of clamps on my last engine, as it had a few broken manifold bolts, and needed help sealing up the leaks.

 

[Skywagon]

Throw away screw extractors. I've seen many many cases where they break off. Your fortunate some is sticking out. A friend of mine owns a BMW Motorcycle dealer. Here is their remedy. Weld a washer onto the extractor, weld a nut on to the washer, back it out. Try to do it as soon after the weld as possible as the heat will make it easier to back out. If the bolt is too tough to come out on its own, it's too tough for a screw extractor

 

[mickier]

I've seen people put a short pipe over the broken bolt and then weld to the bolt inside the pipe - the pipe will protect the surrounding material and give you something to grab onto as well...

 

[PatDTN]

Since you're going to want to turn it when done use a nut that slips on. The heat of welding that on frequently releases the bolt.

 

[j91z28d1]

Throw away screw extractors. I've seen many many cases where they break off. Your fortunate some is sticking out. A friend of mine owns a BMW Motorcycle dealer. Here is their remedy. Weld a washer onto the extractor, weld a nut on to the washer, back it out. Try to do it as soon after the weld as possible as the heat will make it easier to back out. If the bolt is too tough to come out on its own, it's too tough for a screw extractor

I have never had any luck with screw extracters. if I gotta drill it, I just keep stepping up a size till there's almost nothing left. once it's thin enough you can usually get what's left out.

as for welding. if you got a mig, I also find the nut thing a hassle. all this hardware is coated with stuff these days and they just don't stick well. I find it much easier to just build it up with weld above the surface, grab it with good quality Pliers while it's still red hot and twist it out. done a few on my ls3 car like that. they spin right out.