TIP: Great Tool for Removing Broken/Stuck Studs

Rich911E · Rich911E's Garage

Some of you may have read and many helped with (thanks again) my earlier thread for ideas on removing a stuck exhaust stud removed from my 2.7. This seems to be a rather common occurrence with the 911 engine and in accordance with the standard methods, I soaked and heated and persuaded and broke it anyhow.

It has been difficult to find the time to get the engine over to the machine shop to get it removed so, in a last ditch effort to remove the broken exhaust stud from my 2.7, I went into Sears yesterday and picked up a Lisle "Stuck Bolt, Nut and Stud Remover" set (Lisle #19250) for about $35.00. I got home, pounded it on like the instructions said and PRESTO! It came right out! The set comes with a whole range of removers for studs/bolts from 6mm to 14mm. Here is a picture of the package.

Just thought I would pass this along to others with this problem. Wayne, you might want to stock this.

Rich

Chuck Moreland · 03-23-2003, 10:44 AM

that's interesting. How much stud has to be out for that to get hold of?

Randy Webb · 03-23-2003, 11:34 AM

I don't understand how the diagram relates to the packaged items, which just look like a set of dies to me???

TimT · 03-23-2003, 12:26 PM

I haver a set of something like the Lisle stud extractors, but made by Snap-On.

They do look quite similar to dies, but imagine if these are really "external" EZouts.

I think the stud needs at least the thickness of the extractor for these to work well. If the stud is broken off flush with the head your SOL.

Doug Zielke · 03-23-2003, 12:34 PM

I have the Snap-On equivalent of this tool, as Tim noted.
They won't work with a flush break, and sometimes they will actually cause a protruding stud to break off. But they are another tool to have in your bag of tricks.

Rich911E · Rich911E's Garage

TIM: You're right -- it won't work for studs that are broken off flush. Then you need a series of drill (and likely a helicoil) or an EDM (but those are not terribly easy to find).

Randy: The set provides a series of dies that have six internal cutting elements/chisels that cut into the metal. It is made to fit closely, so you need a bunch of them. It really bites into the metal and gives it no place to expand or distort to so it gets a really good grip on the stud and mine came right out.

Chuck: It looks like it would work with about 1/4 showing -- I had more than that, so it wasn't an issue.

This tool just saved me a lot of hassle in this instance and it has attained a prized place in the garage for the moment. There are always threads on this topic and thought I would just pass along one more potential solution.

Rich