Re: Removing H Head Studs

Posted by Andy Martin on September 03, 2001 at 06:57:19 from (63.27.17.189):

In Reply to: Removing H Head Studs posted by Zonie on September 02, 2001 at 18:21:48:

I am a big fan of welding nuts on flush breaks, and had to try 3 or 4 times recently on a transmission top plate mounting bolt.

BUT when you give up, let the machine shop you take it to take out the stud. Don't break an easy out off in it. It is much harder to drill them, especially if your hole (and easy out) is off center.

A good machine shop will line up the drill bit dead center of the hole to avoid damaging the threads, and will do all the drilling with left hand drill bits. Usually the stud will catch on the drill bit and back right on out before the last size hole is finished. If not, the original threads can usually still be cleaned up.

Another lesson from experience, after you get oil, etc. worked into threads which will budge but not come on off, heating may coke the oil and freeze the joint up real good. I did this on a 3-point adjustable arm and then had to do a lot of heating and pounding to loosen the joint.

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