Sounds like someone left you a broken easy out. If it isn't a blind hole and
you can drill from the top or other side as far as you can and knock the
easy-out
out with a punch you could indeed consider yourself lucky. I would try this
first
if possible. If that doesn't work carbide is the answer. I would go with a
carbide rotary file in your dremel as far into the hole as you can get. You may
have to finish with a carbide drill. Make sure if you do go with a drill you
leave yourself a smooth surface with a center to get the drill started without
chipping it. Carbide is somewhat brittle and chips from a drill imbedded in the
whole mess can turn ugly. If that happens the rotary file is your only hope at
home. Blind holes add to the aggravation, it helps to be able to drill clear
through. If you do bung the threads up you can fix it with a heli-coil or maybe
the next size larger bolt.
Grant,
50 Chevy 3100
52 GMC 150
Hudson29@aol.com wrote:
> I'm back to work today on the same broken bolt that stymied me several
> weeks ago. The first part of the job was to use a Dremel Moto Tool to grind
> the shaft of the broken bolt level inside the hole. Once this was done I
> figured on using the new toys the Snap-On guy delivered Wednesday, an
> extractor set with drill guides. I had high hopes for the drill guides, but
> bumped into an unpleasant surprise before I could use them.
> The Dremel with a rotary grinding bit did clean up the hole so that I
> could see what was going on, and it looks like a metallic five pointed star
> is imbedded in the broken bolt. It is very tough, and even the new Cobalt
> drills won't touch it, just skating across the surface. Could this be what is
> left of an "Easy-Out" that somebody broke off and just gave up on?
> What now? I think I'll go back out and work with the Dremel awhile, but I
> doubt that will get much further down. I would sure hate to have to drag the
> entire motor out to a machine shop to have one oil pan bolt removed, but I'm
> runnin' out of ideas.
>
> Paul O'Neil, Hudson29@aol.com
> 1951 Chevrolet 3600 Pickup Project, See it at:
> The Poor Man's Advanced Design Tech Tips Page
> http://home.earthlink.net/~conntest47/
> Fullerton, California USA
> AEROMARK - Need Rubber Stamps or Signs? See:
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