Been there done that, about 2 weeks ago infact. I used the trusty
Gibbonizer (Dremel tool) to drill out the easy out (who the heck came up
with that name?). Took awhile but it worked.
Larry Hoy
=====================================
At 05:07 PM 3/9/98 -0500, Matt Kulka wrote:
>t rained all day Saturday, and my wife had her mom to visit with, so I
>had some time to start putting the motor back together on my '74 B.
>Crankshaft and main bearing caps went in without a hitch, and the new
>shallow dish pistons gleamed beautifully from freshly overbored
>cylinders. Next step, the new camshaft: Pre-installed the sprocket
>to check the endfloat, glooped lots of lube on the bearings, inserted
>the shaft carefully so as not to ding a bearing with a cam lobe, found
>the correct position for the retaining plate, started twisting in the
>1/4" bolts, and then zzziippp! Twisted a head right off one of the
>bolts.
>
>I tried to grab it with a vice-grip, but there wasn't enough bolt
>sticking out to get a grip on. Next step, I drilled a hole in the
>middle of the bolt, inserted a screw-extractor, gently tapped it with a
>ball peen to set the threads. Connected a tee-handle, gently applied
>pressure, felt the threads take a bite, added more torque, and then
>piinnngg! The screw extractor broke off in the bolt.
>
>Now I have a real mess. If I'd have left it alone, I could have drilled
>the whole mess out oversize, and installed a heli-coil. But I don't own
>a drill bit that can chew into the hardened metal of a screw-extractor.
>I know, because I tried.
>
>If any of you old hands or slick whippersnappers can help me out here, I
>sure would be grateful. I'm plumb out of ideas (and the ones I had sure
>didn't do me much good.)
>
>Thanks in advance.
>
>Matt Kulka
>'74 B - whose life is dangling by a thread.
>
>
Larry Hoy
Denver, Co USA
1969 MGB
1987 Jaguar Vanden Plas
"Is's not how fast you go, it's how fast you go fast"
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