C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Aug 6, 2009 | 09:18 PM
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Default Valve Cover Bolt:

Ooops.. I had a cheap Mr. Gasket dress up valve cover bolt snap flush with the head from tightening by hand even. Im... a little less than impressed with these things at this point now. lol.

Whats the easiest way to back this thing out? Hoping I dont have to go get a tap&die set..
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Old Aug 6, 2009 | 09:35 PM
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If it is broken flush with the head, you are going to have to drill it, and use an "easy out" tool to remove it. May have to retap the threads if your drilling messes it up. Good luck.
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Old Aug 6, 2009 | 10:41 PM
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Try using something with a sharp tip like an ice pick. With the valve cover and gasket removed, see if you can get the point of the tool to catch on an uneven part of the broken bolt. Push in a counter-clockwise direction so the bolt screws out. I have done it this way successfully when the bolt isn't stuck in the hole.

Pete
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Old Aug 6, 2009 | 10:47 PM
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left handed drill bits.
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Old Aug 6, 2009 | 11:39 PM
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Originally Posted by PeteZO6
Try using something with a sharp tip like an ice pick. With the valve cover and gasket removed, see if you can get the point of the tool to catch on an uneven part of the broken bolt. Push in a counter-clockwise direction so the bolt screws out. I have done it this way successfully when the bolt isn't stuck in the hole.

Pete

It takes a little finesse but you can use a small hammer and tap the ice pick also. I have screwed out many bolts this way.
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Old Aug 8, 2009 | 05:29 PM
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Default A little bitty 1/4-20 bolt only needs a little snug-up.

Easy does it, hoss.
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Old Aug 8, 2009 | 06:17 PM
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go straight and easy, it will usually fetch up and back out.. if not you have a hole for an easy out
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Old Aug 8, 2009 | 06:50 PM
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I had a friend who did this with his '69 Camaro in the early '80s. We created a slot with a small chisel and then used a screwdriver to unscrew it.
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