Thread: Bolt extraction...
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05-19-2004 07:15 AM #1
Bolt extraction...
I recently bought a used intake manifold from a Mopar swap meet. After getting it thermal cleaned and painted I realized as I was putting the carburator on that there was half of a bolt stuck down in one of the four holes. I bought a bolt extraction kit but I have been told two different ways of doing this.
So... Do I simply drill the bolt extractor in reverse all the way down inot the screw until the bolt starts unscrewing?
Or do I drill a tiny hole in the screw and then drill the extractor into the hole?
And if neither of these is correct then may I please get a step by step answer?John 3:16 ><>
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05-19-2004 07:44 AM #2
You drill a hole in the center of the broken bolt then use a hammer to tap the extractor into the hole. Then you back the screw out by hand with a T handle used for tapping. An adjustable wrench or power drill will most likely break the extractor." Im gone'
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05-19-2004 09:18 AM #3
Al's method is correct for the "old" style extractor that looks kinda like a tap with elongated, shallow "threads" that have a "left hand twist".
If you bought the newer style extractors that have the two pieces with the point looking something like a two bladed counter sink bit, and an upper piece that looks something like a nut then that is used in a reverse rotation drill. If you bought it new it should have an instruction sheet with it. Ignore the usual male impulse and read them. These take some getting use to.
Then if you get it all screwed up you can learn about helicoils.Your Uncle Bob, Senior Geezer Curmudgeon
It's much easier to promise someone a "free" ride on the wagon than to urge them to pull it.
Luck occurs when preparation and opportunity converge.
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05-19-2004 02:22 PM #4
Bolts broken off in aluminum always seems to be harder to remove, due to the reactionj between the 2 different metals. Put lots of penetration oil in there to kill this reaction.Home Handyman Forum
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05-20-2004 01:41 AM #5
Originally posted by poncho62
Bolts broken off in aluminum always seems to be harder to remove, due to the reactionj between the 2 different metals. Put lots of penetration oil in there to kill this reaction.Ed ke6bnl@juno.com
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