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Cars & Coffee Killer
Join Date: Sep 2004
Location: State of Failure
Posts: 32,246
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Stripped Brass Screw
The brass screw on the idle control valve on my throttle body is stripped.
I know there is some kind of reverse-threaded drill bit that I can buy to remove the screw after I drill a hole down its center--what is this kind of bit called?
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Some Porsches long ago...then a wankle... 5 liters of VVT fury now -Chris "There is freedom in risk, just as there is oppression in security." |
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07-31-2006, 06:55 PM
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Monkey+Football
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Easy-Out
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<Insert witty comment> 85 Targa Wong Chip Fabspeed M&K Bilsteins and a bunch of other stuff. |
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07-31-2006, 07:24 PM
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Registered
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1983 944 - Sable Brown Metallic / Saratoga / LSD : IceShark Light Kit |
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07-31-2006, 07:28 PM
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Registered
Join Date: Sep 2001
Location: Dismal Nitch, AZ
Posts: 9,042
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Left handed drill bit.
Good luck.
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Don . "Fully integrated people, in their transparency, tend to not be subject to mechanisms of defense, disguise, deceit, and fraudulence." - - Don R. 1994, an excerpt from My Ass From a Hole in the Ground - A Comparative View |
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07-31-2006, 07:29 PM
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Cars & Coffee Killer
Join Date: Sep 2004
Location: State of Failure
Posts: 32,246
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Bryan, I've got those....they'll all too big for that screw.
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Some Porsches long ago...then a wankle... 5 liters of VVT fury now -Chris "There is freedom in risk, just as there is oppression in security." |
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07-31-2006, 07:32 PM
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Registered
Join Date: Sep 2001
Location: Dismal Nitch, AZ
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I also use square shank screw extractors.
They tend to not spread out (causing even more binding) the broken screw as much as regular extractors (EZ out) can as you rotate them. . Good luck II.
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Don . "Fully integrated people, in their transparency, tend to not be subject to mechanisms of defense, disguise, deceit, and fraudulence." - - Don R. 1994, an excerpt from My Ass From a Hole in the Ground - A Comparative View |
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07-31-2006, 07:49 PM
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Banned
Join Date: Feb 2003
Location: So California
Posts: 3,787
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Just drill the largest hole down the center that you can. The rest will almost fall out by itself. We are talking about 4-40 or 6-32 screw sizes here with a brass screw.
Otherwise just drill it out and tap for the next size screw. |
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07-31-2006, 07:52 PM
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B58/732
Join Date: Feb 2000
Location: Hot as Hell, AZ
Posts: 12,313
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Easy-Out (ee-zee-owt) n.
1. The hardest known substance in the universe, most likely to be found snapped off in holes that have been inexplicably drilled into bolts, screws, etc.
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ΜΟΛΩΝ ΛΑΒΕ I don't always talk to vegetarians--but when I do, it's with a mouthful of bacon. |
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07-31-2006, 08:12 PM
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Join Date: Apr 2002
Location: NoCal
Posts: 2,411
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Many times a left handed drill bit is all you'll need. The bit will drill out the offending bolt, but I've found that it also tends to back the screw out as you're drilling. We've got a couple of 1/8" drill bits in the shop we use for exactly that purpose, and they work great.
Good luck, Jim |
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07-31-2006, 09:49 PM
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Banned
Join Date: Feb 2003
Location: So California
Posts: 3,787
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For the real problems theres wire EDM.
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07-31-2006, 09:51 PM
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Registered
Join Date: Feb 2004
Location: Geneva, IL
Posts: 666
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Cut a slot with a dremel and use a flat-blade screwdriver.
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1971 Targa RS - Sold 1964 BMW 1800Ti 1969 BMW 2002 |
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08-01-2006, 06:30 AM
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Cars & Coffee Killer
Join Date: Sep 2004
Location: State of Failure
Posts: 32,246
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Quote:
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Some Porsches long ago...then a wankle... 5 liters of VVT fury now -Chris "There is freedom in risk, just as there is oppression in security." |
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08-01-2006, 06:39 AM
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Cars & Coffee Killer
Join Date: Sep 2004
Location: State of Failure
Posts: 32,246
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I got a hold of a reverse-threaded tapered bit. Worked like a charm!
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Some Porsches long ago...then a wankle... 5 liters of VVT fury now -Chris "There is freedom in risk, just as there is oppression in security." |
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08-01-2006, 08:09 PM
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You do not have permissi
Join Date: Aug 2001
Location: midwest
Posts: 40,129
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Bar soap for wood, antiseize for metal. Dremel should sell a 90deg drive head or tool for those situations.
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Meanwhile other things are still happening. |
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08-01-2006, 08:15 PM
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1983 Porsche 944 2.5 NA
