mgs
[Top] [All Lists]

Re: Screw Extractor

To: Mike Razor <mrazor@kih.net>
Subject: Re: Screw Extractor
From: john peloquin <peloquin@galaxy.ucr.edu>
Date: Wed, 9 Jun 1999 09:40:43 -0700 (PDT)
Dear Mike,

Welcome to the club! If I recall, I just chucked the part and bought a new
one. However, someone suggested taking the thing to a machine shop. They
are likely to laugh when they see the broken extractor, but that's
probably because they've been there, done that.

BTW, did you try the reverse threaded drill bit?

"Never ascribe to Malice that which can be explained by Ignorance."
John J. Peloquin, Assistant Research Entomologist
Entomology, University of California, Riverside, CA 92521

On Tue, 8 Jun 1999, Mike Razor wrote:

> Well gone and done it now.  the extractor broke off in the hole.  Thought I
> was going easy, had soaked the thing in PB blaster and was turning it by hand
> so as not to break it or create metal shavings.  I guess, as one wag
> suggested,  I need to pull the thing off and take it to a machine shop.  Have
> started to pull the caliper off and it does not want to budge.
> I am getting pretty close to selling the car, I am not beaten yet, but the
> tide of battle is turning against me.  This is my third MG and undoubtedly the
> hardest one yet to get on the road.   I wanted a challenge and boy did I get
> one with the MGC.
> I think I will go work on my TD for a while and let this beast sit.
> THANKS!
> MIKE R
> 
> john peloquin wrote:
> 
> > Dear Mike,
> >
> > Whoo Hoooo, screw extractors! Boy, I've broken off my share of those
> > things! First thing I'd try is getting a reverse thread drill bit small
> > enough to avoid damaging the threads of the calipers and the right size
> > for the screw extractor you use. There should be a chart telling you what
> > size screw extractor and drill bit you should use. If you can magnetize
> > the reverse thread drill before you start drilling, so much the better so
> > that you can catch any chips before they fall into the caliper! If you are
> > lucky, then you'll spin the broken bleeder valve out when you reverse
> > drill the thing out. If not, then you stick the proper size extractor in
> > the hole you've drilled and screw it out by turning in the opposite
> > direction you would normally turn to put a screw in- counter clockwise,
> > that is!
> >
> > Good luck. I've broken my share of small extractors and they are made of
> > REALLY hard steel!
> >
> > "Never ascribe to Malice that which can be explained by Ignorance."
> > John J. Peloquin, Assistant Research Entomologist
> > Entomology, University of California, Riverside, CA 92521
> >
> > On Tue, 8 Jun 1999, Mike Razor wrote:
> >
> > > Who can tell me how these things work.  I have a bleeder valve
> > > sheared off flush with the side of the caliper.  There is a
> > > hole in the middle that the #2 extractor fits in.  There is a
> > > picture of a drill on the box set of extractors.
> > > 1. Which way do I turn the drill (forward) (backward)
> > > 2. How much pressure
> > > 3. Am I suppose to chew the screw out or bite into it and back
> > > it out
> > > HELP!
> > > MIKE R
> > >
> > >
> 
> 


<Prev in Thread] Current Thread [Next in Thread>