Subject: RE: Generator mounting bolts broke, now what!
Author: Tim Youtsey
Date: Jun 6, 2001, 11:54 AM
Post ID: 1707013529
Well here goes. I see there has been many replies on the broken bolts.
I haven't read them all, so if I repeat something, forgive me. I have always
had luck by:
1) filing the broken bolt flush to the surface.
2) center punch, take time and get it centered.
3) drill with a small diameter drill bit.
4) step up the drill bit diameter sizes until you close to the treads.
5) drill completely through the boken bolt making certain you don't
get into the other support material.
6) fill the hole with penetrating oil and let set.
7) blow some high pressure air in to the hole. ( this helps drive the
penetrating oil into the botom side of the threads).
8) use a square, carbide type extractor for your tool.
9) drive in the extractor but not to hard.
10) apply the reverse torque while tapping the top of the extractor
with a hammer (works like an impact wrench).
What ever you do, do not break this type of extractor. These extractors
are robust and won't break unless they are abused. Removing a broken
extractor will need to be done with an EDM process.
If this still doesn't work, give up on the removal and go to the Heli-Coil
method of restoring the treads.
Tim,
73 police
-----Original Message-----
From: Karl Kologiski [mailto:jane-@gte.net]
Sent: Tuesday, June 05, 2001 4:56 PM
To: 'Loopfram-@topica.com'
Subject: RE: Generator mounting bolts broke, now what!
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One thing I did with mine after they broke and I spent a whole Saturday
fishing them out was to replace them with a metric stud and metric nylon
lock nuts. I have not had any problems since then.
Karl and Jane Kologiski
Bird at The Wheel, Motorcycle Arts
St. Petersburg Florida
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-----Original Message-----
From: Robert Hawkes [SMTP:haw-@frontiernet.net]
Sent: Tuesday, June 05, 2001 7:43 PM
To: Loopfram-@topica.com
Subject: Re: Generator mounting bolts broke, now what!
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Tim and Dave Otis are right about getting those damn bolts out. Also, if
you can preserve the threads and you still have some bolt shreads in the
hole use a dental pick to get the remaining shreads of metal out. Bob
Hawkes
----- Original Message -----
From: Tim Crump <crum-@msn.com>
To: <Loopfram-@topica.com>
Sent: Tuesday, June 05, 2001 12:23 PM
Subject: Re: Generator mounting bolts broke, now what!
| ============================================================ Crazy for bargains? Go nuts with TopOffers where total bargain madness is normal! http://click.topica.com/caaacgEb1dfltb1FlG8a/TopOffers ============================================================ Hey Tim, I had to do this many moons ago when my (then) idiot brother-in-law, who knew everything, figured that 100 foot/pounds of torque was good for |
| bolts! What I do is drill the bolts out further, until there isn't much left but the threads. I've always been able to peel them out after that. You do |
| to be very careful, so as not to ruin the threads Tim Crump AMA#664988 MGNOC #262 FSSNOC #3057 AMF#100239 98 Moto Guzzi V10 (1000) Centauro 69 Moto Guzzi 750 Ambassador 80 Moto Guzzi 500 V50 II 98 KTM 620 Rallye Adventure "Remember, traffic lights timed for 35, are also timed for 70 mph!!" http://msnhomepages.talkcity.com/YosemiteDr/guzzitim/GUZZITIM.html _________________________________________________________________ Get your FREE download of MSN Explorer athttp://explorer.msn.com |
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