[W126 Coupe] Broken bolt

[David King]

Mr. Spellman,
Thanks for the info.
It was a front left side bolt. It sheared near the head and left sharp point
offset to one side.
Dave

David A. King, PE&LS
A2 Maps & Surveys
627 Norwich Road
Oakdale, CT 06370
Ph. (860) 889-5905
Fax (860) 889-5942
http://www.A2Maps.com
----- Original Message ----- 
From: "Dick Spellman" <spell.yy at verizon.net>
To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>
Sent: Friday, August 31, 2007 2:50 PM
Subject: Re: [W126 Coupe] Broken bolt



> David:

>

> You need to run down to a Sears store and pick up a bolt extractor kit

> of a diameter less than the wheel bolt so as to not damage the threads.

> The kits have a drill bit followed by an extractor that will permit the

> bolt fragments removal if done right.

>

> Or reassemble the wheel with just 4 bolts and torqued to factory spec of

> 80 ft lbs only.  Run it up to a local garage and ask they remove the

> damaged lug bolt.

>

> All the wheel bolts should be inspected if this happened from being on

> there way too tight by some mechanic that used say an air tool without

> regard for the torque.  Replace any that use the long stem with the new

> MB bolt version available at the local MB dealer.  These extension bolts

> on the 15 hole wheels have been done away with because they do snap and

> represent a safety issue too.  So, if that's what you've got, get the

> updated bolt from MB.

>

> Was this the front rotor or the rear wheel hub where the bolt cracked?

>

> Dick

>

> David King wrote:

> >

> > I need some help with a broken wheel bolt on a 1990 560 SEC.  The last

> > 1/2 inch fractured at a nasty angle and I'm not sure what to do? Any

> > ideas.

> > Dave

> > David A. King, PE&LS

> > A2 Maps & Surveys

> > 627 Norwich Road

> > Oakdale, CT 06370

> > Ph. (860) 889-5905

> > Fax (860) 889-5942

> > http://www.A2Maps.com

> > ------------------------------------------------------------------------

> >

> > The MB Coupes Website!

> > W126 SEC Mailing List

> > Postings remain property of MB Coupes, L.L.C.

>

> The MB Coupes Website!

> W126 SEC Mailing List

> Postings remain property of MB Coupes, L.L.C.

>

>

>

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8:21 PM

>

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