[DeTomaso] Galled stainless fasteners

[Charles Engles]

Dear Dave,


        I was optimistic through the early phases of the attempted repair on
Tim's car.   I was optimistic even though a *very* experienced
machinist-mechanic proclaimed, "They'll never get it off.  It's stainless
steel."   When every attempt ended in frustration and even having the
culprit fully exposed on the work bench didn't help, I finally appreciated
the old mechanic's opinion.   That's all I know.  I did find the comments
about the metallurgy of galled stainless fasteners being different very
interesting.    You will have to let us know the end of your story!


             Warmest regards,  Chuck Engles



-----Original Message-----
From: Dave Londry [mailto:davel at emspace.com] 
Sent: Wednesday, May 26, 2010 1:21 AM
To: Charles Engles
Cc: detomaso at realbig.com
Subject: Re: [DeTomaso] Galled stainless fasteners

Say Charles,
Aren't you the perpetual optimist?
What happened?
dave

 Charles Engles wrote:
> Dear Dave,
>
>
>             This sounds remarkably like Tim Tytle's experience.  He had
> fancy aluminum pulleys secured with pretty stainless bolts.
Unfortunately,
> the bolts holding the crank pulley on the harmonic balancer were
improperly
> installed, resulting in the steel bolts coming a bit loose and turning the
> holes in the aluminum pulley into slots.  When the problem was finally
> found, only one or two of the galled stainless bolts could be removed.
> Ultimately, the balancer had to be removed and even with the pulley and
> balancer and galled bolts on the work bench one bolt couldn't be removed.
> New pulley. New balancer. Normal grade 8 bolts. No problems now.
>
>             It appears that you may have a real headache on your hands.
>
>   
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