[DML] Re: Rob Grady Stainless Studs -- Price Quote Please
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[DML] Re: Rob Grady Stainless Studs -- Price Quote Please



Aren't you glad the air filter housing bolts are common 6x1mm!

Please quote us a price for 7x1mm studs with nuts by the piece (I'd
like to convert my internal water pipe bolts too). You may also have a
market converting valve and timing cover bolts. Am afraid the angle of
intake manifold bolts has you clipped.

BTW: Are your studs fully threaded, or do they have a stop in the middle?

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "PJ Grady" <rob@xxxx> wrote:
> After my post on stainless exhaust studs Martin G. sent me an e-mail
> explaining his negative view on combining stainless and aluminum. He
> suggested a test which involved soaking a head with our s/s stud
installed
> for a week in a salt water bath for a week to see if any galvanic action
> occurred. I did this test for two weeks in heavily salted water and then
> removed the head to dry. There was no trace of rust or galvanic
action on
> the stud and I unthreaded it by hand after the initial turn to
loosen it.
> The head however showed a heavy salt buildup suggesting a salinity level
> approaching the Great Salt Lake! I did put a dab of high temp
Anti-seize on
> the installed thread, as we've been doing for twenty odd years on the
> original studs when replacing them, and am very confident that this
reduces
> the chance of galvanic action to a minimum. After about 250 exhaust
manifold
> jobs I'm looking forward to NOT having to replace the studs every
time an
> exhaust gasket wears out. BTW we've been changing air cleaner
mounting bolts
> to stainless for over twenty years and have never had one seize (WITHOUT
> using Anti-seize}. This is what led me to believe that, in the real
world,
> stainless studs (hardened of course) are the way to go in solving
the rusted
> stud syndrome. I firmly believe that mild steel has a much higher
degree of
> galvanic action than stainless. Our exhaust kits now feature
stainless studs
> for those of you interested. I have a number of new products that
haven't
> made it onto our website yet such as these studs. Unfortunately I'm
better
> at envisioning and making new products than marketing them.
Now....let the
> nay Sayers begin!
> 
> Robert Grady  
> 
> -----Original Message-----
> From: tobyp@xxxx [mailto:tobyp@xxxx] 
> Sent: Thursday, March 25, 2004 5:29 PM
> To: dmcnews@xxxxxxxxxxxxxxx
> Subject: Re: [DML] Custom Made Gas-Flap door
> 
> Ed - When you put aluminum and stainless steel (or mild steel for 
> that matter) together in close proximity, and add moisture, you get a 
> wonderful battery.  The aluminum starts to dissipate, leaving a white 
> powdery corrosion product called aluminum oxide.  All European cars 
> with aluminum skins attached to steel frames require a isolator ply 
> between the two materials to prevent the body skins from 
> disappearing.  In the aerospace industry, when we put aluminum and 
> stainless steel together (which happens a lot) we apply two coats of 
> a chromium-rich epoxy primer to each material, so we have four coats 
> of paint for protection.  We also fay seal the pieces together with a 
> high-performance sealant so that no moisture can get between the 
> layers of dissimilar materials, and install all fasteners with 
> sealant as well.  In short, without extensive protection, putting 
> them together is a bad idea.
> 
> 
> Toby Peterson  VIN 2248 "Winged1"
> DeLorean Parts Northwest, LLC
> www.delorean-parts.com 
> 
> 
> --- In dmcnews@xxxxxxxxxxxxxxx, "Ed Garbade" <edgarbade@xxxx> wrote:
> 
> > Can anyone give me a definitive answer with respect to dissimilar 
> metal galvanic corrosion between stainless and aluminum?
> > 
> > Is it a problem or not?
> 
> 
> 
> 
> 
> To address comments privately to the moderating team, please address:
> moderators@xxxx
> 
> For more info on the list, tech articles, cars for sale see
www.dmcnews.com
> 
> To search the archives or view files, log in at
> http://groups.yahoo.com/group/dmcnews 
> Yahoo! Groups Links




To address comments privately to the moderating team, please address:
moderators@xxxxxxxxxxx

For more info on the list, tech articles, cars for sale see www.dmcnews.com

To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
     http://groups.yahoo.com/group/dmcnews/

<*> To unsubscribe from this group, send an email to:
     dmcnews-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
     http://docs.yahoo.com/info/terms/
 



Home Back to the Home of PROJECT VIXEN 


Copyright ProjectVixen.com. All rights reserved.

Opinions expressed in posts reflect the views of their respective authors.
DMCForum Mailing List Archive  DMCNews Mailing List Archive  DMC-UK Mailing List Archive

This site contains affiliate links for which we may be compensated