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RE: Aluminum heads

To: <REwald9535@aol.com>, <mgs@autox.team.net>
Subject: RE: Aluminum heads
From: "Larry Hoy" <larryhoy@prodigy.net>
Date: Tue, 23 May 2000 22:29:48 -0600
Hey Rick, answer this.  When you chase the head threads isn't there a danger of 
ending up with
fine metal parts in the cylinder?  Is there some trick to this?

Larry Hoy

> -----Original Message-----
> From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
> Behalf Of REwald9535@aol.com
> Sent: Tuesday, May 23, 2000 8:01 PM
> To: mvheim@studiolimage.com; djw69@idt.net; mgs@autox.team.net
> Subject: Re: Aluminum heads
>
>
> I seem to recall this post.  The warning as I recall was not to use the
> silver anti-seize on plugs.  I got a real chuckle out of this as for over 30
> years I have used nothing but silver anti-seize on plugs (and every other
> threaded fastener that need it).  In over 30 years of wrenching on a
> professional basis, I have never had a pulled thread, or had to install a
> heli-coil on a plug that I had previously removed.  So unless someone has
> documented evidence like a TSB from a car maker or plug maker I'm chalking
> this up to an automotive urban legend.
>
> Now to the problem at hand.  The secret to keeping threads in good shape is
> to make sure that they are clean, use anti-seize, don't cross thread when
> starting, and torque the plug to spec.  I use a thread chaser made by K-D
> (available at auto parts store) When you get the plug removed run the thread
> chaser through the hole to clean the threads.  Gap the plug, as place a dab
> of anti-seize on the threads, I also use dielectric grease on the porcelain
> to aid in release of the boot the at the next plug change.  Start the plug
> with either with a plug starter, or a piece of hose, with clean threads it
> should screw in easily.  Torque to spec.  If the plug is taper seat it has a
> much different torque spec!  If you are not sure look it up!
>
> Like I said this has worked for me for tens of thousands of plugs, but hey
> what do I know?
> Rick
>
>
> In a message dated 05/23/2000 11:34:27 AM Pacific Daylight Time,
> mvheim@studiolimage.com writes:
>
> > Oooh, I think you might want to search the archive on this one. I know
> >  there was a post on this subject which warned never to use anti-seize (or
> >  maybe just certain anti-seize products) with aluminum heads as it had
> >  some sort of chemical reaction which froze the spark plugs in place,
> >  similar to what you experienced. Or can the original author confirm this?
> >


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