Date: Mon, 17 Feb 2003 18:09:44 -0800
Reply-To: Tom Young <tomyoung1@ATTBI.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Tom Young <tomyoung1@ATTBI.COM>
Subject: Re: Question about barrel spacers
Content-Type: text/plain; charset="iso-8859-1"
I bought these heads new many, many years ago and read that piece of paper
at the time.
Since I cc'd each head and measured all deck heights I know that a .020"
shim will give me:
Left side Right side
------------------ -----------------
7.3 7.3 7.3 7.31
which is about as perfect as you can get.
---------------------------------------------------------------
Tom Young '81 Vanagon
Lafayette, CA 94549 '82 Westfalia
---------------------------------------------------------------
----- Original Message -----
From: "Stan Wilder" <wilden1@juno.com>
To: <tomyoung1@ATTBI.COM>
Cc: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, February 17, 2003 3:50 PM
Subject: Re: Question about barrel spacers
> If you bought your AMC heads new there is a YELLOW paper in the box that
> says .......... DO NOT USE HEADGASKETS with these heads.
> I hope you understand this this is a serious reply and AMCs do not use
> head gaskets.
> I use .010 aluminum base shims to get .028 deck height and 7.4
> compression.
>
> Stan Wilder
>
>
> On Mon, 17 Feb 2003 14:56:47 -0800 Tom Young <tomyoung1@ATTBI.COM>
> writes:
> > I've seen this tech bulletin, but I'm not sure what you mean when you
> > say
> > "blow off the barrel spacers." The heads on this engine are AMC
> > heads so I
> > can't eliminate the "aluminum seal 021 101 341A between cylinder
> > and
> > cylinder head" and the bulletin specified substituting 1.6mm (.063")
> > barrel
> > spacers ("aluminum shim 071 101 341") in place of the paper.
> >
> > I'm going to install .020" barrel spacers in place of the .030" ones
> > that
> > are there. Since I cc'd the heads and measured the deck height
> > prior to
> > putting the engine together I know what the CR is and what it will
> > be.
> > ---------------------------------------------------------------
> > Tom Young '81 Vanagon
> > Lafayette, CA 94549 '82 Westfalia
> > ---------------------------------------------------------------
> > ----- Original Message -----
> > From: "Stan Wilder" <wilden1@JUNO.COM>
> > To: <vanagon@GERRY.VANAGON.COM>
> > Sent: Monday, February 17, 2003 12:20 PM
> > Subject: Re: Question about barrel spacers
> >
> >
> > > http://www.dolphinsci.com/techbull.html
> > > Read this .............. blow off the barrel spacers unless you
> > can get
> > > the .010 aluninum shims or paper from VW dealer.
> > >
> > > Stan Wilder.
> > >
> > > On Mon, 17 Feb 2003 10:58:08 -0800 Tom Young
> > <tomyoung1@ATTBI.COM>
> > > writes:
> > > > Hi all:
> > > >
> > > > When I rebuilt a couple of Vanagon air-cooled engines a few
> > years
> > > > ago I
> > > > noticed the barrel shims (the ones that go between the foot of
> > the
> > > > cylinder
> > > > and the crankcase) had "ridges" or raised metal around the
> > inside
> > > > and
> > > > outside circumferences caused, I guess, by the process of
> > stamping
> > > > them out
> > > > of sheet metal. I spent some time lightly sanding down the
> > ridges
> > > > to a
> > > > certain extent before installing them.
> > > >
> > > > I just ordered some new shims from the Bus Depot - I'm going to
> > > > increase
> > > > the compression ratio of one of the engines slightly - and these
> > too
> > > > have
> > > > ridges. So, the question:
> > > >
> > > > Is it really necessary to try and eliminate these ridges left
> > over
> > > > from the
> > > > production process, or is it OK to install them "as is?"
> > > >
> > > > I can't imagine VW doing anything about these ridges back when
> > they
> > > > were
> > > > manufacturing these engines and, for all I know, the ridges get
> > > > folded back
> > > > out as a result of the pressure created when the heads are
> > bolted
> > > > into
> > > > place.
> > > >
> > > > Anybody have any thoughts?
> > > >
> > > > TIA.
> > > > ---------------------------------------------------------------
> > > > Tom Young '81 Vanagon
> > > > Lafayette, CA 94549 '82 Westfalia
> > > > ---------------------------------------------------------------
> > > >
> > > >
> > >
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>
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