I agree.  But an excellent "grommet" is a circle of slit fuel hose; it's better than any rubber grommet sold, and custom fit for the application!

Mike B.
  ----- Original Message ----- 
  From: Scott Daniel - Turbovans 
  To: vanagon@GERRY.VANAGON.COM 
  Sent: Monday, June 08, 2009 4:23 PM
  Subject: Re: Grommet for fuel hole in fire wall

  sorry........
  worked on way too many thousands of vw's that had a fuel line in a rubber
  grommet.....
  and eventually it wasn't very good, and things chafed, and eventually
  leaked.
  I stand by my recommendation to just go around the firewall, not through it.

  sometimes very low tech is actually better.
  Scott
  www.turbovans.com
  ----- Original Message -----
  From: "John Meeks" <vanagon@gmail.com>
  To: "Scott Daniel - Turbovans" <scottdaniel@turbovans.com>
  Cc: <vanagon@gerry.vanagon.com>
  Sent: Saturday, June 06, 2009 8:36 PM
  Subject: Re: Grommet for fuel hole in fire wall

  On Sat, Jun 6, 2009 at 3:20 PM, Scott Daniel -
  Turbovans<scottdaniel@turbovans.com> wrote:

  > the other philosophy, which works absolutely perfectly with anything
  > that's
  > floppy ..........like fuel hose.........is try not to mount it 'too well'
  > ..........mount it little loose, so no forces can generate on it. - - ,

  FWIW, The grommet Robert sourced  fits the hole in the firewall
  perfectly while allowing plenty of room around the fuel hose. There
  will be no chafing or rubbing with this set-up. I installed one today
  and am happy with the result.

  John Meeks
  '91 Multivan
  Northern Michigan

  Vanagon Rescue Squad
  http://www.vanagonauts.com/Vanagon_Rescue_Squad74.htm

  Radio Call:KC8ZFN