VANAGON archives -- August 2004, week 2 (#345)

Date: Thu, 12 Aug 2004 10:47:07 +0300 Reply-To: Joy Hecht <jhecht@ALUM.MIT.EDU> Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com> From: Joy Hecht <jhecht@ALUM.MIT.EDU> Subject: Re: exhaust nuts In-Reply-To: <Pine.SOL.4.58.0408120613210.768@timepilot.gpcc.itd.umich.edu> Content-Type: text/plain; charset="US-ASCII"

Maybe they were designed by an exhausted nut?

**************************************************************** Joy Hecht and Matilda, 1989 Burgundy Vanagon

For musings about life and the vanadventures: http://users.rcn.com/jhecht/gypsy

****************************************************************

:::-----Original Message----- :::From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf :::Of Jonathan Farrugia :::Sent: Thursday, August 12, 2004 1:20 PM :::To: vanagon@GERRY.VANAGON.COM :::Subject: exhaust nuts ::: :::so a week or so ago i had the chance to take apart a 1.9 wasserboxer :::exhaust with the factory exhaust system on it. or i assume it was since :::the van is from arizona. anyhow the exhaust nuts mounting the headers to :::the heads were unlike any that i have seen before. they are 13mm nuts :::with what look like wound spring steel inserts inside them. similar to :::what a helicoil looks like. if these are factory nuts are they still :::available at the dealer or would the dealer hand me some regular nuts :::with :::a N part number? additionally does anyone know why these nuts were made :::like this? i would guess something to do with the thermal expansion :::differences between the aluminum head and the steel of the header and :::stud. ::: :::jonathan

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