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On 23 Dec 2003 at 1:02, Neil Verdon wrote: > the reason i say use the flat washers as well is over the years all the > engines ive taken down a lot have shown quite a bit of corrosion in this > area from steel being in contact with aluminium! Yeah, galvanic corrosion eats away the light alloy from under the steel bolt heads..The flat washers might spread the force out over more area and get some more support, but the bolt bosses are actually quite thick and I don't think we're in any danger of them weakening noticably. This is a problem for all the steel fasteners against the case and light alloy parts anywhere. I don't know a good solution for it. Perhaps some Al, Mg, or Zn washers which would be sacrificial so they could be replaced as they were eaten away. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org