Robert and group. 100% correct to replace the copper washers. That's why I carry a complete set and types of copper washers and 7mm hardware. They are hard to find and even I have to order a lot from Germany where the 7mm screws are made. John Hervey www.specialTauto.com << So, whenever you work on the fuel system, and it involves anything where you have to remove a bolt, then you'll need to replace the copper washers with brand new ones. Whats interesting about this is that Pep-Boys, nor any other auto supply store that I've been to carry the washers. Niether do BOSCH suppliers, however, they do sell aluminium washers that fit and function just fine. I've used them on my car with no problem at all. What the difference is (besides the price to make them, I'm sure), I've no idea. -Robert vin 6585 "X" >>