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Most stem seals stay on the guide and scrape off the oil from the valve stem, but these stay on the valve stem so tend to push oil towards the guide - a fundamentally different mode of operation. Most modern cars have valves in the head at the top of the engine, and swim in oil. Stem seals are pretty much essential in these. Our near-horizontal valves aren't affected as much by oil getting inside the guides. They certainly used to be in the gasket kits - that's where I've found them in the past. I think we're all agreed that they are not used any longer. Dave. UK VW Type 3 & 4 Club http://www.hallvw.clara.co.uk/ ------ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org