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<x-charset iso-8859-1>This is what mine looked like with the last set of heads... the seat was indeed sunken but the valve also mushed its way into the seat... I figured that the seat was perhaps a bit loose and the valve wasnt always hitting it square. Perhaps the valves where simply poor quality... I had issues with other valves in that set of heads (some of them were at Parma). My problems occured over 30 or 40K miles though... not nearly as quickly as yours OTOH... if your guide was loose AT ALL... your valve isnt hitting square.... and could cause this, it is also at risk of breaking off totally... DONT reuse that valve... and double check the guide. Lastly... did you set up the geometry?? I think I remember your doing that when you built it though,. Keith > > I pulled both the #1 and #2 exhaust valves from the head. It is clear that > the three angle cut is ok on #1 and the valve is kissing off in the proper > spot on jsut the outside diamter of the 45 degree valve face. However, it > looks like #2 has pounded itself into the seat so it is trying to kiss-off > along the whole 45 degree surface of the valve. Might even only be trying > to kiss off in the inner diameter of the 45 degree face. There is no > evidence that the seat itself is receeding into the head. Just the valve > into the seat. I compared the lengths of the two valves and there is no > observable difference in their lengths. > ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/ </x-charset>