Well, I just drilled one. I'll put more hole in my extra one to see if that is the problem. peter wrote: > I drill 2 small holes on the stationary lip of the thermostat. > > Peter -- Kervin 80 1.7 8v Ole Paul sold to the great north 82 1.7 8v The gift 86 2.0 8v no knock sensor yet 00 tt600