Orma wrote: >It seems that some where in the past I read that temps are >different at different places on the head. Is under the plug the hottest >spot?
Well, I wacked Google on this one http://www.google.com/search?num=50&hl=en&lr=&ie=UTF-8&q=vw+%22head+temperature+probe%22+&btnG=Search and came up with this one result, which didn't show what I wanted to show http://www.greatplainsas.com/bf20032.html According to them (and some others) the spark plug is not an accurate place for head temp measurements. When the Mexican Beetles went to fuel injection, VW added a boss to the heads to provide a known place from which to measure temperature; that's what I can't find the picture of at the moment. If I remember correctly, it was near the corner of the valve cover, about 1-1/2" toward the center of the engine. Regards, RonB
