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1987 911 Carrera Oil Temperature Measurement Position


Vehicle Information: Model: 911; Year: 1987; Body Type: Coupe; Engine (type, size, modifications): 3.2; Total Mileage: 66,000;

At what point in the oil circulation in the engine is the temperaturemeasured? I read in Anderson's Performance Handbook, page 189 1st column3rd paragraph, that "operating oil temperature should be around 200 F".Where is that measurement taken? My oil temp gauge is numbered and I amtaking pyrometer readings with a simple IR 'gun' pointed to the tube atthe rear of the engine, by the muffler, which takes the oil from theengine to the front fender oil cooler. After 3 twenty minute hard runs Iget readings at "gauge" /"tube" of 165F / 207F, of 160F / 204F, and of175F / 219F. I am getting a reading at the external thermostat, in frontof rear right wheel, above 200F only after the last run noted above wherethe "tube" was 219F -- temp at thermostat was 208F. So, where is the"operating oil temperature" measurement point most critical? PS On same page 189 1st column 2nd paragraph in the last sentence, "Theconnecting hoses and fittings ....should be -12 or larger ..." What is'-12'?

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