Ok, this would be real simple if I had the factory manuals, but x-mas is over and I'm broke. I just want to verify the measurements for the reference and speed sensor positions. My search yielded some questionable info from 'google' as follows:
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:This is word for word from a Chilton manual: : :"Porsche specifies that the distance between the engine speed sensor and the :flywheel must be 0.8 mm. If the distance approaches 2mm, a longer cranking time :will result, and the engine may not start at lower temperatures. The engine will :run normally during warm-up, but may idle higher than normal at operating :temperature. If the distance approaches 3mm, the engine will hesitate during :acceleration, and will miss. Due to heat expansion, the engine may stop running :for short periods." : :I imagine these symptoms could also be caused by a faulty sensor that is producing :a weak signal, but that is purely speculation on my part.
ave C. : :> What exactly happens if the gap on the sensors isn't correct? I broke the :> little housing they were in while doing my clutch and saw the slotted hole, :> but I just tightened the new housing after inserting the sleeve that the front :> sensor goes in (and which was the reason it broke), figuring this would let :> things line up correctly. Should I worry about the gap? :> : ---------------------------------------------------------------------- :Subject: Re: More Info On Starting Problems
ate: Mon, 22 Mar 1999 23:35:44 -0500 :X-Message-Number: 65 : : Reference mark sensor must be 5mm +/- 0.1 mm
ut from the flywheel, secured with Loctite. The :speed sensor is to be 0.8 mm from the ring gear :teeth. Don't get the speed sensor and reference :mark sensor mixed up. The speed sensor is the :rear one with the D stamped in the housing by it, :the front one is the reference mark sensor with :the B stamped in the housing. See pages 28-14 and :28-15 in your manual. : :Hope that helps,
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I constructed the following sketch for simple reference, so can someone please verify the 0.8mm and 5.0 mm measurements?
Thanks,
Scott