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Old 03-13-2015, 05:17 PM   #8
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Join Date: Jan 2013
Location: Houston
Posts: 366
Some vacuum is normal on the oil fill cap. If you can test the pressure - normal is 5 inches. They say if AOS is bad then there is a ton of vacuum.

Also don't run the engine much if you can - they say too much oil coming from a failed AOS can ruin it.
DD summer/winter: 2000 Boxster S
DD spring/fall: 914-6 w/ 3.0L SC Dual Webers - My 914-6 Build/Project Story

Last edited by patssle; 03-13-2015 at 05:20 PM.
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