I can’t speak to the left side but once had a cam plug fall out of the right side of the motor and it pumped quarts of oil out in a matter of seconds. Odd that you can run without them. That being said if they popes out it’s more than likely a pressure problem which points to the AOS. Id replace the AOS and the plugs (MAKE SURE they are well hammered in, not like your photo) and then send it.
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1997 Boxster 4.2L Audi V8 Bi-Turbo
2003 911 C2
NASA HPDE Instructor
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