Found some more time today so I removed the cylinder head cover for 4-6. Looks like 10,000 -12,000 mile oil changes with Mobil 1 at least kept the engine clean:
Another blow down check verified all valves are bent since air flows from both the exhaust ports and the intake manifold:
All chains are intact and working:
I'm guessing the gear on the IMS must have slipped 360 degrees. This means a complete tear down is needed.
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1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
Last edited by Paul; 04-17-2011 at 11:31 AM.
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