Quote:
Originally Posted by Smallblock454
Vario Cam is adjusted by chain lenght - so we don't talk about Vario Cam Plus, which works competely different.
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The chain length is not adjusted (actually not possible). The solenoid move the slack portion of the chain towards the cylinder and away form the cylinder which changes the relationship of the intake cam to the exhaust cam.
Worn chain carriers on the vario cam solenoid won't do this either. They would affect the intake valves but not the exhaust cams as others stated and only one side.
I can't imagine all 6 cylinder having loose connecting rod bolt at the same time so that isn't it either.
My bets go for the main chain tensioner failing, the sprocket is loose on the IMS shaft as other noted, the scavenge pump on the side with the bent intake valve ate something, or the motor spun backwards.
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2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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