Subject: Valve Clearance Models: 911 1979
Bulletin Number: 78 – 06
1979 Porsche 911 vehicles have an additional Emission Label inside the engine compartment lid
Valve clearance is listed on this label as 0.004” + 0.002” in.
For maximum performance, the adjustment should be 0.004 in, without the tolerance for both intake and exhaust valves.
