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.