Subject: Marking on Distributor IS NOT Rotor Position for Number One Cylinder Models: 911 Turbo 1978
Bulletin Number: 78 – 05
From start of 1978 model production, all 3.3 Itr Turbo engines have distributors on which marking (X) does not correspond to number one cylinder position.
This applies to the following distributors
Part No. Engine Type
930.602.101.07 930/61 U.S.A
930.602.101.08 930/3 California
When installing these distributors have engine at TDC number 1 cylinder and point rotor to middle of Bosch number on side of housing.
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