Identifying Cam Base Diameter - A

Fig 1: Identifying Cam Base Diameter - A

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Camshaft identification, valve timing

Identification

• Cam base diameter: a = 52.8 mm
• Identification by stamped numbers and letters on face of No. 4 cylinder exhaust cam:

Valve timing at 1 mm valve lift