Identifying Cam Base Diameter - A
WARNING: This page is about a different car, the 2006 Volkswagen Golf, 2005 Volkswagen Jetta, 2005 Volkswagen Golf, 2004 Volkswagen Jetta, and 2004 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.
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:
| No. 4 cylinder - arrow - | 038 R or 858 R |
Valve timing at 1 mm valve lift
| Intake opens after TDC | 15.8 ° |
| Intake closes after BDC | 25.3 ° |
| Exhaust opens BDC | 28.2 ° |
| Exhaust closes before TDC | 18.7 ° |