Camshaft Identification, Valve Timing: Identification
WARNING: This page is about a different car, the 1999 Volkswagen Jetta, 1998 Volkswagen Jetta, 1997 Volkswagen Jetta, 1996 Volkswagen Passat, and 1996 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
- Cam base diameter: 38 mm
- Identification: stamped numbers and letters between intake and exhaust cams
CAMSHAFT IDENTIFICATION
| Engine codes | 1Z, AHU | AAZ |
|---|---|---|
| No. 1 cylinder (arrow -A-) | W | W |
| No. 2 cylinder (arrow -B-) | 028 F | 028 D |
VALVE TIMING AT 1 MM VALVE LIFT
| Engine codes | 1Z, AHU | AAZ |
|---|---|---|
| Intake opens after TDC | 16° | 6 |
| Intake closes after BDC | 25° | 20° |
| Exhaust opens before BDC | 28° | 25.5° |
| Exhaust closes after TDC | 19° | 6.5° |