Calculating the maximum allowable reworking dimension
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 Volkswagen Jetta, 2002 Volkswagen GTI, 2001 Volkswagen Jetta, 2001 Volkswagen GTI, and 2000 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
- Insert valve and press firmly against valve seat.
NOTE:
- If the valve is being replaced during repairs, use a new valve for measuring.
- Measure distance - a - between valve stem end and upper edge of cylinder head.
- Calculate maximum allowable reworking dimension from measured distance and minimum dimension.
Minimum dimensions:
- Intake valve: 33.9 mm
- Exhaust valve: 34.1 mm
Example:
Measured distance - a - minus minimum dimension = max. allowable reworking dimension.
| - | Measured distance - a - minimum dimension | 34.8 34.1 | mm mm |
| = | max. allow. rework. dimension * See note | 0.7 | mm |
*.