Inspection & Reassembly
- Check jet valve head and seat for damage and ensure valve slides smoothly in body. Check that no side play exists. Replace jet valve as an assembly if necessary.
- Measure valve stem diameter and face angle. Check jet valve spring free length, out-of-square, and installed height. Replace jet valve as an assembly if not within specification. See VALVES & VALVE SPRINGS table.
- To reassemble, install new stem seal using Seal Installer (MD998308-01). Coat valve stem with oil and install. Ensure valve slides smoothly. Install remaining components.