Before VIN #343314
DISASSEMBLY
1. Remove valves at parallel pins.
2. Remove valves at retainer plates.
For removal procedures, refer to " DISASSEMBLY", "Control Valve Upper Body,". Control Valve Upper Body
INSPECTION
Valve springs
- Check each valve spring for damage and deformation. Also measure free length and outer diameter.
Inspection standard: Refer to Specifications.
- Replace valve springs if deformed or fatigued.
Control valves
- Check sliding surfaces of control valves, sleeves and plugs for damage.
ASSEMBLY
- Install control valves.
For installation procedures, refer to "ASSEMBLY", "Control Valve Upper Body,". Control Valve Upper Body