E 350 1 Ton Van V10-6.8L VIN S (1997)
Valve Body: Testing and Inspection
1. Thoroughly clean all parts, except the non-metallic check balls, in clean solvent and blow dry them with moisture-free compressed air.
2. Inspect all valve and plunger bores for scores. Check all fluid passages for obstructions. Inspect all mating surfaces for burrs and scores.
3. Inspect all springs for distortion. Check all valves and plungers for free movement in their respective bores. Valves and plungers, when dry, must
fall from their own weight in their respective bores.
4. Roll the valves on a flat surface to check for bent condition.