Valve Body Assembly: Inspection

Remove gasket from lower valve body. Note check ball, pin, spring and retainer location. Hold plate to upper valve bodies to ensure check balls do not fall out. Remove plate and gasket and note check ball, pin and retainer locations on upper valve bodies. Clean all parts in solvent. Dry with compressed air. Ensure all valve body passages are clear. Inspect valves for scoring or roughness. Ensure valves slide freely in bores. Inspect valve springs for damage, squareness and collapsed coils. Measure spring free length and outer diameter. Replace spring if not within specification. See appropriate table under VALVE BODY SPRING SPECIFICATIONS .