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5-37 ENG • Install the valve into the cylinder head. seat are evenly polished, then clean off all of NOTE: For the best lapping results, lightly tap the valve • Apply a fine lapping compound to the valve face and repeat the above steps. • After every lapping procedure, be sure to clean off all of the lapping compound from the valve • Apply Mechanic’s blueing dye (Dykem) b onto the valve face. • Install the valve into the cylinder head. onto the valve seat to make a clear impression. • Measure the valve seat width c again. If the valve seat width is out of specification, reface 11. Measure: • Valve spring free length a Out of specification → Replace the valve spring. Valve spring free length: Intake: 36.51 mm (1.44 in) Exhaust: 37.92 mm (1.49 in) |