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ENGINE - V8 OVERHAUL 12-2-65 20. Lubricate new valve guide with engine oil and with tapered portion of guide leading, insert Note: Service valve guides are 0.025 mm 21. Fully fit guide using tool LRT-12-039A and distance piece tool LRT-12-208 l Valve guide installed height 'A' = 15.00 mm 22. Ream valve guide to 8.70 mm (0.342 in). cylinder head on stands. 24. Check valve seat insert for pitting, burning, cracks and wear. Replace as necessary. 25. Remove worn valve seat. CAUTION: Take care not to damage the 26. Heat cylinder head evenly to approximately 120 ° C (250 ° F). WARNING: Handle the hot cylinder head 27. Using a suitable mandrel, press new insert fully into counterbore. 28. Allow cylinder head to air cool. CAUTION: Renew worn valve guides and/or 29. Recut valve seat in head and lap in valves using fine paste. 30. Coat valve with a small quantity of engineer's blue, insert valve and press into position |