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ENGINE 25 OVERHAUL 8. Place a straight edge across pump body and using feeler gauges, measure end-float of outer 9. Check drive shaft bush in pump cover for signs of scoring and wear. 10. Renew oil pump and stiffener plate assembly if excessive scoring exists or clearances exceed 11. Lubricate pump rotors and drive shaft bush with engine oil. 12. Fit rotors ensuring reference marks are aligned and identification mark on inner rotor is facing 13. Fit cover to pump, fit 5 new screws and tighten by diagonal selection to 6 Nm (4.5 lbf.ft) . 14. Check that pump rotors rotate freely. Oil pressure relief valve 1. Remove and discard oil pressure relief valve plug. 2. Remove spring and relief valve plunger. scoring and corrosion. NOTE: Light scoring and corrosion may be 5. Check spring for distortion, check free length of spring: CAUTION: Renew relief valve as an 6. Lubricate valve plunger and seating. plug. CAUTION: Do not attempt to fit original 9. Fit plug and tighten to 23 Nm (17 lbf.ft) . |