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EXHAUST MANIFOLD AND THREE WAY CATALYST EM-33 < REMOVAL AND INSTALLATION > C D E F G H I J K L M A EM N P O 8. Remove the air fuel ratio (A/F) sensor 1 using Tool, (if necessary). CAUTION: • Clean exhaust manifold and three way catalyst port securing air fuel ratio (A/F) sensor 1 with anti-seize lubricant, or equivalent. • Be careful not to damage air fuel ratio (A/F) sensor. • Discard any air fuel ratio (A/F) sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; replace with a new one. 9. Detach front exhaust tube from exhaust manifold and three way catalyst. Discard the gasket. Refer to . 10. Remove the exhaust manifold cover (upper). reverse order as shown. 12. Remove exhaust manifold and three way catalyst. INSPECTION AFTER REMOVAL Surface Distortion • Check the flatness of exhaust manifold and three way catalyst using suitable tools (A/B). NOTE: Place the suitable tool (A) diagonally and measure in several loca- tions. INSTALLATION Exhaust Manifold 1. Install studs in cylinder head and exhaust manifold (if removed). Then tighten to specification. CAUTION: Do not reuse cylinder head gasket or exhaust manifold studs. Tool numbers : KV991J0050 (J-44626) AWBIA1909ZZ Limit : 0.3 mm (0.012 in) ALBIA0828GB |