MAINTENANCE
UNDER BONNET MAINTENANCE
RENEW SPARK PLUGS
CHECK COOLING, INTERCOOLER AND HEATER SYSTEMS FOR LEAKS, HOSES FOR SECURITY AND CONDITION. TOP UP AS NECESSARY.
CAUTION: Take great care when fitting spark plugs not to cross-thread plug, otherwise costly damage to cylinder head will result. It is essential that correct type of spark plugs is fitted. Incorrect grade of plugs may lead to piston overheating and engine failure. Only use approved spark plugs, use of unapproved spark plugs may cause the misfire detection system to malfunction.
CAUTION: Cooling system hoses should be changed at first signs of deterioration.
Remove 1. Disconnect battery negative lead. 2. Remove H.T. leads from spark plugs. NOTE: Note lead connections to ensure correct re-assembly. CAUTION: To avoid damage to H.T. leads, remove them by pulling the rubber boot NOT the lead. 3. Remove plugs and washers. 4. Ensure plugs are set to correct gap: 1.0 ± 0.05 mm (0.040 ± 0.002 in). See FUEL SYSTEM, Repair. NOTE: Do not attempt to clean or adjust gaps on spark plugs fitted after 99MY. If a spark plug problem exists, try substituting the defective spark plug with a new one. 5. Fit new spark plugs and washers. Tighten to 20 Nm (15 lbf ft) 6. Ensure H.T. leads are correctly refitted. See FUEL SYSTEM, Repair. 7. Reconnect battery negative lead.
MAINTENANCE
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