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Message: <blockquote data-quote="machinehead" data-source="post: 102885" data-attributes="member: 1443">kelvinp,Your problem is far from over. Few months ago my M43 engine had similar symptom.First suspect was the AFM. Remove and dismantle .Clean with W-40 and scrape dirt wih big screwdriver. Flap flip with ease wih a light push.Tomorrow morning same problem. Then suspect ICV. Remove and clean Problem still persist. Remove trottle body and dismantle every piece and  clean with petrol.No help either. Final test- the ultimate test (head casket).Remove spark plug and examine-2nd &3rd plgs wet. Bad News. Wait for two hours to cool the engine in order to detect the sysmpton. One person to crank the engine and I notice water shooting out from the spark plug hole. CONFIRMED -head casket. Discuss with mechanic I did not encounter any overheating problem before and he told me it could be the life of the casket.(167,000KM)Admission to the workshop the next day.2nd day,received call from mechanic. More bad news- cylinder Head crack. Heart attack comming. Rush to workshop to check and confirm the findings.Finally found a used M43 cylinder head with cam etc,etc and cost me RM1800.The whole engine cost RM2,700. I need to retain my engine no. so I opt for the top part.Change my radiator,thermostat, water pump,hoses for preventive measure.The enging now runs smoother and quieter. Hope that you don't have to do the Ultimate test. Good luck to you.</blockquote>