My Chevy Spark 1.2 L 2012 model overheated and blew the head gasket. I replaced the gasket and spark plugs. The engine is turning, but it won't start. Plugs do get petrol. Engine sounds like sewing machine when turning. Any suggestions.
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It sounds like you're lacking compression - I think the sound you're trying to describe is the engine turning much faster than it should be, which would be hte case if there was no resistance. Have you checked that the timing is correct? When you replaced the gasket, did you get the head skimmed? Have you checked the correct torque values for the head bolts?
Nick C
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