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Help - Oily Spark Plugs
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<blockquote data-quote="mangkor" data-source="post: 317997" data-attributes="member: 14483"><p>I see from the photo attached, there are might two different situation down here</p><p></p><p>First the electrode is a bit oily, indicating incomplete combustion due to oil leak somewhere in the combustion chamber. It could be excessive clearance at piston or piston rings or worn out valve stem seals. Simply said, the engine "sudah makan minyak hitam". - Prepare to dig extra money to overhaul the engine.</p><p></p><p>Secondly, the spark plug insulator is totally soaked with engine oil. It must be leaky valve cover gasket. Get the gasket replaced or somewhat the engine might suffer misfiring in due course.</p></blockquote><p></p>
[QUOTE="mangkor, post: 317997, member: 14483"] I see from the photo attached, there are might two different situation down here First the electrode is a bit oily, indicating incomplete combustion due to oil leak somewhere in the combustion chamber. It could be excessive clearance at piston or piston rings or worn out valve stem seals. Simply said, the engine "sudah makan minyak hitam". - Prepare to dig extra money to overhaul the engine. Secondly, the spark plug insulator is totally soaked with engine oil. It must be leaky valve cover gasket. Get the gasket replaced or somewhat the engine might suffer misfiring in due course. [/QUOTE]
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