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Usually a blown head gasket will allow cooling water to enter the affected cylinder. This can be detected by observing the spark plugs for water on the electrode, or a clean washed appearance. A gasket blown between cylinders, may show no sign of water, but depending on size of the engine, may be hard, or impossible to start. The quickest, and most sure way to find out, is a compression reading of all cylinders.

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Q: Signs of a blown head gasket on a outboard boat motor?
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Can a car still start with a blown head gasket or motor?

Sure it will start with a blown head gasket. But, if you continue to run this engine with a blown head gasket you will destroy the engine.


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