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Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 16096
Experience:  Degree in Marine Technology. Gas and diesel marine mechanic.
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My mercruiser mag 496 has hydrolocked twice. I am going to

Customer Question

my mercruiser mag 496 has hydrolocked twice . I am going to have the flappers inspected . is it worthwhile to purchase external exhaust flappers and if so what type or brand?
Submitted: 2 years ago.
Category: Boat
Expert:  Jason replied 2 years ago.

Good morning, my name is ***** ***** am I speaking with?

Under what conditions did the engine hydrolock? Was there water in both banks of cylinders, or just 1 side?