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Tan, MerCruiser Certified Technician
Category: Boat
Satisfied Customers: 10972
Experience:  40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.
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Gas comes out hole in back of fuel pump when you pump the

Customer Question

gas comes out hole in back of fuel pump when you pump the bulb
Submitted: 2 years ago.
Category: Boat
Expert:  Tan replied 2 years ago.

The fuel pump has a bad diaphram or gaskets are misaligned.

Expert:  Tan replied 2 years ago.

Did you rebuild the pump your self? Did you inspect all the pump components and look for cracks?

The only reason the pump will leak through that hole is a bad diaphram or a misaligned gasket.

Did you do a complete kit or just the diaphram gasket?

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