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Ask Dominick Your Own Question
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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My 1994 DT115 Suzuki outboard motor's water pump fails after

Customer Question

my 1994 DT115 Suzuki outboard motor's water pump fails after about 45 minutes of use.
I have replaced it twice in 2 weeks. What could be wrong?
Submitted: 2 years ago.
Category: Boat
Expert:  Jeff G. replied 2 years ago.
When it fails what is it doing? What condition is the impeller in? Who's impeller is it, OEM or aftermarket?
Customer: replied 2 years ago.
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Customer: replied 2 years ago.
it is a Suzuki Genuine Part bought a parts dept from a local dealer. impeller looks good but the inside where shaft goes looks real shiney even blueish
Expert:  Jeff G. replied 2 years ago.
The inside of the impeller itself looks bluish? Did you replace the impeller key when changing the impeller? If you have the proper impeller and key then it has to index on the driveshaft and can not move on the driveshaft. If the key is worn or missing then the impeller can turn on the driveshaft.Make sure the key is in place.