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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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I have an 1985 Mariner 50hp, 4cyl, 2str. The water pump spurts

Customer Question

I have an 1985 Mariner 50hp, 4cyl, 2str. The water pump spurts water, is not an even flow and sometimes does not pump any water. Has new impeller, housing and gaskets. What could be the problem?
Submitted: 1 year ago.
Category: Boat
Expert:  Charles replied 1 year ago.
Hello, my name is***** you for allowing me to assist you today.
When you replaced the old impeller, was all of the blades intact?
How are you providing water to the engine?
Customer: replied 1 year ago.
They were wore out, like weathered, don't think they were melted. I have used a tub of water and the ears.
Expert:  Charles replied 1 year ago.
Have you made sure that parts 27 and 28 are installed in the water pump housing?
Customer: replied 1 year ago.
I do not have the parts guide with me at this time, what is 27 and 28?
Expert:  Charles replied 1 year ago.
Copy and paste the link i sent you. It is the upper seal and guide inside the housing.
Customer: replied 1 year ago.
Will look, any other thoughts? If not thanks!
Expert:  Charles replied 1 year ago.
When you had it on the hose, how was the water flow out of the prop?
Customer: replied 1 year ago.
Steady, seemed like all the water was coming out of the prop
Expert:  Charles replied 1 year ago.
Remove the hose from the block and start the engine, is the water flow better there or still hit and miss?
Is this a salt water motor?
Customer: replied 1 year ago.
Fresh water only, I will have to work on it tomorrow im in the house ready to call it a day, will get back tomorrow, thank you
Expert:  Charles replied 1 year ago.
Your welcome. I will be online after 4 PM CST tomorrow.

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