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Tan, MerCruiser Certified Technician
Category: Boat
Satisfied Customers: 11052
Experience:  40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.
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Tan my name is .I recently changed the gear box seals on my

Customer Question

Hi Tan my name is ***** ***** changed the gear box seals on my 25 hp evinrude 1996 HE L EOR, smae time cjhecked water pump looked ok reassembled and tested had cooling water from outlet, restarted 2 days later no water at outlet is it possible for the thermostat to suddenly die, if the thermostat has frozen shut would this stop the water flow regards ken
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Submitted: 1 year ago.
Category: Boat
Expert:  Tan replied 1 year ago.

Hello Ken.

Thermostat won't affect the water outlet discharge.

Anytime you have the lower unit off and the pump disassembled you knock corrosion loose. The corrosion can get in the outlet can clog. Remove the outlet hose from the engine nipple # ***** where it attaches to the engine. Clear the fitting and start engine you should have water. If you do then reattach hose. That should fix your issue. If it doesn't post back with findings.