1978 Mercury 80hp outboard

Down South

Petty Officer 1st Class
Joined
Aug 7, 2001
Messages
333
Re: 1978 Mercury 80hp outboard

Was water coming from the from it before you replaced the water pump. Reguardless there may be trash blocking the flow. The pee hole is easy to stop up. Sometimes the fitting on the side of the block that the hose for the telltail hooks up to plugs too. Try cleaning out the pee hole. If that doesn't work then remove the fitting from the side of the block and try it again. If still no water then you have internal blockage or something went wrong with the water pump change out.<br /><br />Good luck :)
 

lanaangel

Recruit
Joined
May 26, 2002
Messages
2
Re: 1978 Mercury 80hp outboard

On my motor is there a thermostat? I blow through the hose and can hear air coming from below. Where is the water pump located on my motor? Thanks
 
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