Lower Unit Oil

emiliogarza

Cadet
Joined
Jun 1, 2008
Messages
6
I have a 1975 ,85 Hp,Sea Horse that runs beautiful.Can you tell me how to check the LUO?One more small item,has anyone noticed a buzzer that goes on periodically for some unknow reason?
 

sat1962

Petty Officer 2nd Class
Joined
May 26, 2008
Messages
106
Re: Lower Unit Oil

there should be 2 screws on side of lower end open top one there the oil plugs bottom one is for filling it .Buzzer may be motor running hot check your cooling system
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Lower Unit Oil

75 85hp, only has an overheat alarm. remove the bottom SLOTTED drain screw. if water comes first, you need to change the grease. you open the upper vent screw, then refill thru bottom hole, till grease is to the vent hole, close vent screw, then bottom school. everytime you remove these screws, replace the sealing washers.
 
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