1979 evinrude 115 hp lower unit grease

[mrgixser]

hello! i am new to boating and i have a 1979 115 hp evinrude. i was wondering if anyone could explain how to change the lower unit grease,and how much does it hold? and also is the fuel-oil mixture supposed to be 50:1 ratio? thanx

 

[KYHunter2]

Re: 1979 evinrude 115 hp lower unit grease

Hi, <br /> 50-1 is correct. Drain lower unit and inspect for a milky color which means water intrusion. <br /> If it looks like old / dirty oil , should be fine. <br /> If you find some metal shavings/ flakes, on the lower magnetic screw , its normal. <br /> I'm not sure how much yours holds .<br /> It would be in the manual for your motor. <br /> Fill from bottom hole, until it comes out the top hole.<br /> Replace the washers / seals on both screws/ plugs. <br /> Good-Luck,<br /> KYHunter

 

[ezeke]

Re: 1979 evinrude 115 hp lower unit grease

The gearcase holds 26.6 ounces, dry. Drain the gearcase with the motor in neutral and in running position. Give it 15-20 minutes or longer if it is cold out. Turn the prop occasionally to break up air pockets in the old oil.<br /><br />When the oil comes out of the top hole, replace that top plug first before removing your oil supply, you will not lose as much trying to get the lower plug back in.

 

[mrgixser]

Re: 1979 evinrude 115 hp lower unit grease

thanx for the great advice and quick responses.