how to change engine oil

Steve Gael

Recruit
Joined
Aug 17, 2014
Messages
2
I just bought a boat with mercury 140 hp motor, I don't know how to change the motor oil, any help will help to find the drain and refilled bolts. Thank you.
 

Starcraft5834

Lieutenant Commander
Joined
Jun 2, 2013
Messages
1,677
What year is engine? Mines an 87. Oil pan and drain bolt under engine on mine.. others you have to manually pump out
 

Steve Gael

Recruit
Joined
Aug 17, 2014
Messages
2
I don't know none about boats, and I look for oil drain and refill bolts I din't see it at all, I did find the lower unit bolts, but the engine oil did't see it. the year no idea what year is this engine i look for the year on the sides of the engine didn't see it eider. if you have more info please send, thank you.
 

midcarolina

Chief Petty Officer
Joined
Jul 16, 2013
Messages
631
I would think your registration card or title for the motor would have the year of manufacture If nothing else post up a couple photo's of the motor.......use photo bucket or any other free image hosting service to post pics.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,644
Is that motor a Mercury inline 6 outboard or a Mercruiser inline 4 Sterndrive? Are you trying to change the gear oil, engine oil or both?
 
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