98 merc 150 efi outboard oil issue

fishinman123

Cadet
Joined
Dec 12, 2008
Messages
6
boat runs great except last time out noticed oil dripping into my boat when i trimmed motor up. removed cover, lowered engine back down and started, found
brass fitting that sits in-between incoming oil hose from boat tank to internal reservoir on top was gently squirting oil out in tiny bursts made the mess. I replaced this part about a year ago because my oil alarm was going off not keeping the motor reservoir full. Till now no problems. Any advise or the function of this fitting would be helpfull.
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,931
Re: 98 merc 150 efi outboard oil issue

Tank is overpressurizing and not bleeding down due to sticky crankcase check valve. Replace it with part # 21-8781051
 

fishinman123

Cadet
Joined
Dec 12, 2008
Messages
6
Re: 98 merc 150 efi outboard oil issue

thanks for the advise I bought the part and I'll give her a workout on Saturday after installing.
 
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