how much oil in gear box

zeber

Cadet
Joined
Jan 3, 2010
Messages
12
i have a jonhson 25 hp motor how much gear oil do i need to put in, do i feel it to the all the way full or what thanks
 

kbait

Commander
Joined
Nov 13, 2007
Messages
2,469
Re: how much oil in gear box

Add from bottom hole until it comes out of top hole. Fill 'er up!
 

robert graham

Admiral
Joined
Apr 16, 2009
Messages
6,908
Re: how much oil in gear box

Pump oil in the bottom hole until it starts to come out the top hole, replace plugs, oil level is just right. Don't over fill, need room for expansion. Good Luck!
 

Fl_Richard

Lieutenant
Joined
Jan 21, 2005
Messages
1,428
Re: how much oil in gear box

My 150 takes 33 ounces. I'm sure one 32 ounce bottle will be ample. Buy the good stuff.
 

ezeke

Supreme Mariner
Joined
Sep 19, 2003
Messages
12,532
Re: how much oil in gear box

The manual says 8.3 ounces, "Drain and refill every 100 hours of operation or once each season, whichever occurs first." Page 1-50; manual #394607.
 

1946Zephyr

Vice Admiral
Joined
Oct 21, 2008
Messages
5,556
Re: how much oil in gear box

One little tip:

when you see oil run out the top hole, put the plug in tight and you won't loose any oil when you remove the filler hose from the bottom. :cool:
 
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