Gear oil in 1970 johnson 9.5

Oldsalt53

Cadet
Joined
Apr 16, 2011
Messages
6
While removing the lower unit, I dumped out some of the gear oil. I noticed a screw on the side for oil filling. Does the motor have to be on its side to fill the oil, or can it be on the boat? Thanks!!

MIke
 

Jon Boat Jim

Petty Officer 3rd Class
Joined
Mar 19, 2011
Messages
75
Re: Gear oil in 1970 johnson 9.5

It's best to leave the motor in the vertical position and pump the oil in the lower screw until it come out of the upper screw (looks just like the same screw as the lower one). Then replace the upper screw....quickly unscrew the pump and replace the lower screw. Make sure that you replace the nylon washer behind both screws. The pump kit can usually be bought at the same places as the oil.
 

AlTn

Commander
Joined
Mar 9, 2010
Messages
2,813
Re: Gear oil in 1970 johnson 9.5

Salt..you shouldn'T have lost oil just removing the lower unit...is there something else in need of fixin'?
 

Oldsalt53

Cadet
Joined
Apr 16, 2011
Messages
6
Re: Gear oil in 1970 johnson 9.5

without thinking after I removed the water pump and impeller, I inverted the lower unit to see if the screen was clogged. Only a little bit drained out, but I decided to let the rest drain into a bucket and replace it with new oil. I would estimate only about 1/2 cup of oil came out. I've never attempted outboard repair, so mostly what I do is by trial and error. Right now, mostly error!

Mike
 

tx1961whaler

Vice Admiral
Joined
May 31, 2008
Messages
5,197
Re: Gear oil in 1970 johnson 9.5

Just don't take out the phillips head screw on the side of the gearcase. That isn't a drain screw.
 
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