1968 Johnson SC10S 1.5Hp impeller & gear oil

[winxsd]

I have just aquired this little motor, which was in a garage for over 15 years without running. I put gas in it and it started after just a few pulls. I am not noticing any water coming out the exhaust ports, so I think I'll change the impeller. Is this easy to do on these little motors? I've changed an impeller on a different outboard once before. Also, does anyone know what type of lower unit gear oil this motor requires?

Thanks,
winxsd

 

[F_R]

Re: 1968 Johnson SC10S 1.5Hp impeller & gear oil

The pump probably is about as easy as it gets. Remove lower unit, change pump, reinstall lower unit. If it has a stainless steel pump liner, make sure it isn't deformed. Those motors put out a very small amount of spray, sometimes hard to detect.

Gear oil is regular 80-90 weight Outboard Gear oil.

 

[mettyfish]

Re: 1968 Johnson SC10S 1.5Hp impeller & gear oil

I have one of these and FR is right. They only put out a spray. Hold your hand by the holes and you can tell. Good luck and those are fun little motors. Mettyfish