Guests - If You want access to member only forums on HSO. You will gain access only when you Sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
Cody-A

1959 Johnson Prop Slip...

14 posts in this topic

I recently bought a 1959 Johnson motor with a prop slip. It currently only goes 4 Mph. It loses it at High RPM's. Does anyone have any ideas on what is wrong with it?

Thanks a lot!

Share this post


Link to post
Share on other sites

Do you know what a shear pin is? Have you checked it? pull the prop off,a hole in the shaft should have a brass pin in it that is lond enough to fit in a indent in the prop. pin is about 1-1&1/4 inches long.

Share this post


Link to post
Share on other sites

Yes I am aware of what a Sheer Pin, it is in perfect condition. Thanks though.

Share this post


Link to post
Share on other sites

Spun hub? Take a Sharpie or White out and put a mark that extends across the prop and hub of the prop. Go run it. If the marks are no longer lined up, your hub is spun. You can get it fixed or just buy a new prop.

Share this post


Link to post
Share on other sites

if that doesnt check out ,wondering if you have a 16 inch motor on a 20 inch transom///?

Share this post


Link to post
Share on other sites

MM I was going to GUESS that but Do sheared props have the inserts?? I guess I dont need to ask you said it. but I remember once replacing a sheared prop, with the shop saying their not repairable??

Share this post


Link to post
Share on other sites

Ah.. now that I think about it some more you're right.. no hub on a shear pin motor (the whole point of the hub was to go to a splined prop shaft and get rid of the shear pin). Good catch Sparcebag.

Hm... since it's not that, it could be like primetime 49 said, a short shaft motor on a long shaft boat, or perhaps lower unit issues.

What does your motor do in reverse?

marine_man

Share this post


Link to post
Share on other sites

You're assumptions are correct, no hub to slip on that motor.

Has the gear lube been drained and examined? Any shavings or burned smell? I've seen the drive shaft splines (going into the powerhead) slip also.

Share this post


Link to post
Share on other sites

Thanks for all the input guys! I took it out this weekend and it starts right up, and I was going about a solid 4 mph's. But when I took it out of the water the lower unit was leaking oil. I think my problem is pretty big. The lower unit may be cracked or something pretty bad. Not sure what to do now. Thanks again!

Share this post


Link to post
Share on other sites

I'd take it in.. have them pressure test it and see where it goes from there.

Good Luck!

marine_man

Share this post


Link to post
Share on other sites

I hate to disagree with the experts here but I'm sure the older props with the shear pin hub used a rubber cushion inside the prop. I have owned these motors and have personally spun the hub. At least have that checked out.

You may have other issues as well with the oil leaking and that absolutely needs to be addressed. A new lower unit will cost more than the motor is worth.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • Hey @rl_sd who had the meat on sale? Looks great btw
    • chicks maybe exploring what the beak is for
    •   You can also be a little creative with the leftover meat.  For example: The wife and I will whip up a spanish rice mixed in with the pork and make Enchiladas or heat the pork on the stove top, mix in some BBQ sauce and make quesadillas (the grandkids love them).   There's more to pulled pork than sandwiches.  
    • that is great!!!!   good for you guys!!!!
    • Your right rs_ld,  a full smoker is the way to go, leftovers can always be frozen and re heated..good eats.
    • 195 degrees on these butts. Like they say, if you are going to spend 9 hrs smoking 5# of meat, you just as well spend the same amount of time smoking 45#. The local grocery had these on sale so had a few friends take the offer to throw a roast on for them. Took two off early for slicing  Pulling the rest cost them each a beer though!
    • Very good stuff, kinda tasted like ribs with this recipe,  I'll keep at it til I find the right one!! Good luck moon lake!!
    • It will be interesting to see how the Warriors react in free agency.  Will they be able to keep the team together?  It seems like all these guys value winning above a paycheck so they might be willing to sign deals that will still allow the team flexibility to keep good role players around them.    
    • That's too bad.  The fish were ON FIRE up there.  I went out with my dad and uncle with our tiller walleye boat, and hardly a clue what we were doing, and we crushed them!  Ended up with 118 pounds of packaged salmon fillets.  I think I can honestly say it was the most fun fishing trip I've had in my life.  Here's my biggest of the trip, 25 pounds.    
    •   It's amazing to see a thoroughly talented team like Cleveland just get dissected like a back alley pick up team. I agree--GS will be THE team to beat for several more years if they keep their nucleus. I think we can make them sweat a little bit now, though, so that's pretty exciting for a change! 
  • Our Sponsors