Thread: Loose Prop on 60 HP Merc.

I've never heard of that in any motor. Zero play is what I expect in that area. Just my opinion.

Look in your manual I think it covers this. I will look in mine and see

Will check with my buddy , He got this rig in Orlando BPS , Hope he recieved a Manual .

RR - don't know if this helps any, or not .... but, on my old boat's 1984 70hp Yammy, which had a alum prop with it when purchased - I put a cut down SS Merc prop, that I bought from a guy that did that sort of thing. It came with a spacer shim, that went on the shaft before the prop ... but, still could be moved "in & out about 1/4 of an inch", even after the castle nut/cotter pin was put on. It worked fine for over 10yrs, and was still working just fine when I sold the outfit.
I'd go out & check my 1999 90HP Merc prop, to see if it "moves" any ... but it's too dang HOT/HUMID Rofl (which is the only reason I'm sitting here, and not out fishing Doh )

... cp

Most props move in & out some. Most people never check , they just spin em. The prop shaft will have to have a little play to shift. Your prop is tight it's the shaft that's moving a little. NORMAL!!!!!

Yes some play is normal. The important thing here is when the prop is pushed all the way in it should not hit the lower unit casing. There is a thrust washer that goes on ahead of the prop to prevent this.

Just checked mine. 1998 90hp merc and i can push it in some but not much.

I know my 85 150 hp yammie hammer has only about 1/32 movement in and out @ 50 pounds torque on the prop nut. The shop that serviced the Tracker said that the 2011 60 hp merc's had a floating prop ???? and 1/4 inch is normal with these ??? That seems like a lot .