slipping prop

[demmer]

can anyone describe the symptoms of "SLIPPING" prop? Thanks.

 

[chuckz]

Re: slipping prop

What you didn't like my last answer?<br />What you're asking about is a spun prop. The blade portion of a prop is not rigidly connected to the hub. It is connected through a rubber bushing. This is done so if the prop strikes something it slips a little. Over time the fit can loosen the the prop starts to slip under normal loads.<br /><br />To test your prop for slipping, but a permanent marker line between the hub and the baldes. Run the boat. If the prop is slipping, the line will no longer be lined up when you look at it.<br /><br />Better answer?<br /><br />Actually, I was coming back to your first post to give you the real answer when I saw this post. Sometimes we have to have a little fun

 

[Barnacle_Bill]

Re: slipping prop

The motor will rev up in gear but you don't go anywhere fast.

 

[demmer]

Re: slipping prop

Thanks guys for the info. Yes, I think I do have symptoms of a slipping(spun) prop. Just before I plane the boat out, the motor will captivate on me, or when I turn, it will rev up on me, or when it does plane and I go WOT it will rev up on me, not all the time though. Yes, I have heard the "banging" noise too. Scared the h*** out of me. Sounded like I hit a submerged log. I was in deep water.Will a spun prop affect the speed of the boat? I'll try marking the hub and prop and see what I get.

 

[heybaylor]

Re: slipping prop

with the mark , you will know if it is slipping on the hub.<br />but if it just "slips as you are about to plane , or in corners ...then you maybe too high on the transom..thats called.."blowing out "

 

[Silvertip]

Re: slipping prop

Of course a spun hub will affect the speed of the boat. The engine is running like h*** but the prop blades are only running at a fraction of the engine rpm. Sort of like slipping the clutch on the manual transmission car.