hey guys went and ran the boat yesterday and had a knocking noise coming from what sounded like the end of the shaft anyone got any ideas. It almost sounds like im hitting a stick under the water every now and then???

Does your prop have slack in it? Iis the knocking when you lift the prop in and out the water? If this is the case there is no need to worry.

No the prop is floating properly this is happening while its running I redid the prop just to be sure per the GD specs. Its not the normal whiz and pop it actually feels like im hitting sticks while im running.

No its not a revolution thing as far as i can tell, but there is some vibration but its always been there i dont think its anything out of the ordinary, it almost feels like the shaft is bouncing or in the bushing or something but i have no clue

Check your U-joint it may be going out and may be trying to cease up thus causing it to pop

how do i check the u Joint b/c that was an issue i was pondering

Start the motor and half throttle it and listen for the popping noise, on the other hand grease the grease zerk on the u joint and see if that hleps make sure keeper pin is tight on the MOtor side of the shaft and make sure its tight on the shaft part going into your hoising, they maybe slipping. Try that

ok ill try that tommorow im pretty sure that pin on the motor side is tight but ill check it tommorow
what would the symptoms be if the lower bushing is worn?

You'll have excessive amounts of grease coming out and if you grab the prop and you can move it up and down it has play in it

Come on Giga, jump in and save your man. The GTR owners aint looking.





You would have play in your prop if your bushings were worn out.

I just replaced the seals on the lower end, and ive got a little bit of play on the end, but im wondering if a loose bushing could cause this knocking?

could be a bent shaft, i've had that happen before, not real sure this is interesting

im going to pull the shaft tommorow, and see whats going on there, the weird thing is it just started doing this. Ive taken the thing out two times since i put a new prop on, and i let a buddy that i trust borrow it and he swears he didnt hit anything so i really dont think he did. i just hope its not a shaft

Hey and if it is, they are cheap i mean cheap. but just go over everything that you have first and make sure everything is greased!

Hey guys, thanks for all the help ill let ya know what i come up with tommorow

I've seen longtails knock if they needed grease in the shaft log

Guys between the rain and honey do's i didnt even get to check anything out hopefully i can get to it tommorow

take your time and don't get in a rush, do it right the first time

well guys i think ive come to my conclusion, i think the end of the shaft is bent it looks out of balance while its running. So i guess ill order the shaft and bushing tommorow, any tips or tricks or advice on the removal of the shaft.

Easiest way i found was to remove the motor and tap it out with a hammer and block of wood