mattfish11
Seaman Apprentice
- Joined
- Apr 17, 2006
- Messages
- 33
Ok first off, this is a mid-size Mercury 40HP 2 stroke.
The past couple times out I've noticed a faint rattle or ringing of my motor at idle. It immediately stops when I put the motor in gear and doesn't recur until I'm back in idle.
I've narrowed it down to the lower unit and noticed there's some play in there, a tiny bit of play between the spline of the lower unit and the prop housing. I've also noticed a tiny bit of play in the shaft of the spline as it goes into the lower unit.
I'm assuming this should looked at by a professional? Is there anything you guys can think of that might be a quick fix (like - duh! should have thought of that). I've tightened the prop down good - and that doesn't eliminate the problem.
Any help here?!?
Thanks!
Matt
The past couple times out I've noticed a faint rattle or ringing of my motor at idle. It immediately stops when I put the motor in gear and doesn't recur until I'm back in idle.
I've narrowed it down to the lower unit and noticed there's some play in there, a tiny bit of play between the spline of the lower unit and the prop housing. I've also noticed a tiny bit of play in the shaft of the spline as it goes into the lower unit.
I'm assuming this should looked at by a professional? Is there anything you guys can think of that might be a quick fix (like - duh! should have thought of that). I've tightened the prop down good - and that doesn't eliminate the problem.
Any help here?!?
Thanks!
Matt
