300 hp Merc Cruiser Bravo III props with 2nd stripped spline shaft

[Captain James Morris]

About 2.5 years ago, I purchased a used 1999 27 foot Rinker with very few hours on Merc Cruiser engine with Bravo III props. Really enjoy boat but have already replaced the spline shaft connected to outdrive two times. The first occurred late last summer because of inadequate greasing. Since this was a costly repair, I've ensured that this type of maintenance is completed. But to no avail, the spline shaft was stripped again a few days ago. I had just recently had the boat in to have the shifting cable replaced. The mechanics had the spline shaft exposed when they had to reattach the outdrive. They even indicated to me that they had difficulty reattaching the outdrive. I had just taken the boat out after this repair was made when the engine cut out on me again. I didn't hit anything and I was operating the engine at a very low rmp. I do not understand how this could have happened again? Could this stripping have occurred if the outdrive was not realigned properly? Or do I just have a "lemon?"

 

[akriverrat]

Re: 300 hp Merc Cruiser Bravo III props with 2nd stripped spline shaft

if mechanics had problems remounting outdrive they should have stopped. contacted you and advised you it needed extra work that you didn't autorize. merc says to check alignment any time the outdrive off.

 

[Bondo]

Re: 300 hp Merc Cruiser Bravo III props with 2nd stripped spline shaft

I Agree.....<br />I'd be looking for a New Mechanic,+ a Lawyer.....<br />I'll Bet your problem started Before this shaft was installed last summer.... When it was installed the gimbal alignment Should have been Checked.... I'll also Bet that the outdrive went on Hard that time too.... A Sure Sign of an Alignment Problem..... This Marina is Robbing you Blind....<br />Your boat is not a lemon... Your Mechanic Is....