bravo II engine coupler

[netting one]

I have a 1996 5.7 mercruiser with a bravo II outdrive my guestion might not have a answer but im going throw it out there. How many hours or years before changing a coupler? i changed it about 4 years ago because it stripped out. i have about 600 hrs on the new one but recently have a bad vibraton on sharp turns, also some kind of clicking up at high rpm's. this is a big coupler and is very pricey. Im going to pull the motor and outdrive to inspect all this winter. Also was put in with alignment tool, dead on. thanks

 

[megamark]

Coupler could last indefinitely, problem you have is misalignment, usually from worn-out mounts, can be mounts at stringers and/or bushings at transom mount, alignment needs to be done with alignment tool. Mark

 

[megamark]

Also check gimbal bearing for run-out

 

[TyeeMan]

Vibration at a sharp turns and clicking could indicate some warn or tight u-joints as well.

 

[netting one]

Thanks, i will check the motor mounts this time out and the re alighnment, i have been reading alot about ujoints also. i have replaced the gimbal already also. what is the run out?