Brand New Alpha 1 Gen 2 Outdrive - Noise when turned hard to port or starboard.

[ronbacardi]

Hello,
My Alpha 1 gen 2 outdrive packed it in 2 summers ago. I installed a brand new complete OEM Alpha 1 Gen 2 outdrive along with new gimbal bearing last summer. Checked alignment numerous times and seemed perfect every time. When backing away from the dock I heard this knocking when wheel was turned fully to port or starboard. Noise goes away when turned away from full lock. Drive is trimmed fully down and noise seems to go away when trimmed up slightly off of full down position. The boat is a 1997 Searay 215 EC.
I posted a video below of the noise while on the trailer in neutral. You can hear the knocking each time I turn full over to each side.
Is this the common noise people indicate when turned hard over or is there another issue? I don't recall this noise with my old drive.

Thanks for the help

 

[dubs283]

Full down/in position creates a bend in the u joints. Same with full trim position based on trim switch setting to within spec, anywhere from roughly 20-21" between centers of the trim ram.

I will say many boats I adjust limit to full spec often cavitate on plane prior to trim limit within spec. I have taken to the idea of less is more given today's hull designs

To OP: you're concern is normal. Hard turns are detrimental to all boats, fortunately it's rare an operator is definitely required to execute this practice. I've found most times I'm turning hard it's when I'm having fun

 

[jimmbo]

Pull the drive and check the Double U-joints for any stiffness or 'bump'

 

[tank1949]

Pull the drive and check the Double U-joints for any stiffness or 'bump'

also check for OD vertical play. If you have up and down play, it will cause issues. And perform a hammer/sound test on transom for rot.

 

[ronbacardi]

Full down/in position creates a bend in the u joints. Same with full trim position based on trim switch setting to within spec, anywhere from roughly 20-21" between centers of the trim ram.

I will say many boats I adjust limit to full spec often cavitate on plane prior to trim limit within spec. I have taken to the idea of less is more given today's hull designs

To OP: you're concern is normal. Hard turns are detrimental to all boats, fortunately it's rare an operator is definitely required to execute this practice. I've found most times I'm turning hard it's when I'm having fun

Thanks for the reply - Figured the u-joints were just at their limit and considering everything is brand new OEM but wanted to confirm.

 

[ronbacardi]

also check for OD vertical play. If you have up and down play, it will cause issues. And perform a hammer/sound test on transom for rot.

Thanks, I'll take a look at the transom and for any vertical play. The gimbal housing is not new so their may be some play in it.

 

[Bondo]

Ayuh,.... I don't turn that tight, except at idle, for that reason,.....