Popping noise when lowering outdrive

[ratdude747]

Noticed a weird popping noise when lowering my outdrive (MC-1 888) after I got home from an outing today. See video.

Is this normal? If not, what would cause it? I did hit a bit of wood today, once hard enough I thought I nailed the prop (but the prop, despite being plastic, only had blunted/scraped leading edges). I was trimmed slightly up when that happened. I hit some more wood lighter at idle speed with the drive at trim cutoff (shallow creek leading to boat ramp).

 

[Bt Doctur]

sounds like the rubber bushings are too tight or dry.other cause is tight seals on the ram ends. More common with those rams vs the newer type

 

[ratdude747]

sounds like the rubber bushings are too tight or dry.other cause is tight seals on the ram ends. More common with those rams vs the newer type

I see. I bottomed out the nuts when I re-installed my outdrive after the last offseason's repairs as I always have. Is that incorrect? The bushings were replaced a few years ago.

But more importantly, how serious of an issue is it?