christopherb

Final update: I visited the boat today, loosened the gearbox flange, clamped a vice grip just behind the key and with just a few light...

I think it was the original postion but can't be sure as I wrapped the shaft in insulating tape to avoid the key dropping into the...

Actually it came out surprisingly easily. I did consider the option you suggest of removing the coupling but the hex bolts holding it on...

No.

In fact the apparent gouge in the shaft is just a grease line indicating the shaft's original position. I think the fact that I can't...

Update: I visited the boat today, managed to separate the prop shaft from the gearbox, put it in gear and - no grinding sound. So that...

I think it will turn out to be the cutless bearing.

It's a packed gland as shown in the photo from the survey, The recording was done while the boat was moored in the marina, but last time...

I have checked the shaft anode which is secure. I might try disconnecting the shaft, thanks for the suggestion.

Screenshot Try that, from the survey report.

I just looked at the survey and it says 'a butyl rubber cutless bearing' with about 1mm play, which I guess could let grit and small...

Check the link now please. I've given permission to anyone with the link.

I'll check that the link has permissions, It seems to be more or less constant.

My boat is a Maurice Griffiths Kylix with a Volvo Penta MD11C and a Volvo Penta MS gearbox. When I engage gear, there is a grinding...