More Stern Tube problems

[alahol2]

The plan is to cut the present stern tube as close as possible to the hull and grinding/sanding back to flush and then either punching the remnent out or pulling out, using the tail thread and jacking bolts.

If your stern tube is like mine (bronze?) it will be threaded at both ends, forward into the stuffing box, aft into the bearing carrier. Once you remove the bolts holding the stern bearing carrier you should be able to unscrew it from the tube. When removing the stern carrier on my boat I had to restrain the stern tube from turning otherwise it would have unscrewed from the forward stuffing box and been withdrawn through the stern.

 

[Bobobolinsky]

Yes it's bronze, the tail end is threaded what looks like 1.25" BSP, so I should be able to screw a bit of pipe onto it, and pull it out, after cutting the fore end off flush and sanding until I can see the bond crack.

Plan B is to bore the last bit out with the boring bar. Fortunately I have a blue and grey Wolf two speed 16mm drill, which on low speed turns at about 300 rpm and has huge torque and I will use that to do the line boring, though I also have a Rotobroach and 38mm broach, so that could also make short work of the bronze, and most of the way to the final diameter.

The previous owner also drilled a relief hole in the hull to let the water out, as he freely admitted, he used it as a potting shed and somewhere to escape from his SWMBO. Result is a drain hole drilled way down at the bottom of the bilge and with the stern tube preventing access to the hole and making filling it something like keyhole surgery and bovine insemination