[kjelle69]

We have a somewhat worn out bronze bushing on our sailboat.
(The upper rudder bearing)
Innerdiameter ca 60 mm and outer diameter is a bit over 80mm.

The bushing is molded into the hull and impossible to remove without damaging the deck.
I would like to linebore out the upper part of the bronze bushing to be able to insert a Delrin/PON Bushing with the correct size into the bronze bushing without removing it.
Is this possible and what tools do I need to do this in site? Preferrably with an ordinary drill or milling machine.
There is a bit of space beneath the bearing inside of the hull, so operations from both sides of the bearing is possible.

[rowbare]

It looks pretty straightforward. The key will be keeping things rigid enough. Is there a lower rudder bearing you can use as a guide?

Have you considered other options like Moglice or Babbitt?

bob

[kjelle69]

What is Moglice & Babbit?

There is a lower rudder bearing with the same inner diameter about 1 meter below the upper one.

//Kjelle

It looks pretty straightforward. The key will be keeping things rigid enough. Is there a lower rudder bearing you can use as a guide?

Have you considered other options like Moglice or Babbitt?

bob