[Alberg30] Cutless Bearing Removal

[Mike Lehman]

What boat number are you? Also, there are two set screws on most of these 
housings. They are usually SS allen screws. Make sure they are removed 
before trying to remove the bearing. You may take a hacksaw blade and 
carefully cut out a section of the bearing on the inside. This will make it 
easier to remove the remaining sections. Most of the time I use a socket 
that is just a wee bit smaller in diameter that the bearing a drive the 
bearing out. But then I get a certain pleasure out of using a large hammer.



Mike Lehman
"Gilleleje" #505





----Original Message Follows----
From: "Voyager Toronto" <voyagertoronto at hotmail.com>
Reply-To: Alberg 30 public list <public-list at alberg30.org>
To: public-list at alberg30.org
Subject: [Alberg30] Cutless Bearing Removal
Date: Sun, 27 Oct 2002 13:42:49 +0000

I'm replacing the cutless bearing as a first step to installing a yanmar 
2GM20F. I've managed to remove the 8" bronze stern tube and the stern casing 
into which it threads. I did this by removing the casing bolts and hammering 
the bronze tube backwards to drive the whole assembly (tube and casing) from 
the hull. The lower edge (diameter) of the forward face of the bronze tube 
had been worn down to a knife edge by a misaligned shaft, and the hammering 
has further deformed its forward end. My plan is to simply cut off the 
deformed end, as the original 8" tube length appears to be unnecessary given 
that the cutless bearing is only 3-1/2 inches long and is entirely housed in 
the casing. I figure as long as I have enough length to clamp the stuffing 
box hose onto, I'll be OK. Can anyone see errors in this reasoning, or any 
ill effects from a shorter tube?

As a sidebar, the bearing is so firmly fixed in the casing (of course, I've 
now unscrewed the bronze tube), it has resisted all home-grown efforts to 
push or knock it out. Part of the problem is I don't know just how 
aggressive I can be without damaging the casing. I hesitate to try cutting 
it, as I don't want to cut into the bronze casing. Any ideas?



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