There was a fair bit of play in the old cutless bearing on my boat. Initially i was going to pull the propeller shaft and remove the bearing by cutting it in half. Unfortunately, i couldn't do it without dropping the rudder. As i didn't really want to do this nor buy a strut-pro tool i decided to make my own tool to pull the bearing.
I thought it might be useful for someone else. The total cost of the material was 23 euros.
Here are a few pictures to explain...
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The puller was built from 24mm baltic birch plywood, 12mm threaded rod, a piece of steel pipe the same length and slightly smaller outer diameter than the bearing and a few nuts and washers. One side of the puller has a hole the same size as the shaft and the other side has a hole big enough for the cutless bearing to pass through.
At first the plywood bent a lot and i was scared it would splinter and break but then the bearing started to slide out.
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I used the same tool to install the new bearing. All in all the job took me about two hours including construction of the tool and the installation of the new bearing. I think this method is very good since there is hardly any risk of damaging the shaft strut and the propeller shaft acts as a guide for installing the new bearing.