I have decided that I have got to get Sirenia's keel out of the keel box to make a good repair to the box.
The 9 bolts holding the top block to the main keel casting have badly rusted away and need changing anyway.
I will grind these off.
I do not fancy trying to get the keel into the cabin.
To much weight to be playing with in a confined space.

So to get it out I need to lift Sirenia off the keel.
This involves a vertical lift of some 4 ft.

I have had more of a look round at work and have found that the covered area outside the vehicle workshops is a substantial steel frame structure with beams that I can get strops round 5m above ground level.
We have a lot of strops in the stores.

I can get Sirenia in there on her trailer.

I have managed to get some of the bolts holding the top of the keel on to undo.
They look like they were some sort of cap bolt.
I cut the head of one and was grinding away a bit of it that was stopping the washer from coming off when it started to unscrew.
I then set about the other bolts with a cold chisel and club hammer.
I persuaded 6 of them to come lose in the end.
I have had to cut the heads of 2 more.
So the top section is off the keel and it is ready to drop out of the boat.
I have brought a couple of 5m straps via e-bay.
Just need the chain hoists now.
Going to talk to the local hire co. that we do a lot of business with. 

With a friend I have been looking at the Beta Engine.
It all looks o.k.
When we stripped the engine, we tested the starter motor and it worked o.k.
Put it all back together the other evening and would the starter go.
NO IT WOULDN'T

I have now had a go at it and it is working at the moment.
We will introduce it to the engine again tomorrow and hope that it all works.