I have a Lofrans as well, and with age it is not easy to separate them
What you need to do is remove the gypsy and drum on deck
, and then remove the nuts holding the motor
to the deck fitting.
Then take a shift to the shaft in the centre of the drive under the deck, and give the shift several hard hits with a hammer.
On deck you need 3 or 4 hardwood wedges, and as the deck fitting starts to lift
up, insert the wedges, and evenly drive them in between the deck and the windlass, which helps the process. Return to the central shaft, and using the shift drive it up through the drive. At this point it all should start to move more easily, and the motor will then start to slide down, it is heavy so useful the first time to have another pair of hands.
Once you have got it apart, you need to check and replace the seals
and bearings in the deck assembly. Having learnt the hard way, I now check all these annually, and with the windlass now in its 15th year, it is still working well. Good luck. Bob