Hi Angela,
Please make sure you support the engine well. Better use a
jack(trollyjack or a small bottlejack(available for less than 10 bob)
with a piece of wood to prevent puncturing the sump) under the sump .
At least you'll have a chance to be safe and you can move the engine a
little to line up on the mounts. I find supporting the engine and
removing the big support is the easiest way. Actually the big mount is
the easy one.
Better check the other mounts too. They are a bit of a hassle, but
worth getting them in good condition.
Kind regards ,
Christiaan Linford