autos dont use a spigot bush, you need 549911 bush just taps in with a suitable flat faced tool, a suitable sized socket used the wrong way round may do it
So I've stuck the spigot bush in and then tried to fit the flywheel..... It doesn't fit because of the dowel in the end of the crank. Do I have an incorrect flywheel? I've read people remove the dowel (grind it off) but it seems a bit drastic!