I think I may have damaged the spigot bearing when refitting the engine hence why it was hard get it push fully flat against the bellhousing, it should have slipped in fairly easily and not require using the bellhousing bolts to gently ease it in. Every thing is new & correct Rich, it all came from the one complete SD1 unit. Worked fine when I first did it back in 2019, so thinking about it I have possible damaged/misaligned it on refitting the block.
the more I think about it the more it makes sense sadly
, the engine lined up but just would not go that extra say 15~20mm flush against the bellhousing, almost the width of the spigot bearing! hence using the bolts to gently ease it all together, wonder if I have now pushed the bush right back into crack with just the tip of the input shaft in there but now is probably mangled hence having to force it into gear, as you say Stu, odd that the synchro would suddenly break.....I feel its g/box removal and take a look
. if so then I'll know why
but gonna be a right so & so to remove the bush if I'm correct, so frustrating as it all went together & worked smoothly in 2019.
For the love of old cars.......or not
.