well,
i have again spent time on this issue, studied, stared, thought about the problem
and then dived in, decided i had to shorten the stuffing tube by at least 10mm, next job i removed the shafts by now im on the second cuppa, measurements made and went at, i tried the pipe cutter but it didnt cut the steal tube, so had to very carefully use a hacksaw, after cleaning up the edges insuring there was no tight spots, i put it all back together , Bingo,
, a good result time well worth spending in the man cave..
Plan carefully fellow builders
Trucker