We've not long bought an early mk3 mini 850. which originally had a magic wand shift but has at some point been changed to a later remote gearchange. Im still trying to assess exactly what we've got, but one issue which has reared its head is a difficulty going from 4th to 3rd gear. It will go from 2nd to 3rd fine, but crunches unless double declutched coming down to 3rd.
Is this likely to be a knackered synchromesh, or are there other possible causes like bushes that might cause similar?
And how easy are such problems to fix?