83 watercooled westy.  Driver's door lock mechanism is playing up.
Door will not close - period.   Seems like the issue is the catch
(latch?) mechanism (the bit that 'clicks' on to the door spindle and
that is triggered by the outside handle finger latch) - it's not
sticking up to latch the swivel mechanism in place when the door is
shut.  Not sure if I'm describing this well or using non-standard
terms, but can anyone offer some advice for fixing?  Can't see any
new parts for this on Gwesty, Bus Depot, etc., so hoping this can be
fixed.

Thanks a lot guys,

Angus