[TR] Moss 6 vane water pump

[William Babbitt]

  Has anyone had experience with these 6 vane water pumps from Moss?
  I picked one up for my TR3a (TR4a engine).
  I've noticed two things:
  The shaft material is soft, and
  The shaft is shorter than stock.
   
  The shaft lenght concerns me the most since it does not fully fill the cavity in the pulley. 
  As a result the nut is not fully driven home.  It is an elastic stop nut.  I also used Locktite as a backup.
   
  thanks,
  Bill