[Healeys] speedo cable

[Mirek Sharp]

Hi all,

When I got my speedo back from Nisonger after they repaired it, there was a 
notation on the invoice that they found some gearbox oil in the speedo head 
which may have contributed to its demise.  I have read warnings about over 
lubricating inner cables to prevent this and have always been careful (or so 
I thought).  I also know there is suppossed to be a seal on the cable to 
prevent oil from running up the cable into the speedo head, but I am unsure 
what it looks like or where exactly it goes.  Is there a seal at both ends?

Could someone enlighten me on this and perhaps suggest a source for the 
seals or describe how one could be made.

Mirek
60 BT7