[Healeys] Distributor cap and wires

[Elton Schulz]

Fellow Listers,
I recently purchased a new Lucas side entry distributor cap and new 
ignition wires. I'm having no success in fastening the wires with the 
cap's screws.  The screws are right up against the bottom stops of the 
wire holes and the screws have too little wire to bite into. Try as I 
might, the wires pull out with no effort.  What am I missing? Should 
there be a thimble or sorts or something over the wire's end for the 
screw to catch?
Thanks for your help.
Elton
BJ7