[Healeys] Throttle switch on overdrive function? BJ8

[Weston Keyes]

Hello Folks,

     I have the 2 wires that go to the trottle
switch off. My overdrive goes off and on when I operate the switch on
the dash (as long as I am in 3rd or 4th). Is that normal? I believe
from reading the manual that the throttle switch is supposed to keep
the overdrive engaged until the throttle is off or low. Is it true that
it serves no purpose when engaging the overdrive?

Many thanks

Wes Keyes
York, Maine