[Healeys] Overdrive

[Leonard Berkowitz]

Hi all.

A few months ago I posted a request for assistance on removing my overdrive and installing a new one. Many advised me to not do it or to remove the entire transmission first.  Me being the stubborm guy I am I didn't take that advice. I am happy to say that with a little thought and a ton of effort the job is done.  Of course being a British car with Lucas electrics I had other problems after I installed the new overdrive.  It would work fine and then stop working and then start working again.  The problem turned out to be a faulty overdrive relay.  In the end the only part of the system I didn't change was the dashboard (fascia) and the gear shift lever switches. If anyone out there decides to switch out their overdrive feel free to consult with me. (DrBerkowitz at hotmail.com) It really wasn't such a nightmare.  The trick was to raise the rear of the transmission in order to clear the under side mounts and then to lower it back down to clear the output shaft form the tranny.  Just make sure you remove the throttle shaft from the firewall (Scuttle) before you start raising and lowering the engine. The other problem was the new throttle switch couild not be adjusted to open until half throttle instead of 20% throttle. Easy fix was to bend the shaft that actuates the switch.
Although my old overdrive functioned it hasn't functioned properly for about 20 years. The new one ( a rebuilt unit from Quantumechanics) operates like new.  What a pleasure.
Len Berkowitz
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