Tired Lucas 25D, when to replace a worn out dizzy

In this video, I inspect and dismantle a very worn Lucas 25D distributor.
By measuring advance curves and dwell angles, I can see what effect the wear on the central shaft has on ignition timing.
I also discuss the effect that the wear has on the ignition advance curves and why it is a problem.
These problems are not specific to the Lucas 25D distributor, they are common to all types of distributors, the 45D 59D 65D, as well as other vehicles.

[@brianbrookespayne3286]

if the dwell is too long it will overhear the HT coil.

[@darrensrestorations991]

Yes it will.

[@paulmuff9883]

I just drill them out oversized and make bushes to remove the slack in the shaft 😀👍 great video 👍

[@darrensrestorations991]

Yep, thats the way to fix them.

[@paulmuff9883]

Hi I’ve just found your channel and loving it , have you done a post on your machine? Is it a bought one or have you made it?

[@darrensrestorations991]

Hi, i made my own distributor machine as well as the electronics to run it. Thanks for watching!

[@jackh963]

Good information well done.

[@darrensrestorations991]

Thanks for watching