Mk. 111 solenoid

Have read that a Morris/Austin Mini solenoid is a good upgrade for a Mk.111 as it takes less juice, can anyone confirm this and maybe a Lucas part number as there seems to have been several types used

Sam
These were the old Lucas 4ST solenoid which came in lots of versions. It does take less than the 2ST. I used to work for Lucas and the coils were all the same winding unless 24v of course and not many 4ST were 24v. Any version will do but you can't guarantee that todays build matches those made in the 70's and 80's.
The versions you will see are either earth or insulated return and some will have an extra connection blade for ballast resistor bypass. Either of the Vehicle wiring products will do......http://www.vehicle-wiring-products.eu/V ... artsol.php

Thanks Keith,
Very helpful
sam

Here is an "upgrade'" that you might consider - add a switch protector diode to the starter solenoid assembly. When the starter switch button is released there is a high induced voltage spike created within the solenoid's windings. The diode makes an easy path for electrical current to flow when this spike occurs. This reduces spark erosion on your starter switch thereby giving it a longer switch life.

Radio Shack sells inexpensive diodes. A 100 volt, 3 amp diode should work fine. Assuming you have a positive ground vehicle, connect the cathode side (the side marked with a white or silver band) to ground and connect the anode side (unmarked side) of the diode to the switch terminal.

These switch protecting diodes are commonly used on aircraft starter relays and master relays. They are used to protect the magneto/starter switch (very expensive) and the master switch.