A history lesson, were the electronics that good? Did that prediction come true?
Okay, we all pick on Lucas, especially those of us obsessed with Brit cars.
In our MG club in Milwaukee, we have an award that is given out to participants in drives and rallies who suffer mechanical or electrical problems at inopportune times during an event - it's called "The Lucas Murphy Award".
But for the most part - and a rare degree of honesty here, because Lucas is such an easy target - in defense of Lucas, at BMH/BMC/BL, the components ordered by the industry were almost without exception specified as close to the rating required of the circuit involved as possible.
A classic example is the headlight switch on an MGB. It's a 10 amp switch. Headlights typically are about 55 watts - a pair equaling 110 watts. A 10 amp switch is rated for 10 amps @ 12 volts - 120 watts. It works on paper, but if the alternator and charging system is putting out 13.7 volts - not uncommon - you're at 125 watts. If you have any corrosion in the contacts, the draw is higher.
In short - in this case, at least - there is no margin for error in the specification or in the application.
I've put 20 or 30 amp relays on as many switches on my MGB as possible in order to preserve the wiring harness and switches.
And it's not like Lucas didn't make better quality switches - it's that BMH/BMC/BL tried to keep production costs down at the expense of longevity by specifying products with insufficient tolerances.
And then what happens? Over time there's a switch failure, the switch is removed, the name "Lucas" is printed or cast onto the item, and the poor reputation gains legs.
Nobody uses "Autolite" or "Delco" as swear words, because neither Ford nor GM stretched their ratings as close to the margins as BMH/BMC/BL.
Guilt by association is what's made Lucas the butt of jokes.
Yet they remain funny . . .
