Lucas Ignition System

[Splashout]

Hopefully someone out there will be able to shed some light on this.

I have lost all spar from the ignition system and as a result have replaced amplifier and coil. I have done the static voltage tests and the only one that shows up wrong is the amplifier which i can not get down below 0.3v (manual says 0 - 0.1v) would this stop the ht lead sparking? I have a new earth strap to try which will hopefully bring it down below 0.1 if this dose not work then any other ideas?

[Esprit Aviation]

Obtain an Electromotive crank triggered system and eliminate the entire stock ignition system, incl. the distributor. This will give you reliability, tuneability and most important of all you won't risk a fire if your cabs happen to leak fuel!

Edited January 19, 2006 by Esprit Aviation

[Esprit Aviation]

Obtain an Electromotive crank triggered system and eliminate the entire stock ignition system, incl. the distributor. This will give you reliability, tuneability and most important of all you won't risk a fire if your carbs happen to leak fuel!

<{POST_SNAPBACK}>

[JRTurbo909]

Obtain an Electromotive crank triggered system and eliminate the entire stock ignition system, incl. the distributor. This will give you reliability, tuneability and most important of all you won't risk a fire if your cabs happen to leak fuel!

<{POST_SNAPBACK}>

Any details on this system? Im having some distributor problems as well...

Shah

[molemot]

One of the things that can happen to the Lucas unit is that the brown three wire connector between the distributor and the ally spark box in the GF cover goes open circuit, and doesn't pass current. This has - in the past- been seen to be the Achilles heel of the system , at least on my 1982 bolide. The connector is 'orrible and can repay cleaning and generally sorting out. Check ALL the connections before replacing anything, generally electronics keep working OK and it's the bits around the outside which die - especially connections. It has always been thus - I've heard a story from WW2 about a radar unit on which was a notice saying " Thump here for more gain!" This jogged the connections back to working properly. Also, a cousin of mine is the head honcho for valve guitar amps in SE England - he's made huge differences in amplifier performance by simply changing the Chinese valve base sockets for reliable old stock Mullard ones - no longer available - good connectivity can make all the difference. It takes very little resistance to stop a 12 v system from working - remember Ohms law, I=V /R so with only 12 volts you need very little resistance to limit the current. A Lucas system, properly instaalled and maintained, should work fine.

[Esprit Aviation]

Electromotive s/b on the internet- sorry, I dont have the info in front of me. You wont be sorry! Esp. getting rid of that distributor under all that pressurized fuel!