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MG TD TF 1500 - Pertronix LU-146LS

A couple of weeks ago I said that I'd take on the challenge of getting a pertronix LU-146LS Igniter (LS=Lobe Sensor)to function in a TD. Today I put about 25 miles on Lazarus (my '52 TD) with an installed LU-146LS. The most time consuming aspect of the job was the creation of a set of EMI/RFI suppressed ignition cables. The most frustrating part was in trying to perform an initial static ignition timing.

I'll give more details in following posts, but I have a few more things to mention. Lazarus has a negative ground system. I installed the Igniter onto a new ignition plate (Moss #152-900) rather than mess with my original points plate. Lazarus has a D2A 40368 distributor and a Lucas Sports Coil. I used the rotor that came with the Igniter.

The LU-146LS gave me the smoothest, most willing to rev, performance that Lazarus has ever shown. More to come. Bud
Bud Krueger

same as my experience with the same set up. Smooth and eager to rev
Jan Emil Kristoffersen

Here is some info from the archives about static timing the pertronix...good info from the late Bob Jeffers
Bob Dougherty

Thanks, Bob. I've set up quite a few LU-146's with the static timing, ala points. I suspect that the lobe sensing Igniter may be operating with a different paradigm. The susceptibleness to EMI/RFI indicates an oscillatory circuit, rather than the emulation of an ignition point's opening. I'll start doing some digging shortly. Bud
Bud Krueger

Bud, again, thank you.
R C Flowers

This thread was discussed between 07/10/2014 and 08/10/2014

MG TD TF 1500 index

This thread is from the archive. The Live MG TD TF 1500 BBS is active now.