Be careful how you read their instructions. Catalog writers,both Bosch and
Lucas, use imprecise language at best. Coils either HAVE a ballast resistor
in them, or require an external resistor. The language of "... X car
requires a coil with a ballast resistor" usually means that that a coil
that _contains_ a ballast resistor is needed. This is true of the MGA and B
where the wiring schematic does not show an external ballast resistor in
the vehicle's loom.
Been around the block onthis one many times.
Peter C
-----
At 11:15 PM 8/16/1999 , Neil Cotty wrote:
>Hi all,
>
>Getting my new Bosch dist. tomorrow so I decided to replace the one I took
>from my MGB which is 29yrs old with a Sport coil type. Bosch have just
>re-released their GT40 in the round style so I won't have to go drillin'
>holes in the A to fit their new funky shaped one.
>
>The Bosch catalog says the MGA requires a coil WITH a ballast resistor.
>Surely this isn't right. The one I took off my A was a Lucas HA12, and the
>one off the MGB (70) didn't use a Ballast resistor either. Can someone just
>clarify that for me that I need one WITHOUT a ballast resistor. I'm 99% sure
>I'm right, just don't want to order till I'm 100%..! <G> :)
>
>Cheers,
>Neil.
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