[Mgs] Coil resistance for Lucas 25D

[William Killeffer]

Hello everyone,

My car's a 1974 MGB with an 18GK engine and twin HS4 carbs. I've been running a Pertronix distributor with its matching coil for awhile, but just got the car's 25D back from Jeff at Advance, and it looks better than what it probably did when it was new. I'm going to go back to using points and condenser with the rebuilt distributor. 

I still have the factory Lucas coil that came with the car when I first obtained it. I checked the resistance to see if it was still useful, and here's what I found:

With a small handheld analog meter, it registered around 6700ohm across the secondary, and the little meter's not capable of giving a reading for the primary.

On the new-to-me Sears Engine Analyzer, the primary shows 5.6ohm and the secondary shows 5100ohm.

Either way, that looks too high given some of the other numbers I've seen. I haven't checked the Pertronix coil, but will before trying to use it.

Am I right in believing this original coil shouldn't be used?

Thank you,
-Bill
Sent from my iPhone
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/mgs/attachments/20240225/6288165c/attachment.htm>