Originally Posted by Sniper
Depends on what's on the other side of the ballast.

Was that with the engine running?

From another thread where I posted the readings I got on my setup to help with a similar question.

Quote
When out to the 51 and took some measurements.

It's a 51 Plymouth Cambridge I converted to 12v negative ground using a Mopar alternator and voltage regulator. Stock points ignition with Mopar ballast and 12v coil.

engine off, key in run I see 12.2V at the battery (low, should be 12.8v ish) and 6.2v at the coil +, all grounds taken at the battery negative terminal.

engine running, 12.8V at the battery (low, should be 13.8v ish, need to up the idle speed) and 8.8v at the coil +, all grounds taken at the battery negative terminal.




Thanks, this is with the engine off and key to the run position. The battery was at 13.2 and 5.5 to the ballast and 5.4 to the coil.

The problem I encountered is a no start issue. and no spark to the plugs. I though maybe the ballast went bad....time to check some other things. Note. that the end of the ballast was loose, and when I tried to tight it, it broke off. so I need to replace that.

My Monster are real!

Living within your means makes life pretty easy.