On the back of the alternator you should find three wire connections. A thin black on is the ground. It usually runs from under on the the block bracket bolts to an alternator frame bolt.

There is a fat red wire that carries the chargeing current to the battery via the starter.

There is a thin red wire that carries the excitation voltage. This is the usual culprit. When it is grounded, all the warning lights light up and the alternator cannot charge.

When the key reaches Position II, the bulb test position, the lights go on because the red wire is grounded through the brushes. After the engine is runing, the alternator begins charging ant the ground is lost, so the warning lights go out. UNLESS - that thin red wire is grounded somewhere en route to the alternator. Then you get flickering warning lights and no charging.

That wire is one of the four that terminate in the gray connector on the firewall. It is easy to rig up a by-pass.

Good Luck,

Bob

:>)