The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

tmoble · 05-24-2015, 04:36 AM

speed up the idle 50 RPM and see if that solves the flashing light issue. The generators don't put out much compared to an alternator. If RPM drops too low at idle the charge voltage will go below the battery voltage and the light comes on.

I don't think your Pertronix is involved in this, but it could be if you accidentally changed the base timing swapping out the points. If the timing is retarded the idle speed will drop too low.

05-24-2015, 04:36 AM	#2
tmoble Registered User Join Date: Feb 2009 Location: Glendale, Az Posts: 1,062	Re: Best coil for Petronix speed up the idle 50 RPM and see if that solves the flashing light issue. The generators don't put out much compared to an alternator. If RPM drops too low at idle the charge voltage will go below the battery voltage and the light comes on. I don't think your Pertronix is involved in this, but it could be if you accidentally changed the base timing swapping out the points. If the timing is retarded the idle speed will drop too low.