73 L48 coil specs

[Douglas C.]

My original coil reads primary 1.3 ohms and secondary 9,300 ohms. I find so many variations when searching these specs. Is there exact specs for my application or a correct range?
Tks. Doug

[Duke W.]

Re: 73 L48 coil specs

...should be in the CSM... might also be in the specs you can download from www.gmheritage.com

Duke

[Douglas C.]

Re: 73 L48 coil specs

...should be in the CSM... might also be in the specs you can download from www.gmheritage.com

Duke

I have the GM Heritage downloaded and printed out. Did not find the ohm specs. I'll go thru the pages again to see if I missed it.
Tks. Doug

[Douglas C.]

Re: 73 L48 coil specs

I do find in service manual specs, primary 1.77 - 2.05 Ohms and secondary 3,000 - 20,000. Most reading i do says secondary should be at least 11,000 Ohms. So, with such a big range of numbers is there a minimum Ohms resistance to determine a properly functioning coil? Tks. Doug