The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Question for the Electrical Gurus; Distributer not getting juice during cranking.

Bigdav160 · 03-07-2023, 08:28 AM

While cranking the ignition is fed through the "bypass". On a GM it's a yellow wire, IIRC. Once the key is released the ignition gets it's power through the resistance wire.

When installing an HEI full battery power is required so many just find a place in the fuse box that is hot when the key is on.

03-07-2023, 08:28 AM	#7
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: Question for the Electrical Gurus; Distributer not getting juice during cranking. While cranking the ignition is fed through the "bypass". On a GM it's a yellow wire, IIRC. Once the key is released the ignition gets it's power through the resistance wire. When installing an HEI full battery power is required so many just find a place in the fuse box that is hot when the key is on. __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe