66 ignition help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Roblenzz · 10-13-2019, 11:48 AM

Working on a factory 66 K10 and got it running w/ original 327. Put an NV4500 Transmission w/ Advanced Adapter bell housing. Powermaster high speed starter. Starts up and runs great. Problem I'm having is when i switch the ignition off, power is being bumped back to the solenoid and it sends the bendix back into the flywheel, grinding it briefly. I checked my ignition switch with a multimeter to see if I'm getting a surge to the solenoid post when i switch it off and I'm not. I'm using a Painless harness with all new wires. Anyone have any ideas? Thanks

10-13-2019, 11:48 AM	#1
Roblenzz Registered User Join Date: Jun 2017 Location: Jacksonville Posts: 17	66 ignition help Working on a factory 66 K10 and got it running w/ original 327. Put an NV4500 Transmission w/ Advanced Adapter bell housing. Powermaster high speed starter. Starts up and runs great. Problem I'm having is when i switch the ignition off, power is being bumped back to the solenoid and it sends the bendix back into the flywheel, grinding it briefly. I checked my ignition switch with a multimeter to see if I'm getting a surge to the solenoid post when i switch it off and I'm not. I'm using a Painless harness with all new wires. Anyone have any ideas? Thanks



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