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[C2] Quick Question: What is this for?

 
Old 07-10-2019, 06:50 PM
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Wayne88
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Default Quick Question: What is this for?

I had the C2 up on the race ramps and I found this disconnected 'ground' on the right side of the block. What's it for? It's probably been hanging like that for a while.
Thanks, Wayne





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Old 07-10-2019, 06:55 PM
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Goes from the motor mount to the frame engine mount. If you have a AIM look under RPO U69
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Old 07-10-2019, 06:58 PM
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Originally Posted by Nowhere Man View Post
Goes from the motor mount to the frame engine mount. If you have a AIM look under RPO U69
What is its function? What's it there for?
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Old 07-10-2019, 06:59 PM
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Ground strap for the radio. Just like all the others through out the car. Not a electrical wizard so not sure why it’s needed for the radio operation.

Last edited by Nowhere Man; 07-10-2019 at 07:00 PM.
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Old 07-10-2019, 07:05 PM
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Originally Posted by Wayne88 View Post
What is its function? What's it there for?
It's one of the grounds for the motor. The piece of the motor mount that mounts to the engine is isolated electrically from the piece that mounts to the frame by the rubber in the mount itself. This completes the circuit from the frame to the engine. There are quite a few of them around the car.
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Old 07-10-2019, 07:06 PM
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Originally Posted by Nowhere Man View Post
Ground strap for the radio. Just like all the others through out the car. Not a electrical wizard so not sure why itís needed for the radio operation.
Thanks, good to know its not for anything important. I hardly use the radio, I listen to the music from the side pipes.
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Old 07-10-2019, 07:12 PM
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Originally Posted by new vette 62 View Post
It's one of the grounds for the motor. The piece of the motor mount that mounts to the engine is isolated electrically from the piece that mounts to the frame by the rubber in the mount itself. This completes the circuit from the frame to the engine. There are quite a few of them around the car.
Now I'm confused [anything electrical confuses me]. What, if not the radio, is this disconnect affecting? Everything in the car seems to be working OK.
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Old 07-10-2019, 07:16 PM
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Originally Posted by Wayne88 View Post
Now I'm confused [anything electrical confuses me]. What, if not the radio, is this disconnect affecting? Everything in the car seems to be working OK.
It's a ground for noise suppression on the radio that is on the engine, there is one on the throttle linkage, one on the exhaust, and I don't remember where the rest are. You're fine.
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Old 07-10-2019, 07:19 PM
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Originally Posted by new vette 62 View Post
It's a ground for noise suppression on the radio that is on the engine, there is one on the throttle linkage, one on the exhaust, and I don't remember where the rest are. You're fine.
Got it, thanks.
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Old 07-10-2019, 07:34 PM
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On the frame bracket that the motor mount bolts into there is probably a 1/4" hole where the ground strap attaches. Because of the fiberglass body there are grounds everywhere that could cause any resistance to ground.

How that effects the radio I don't know except to keep the spark plug cadence from playing through the speakers.
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Old 07-10-2019, 07:53 PM
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Originally Posted by tbarb View Post
On the frame bracket that the motor mount bolts into there is probably a 1/4" hole where the ground strap attaches. Because of the fiberglass body there are grounds everywhere that could cause any resistance to ground.

How that effects the radio I don't know except to keep the spark plug cadence from playing through the speakers.
All of these radio grounds were for interference for AM radio back in the day.

Last edited by 68hemi; 07-10-2019 at 07:54 PM.
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