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06-19-2016, 10:01 PM | #1 |
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Ground ?'s for driving a rolling chassis
Everything is pretty much ready to fire up on my rolling chassis. I need to drive it out of the garage so I can get the body painted. My question is does the terminal box need to be grounded? Right now the ignition coil, terminal box and instrument panel are mounted to a block of wood. I'm thinking the instruments and box should be grounded but I'm not sure where I should put the ground.
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06-19-2016, 10:32 PM | #2 |
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Re: Ground ?'s for driving a rolling chassis
Nope the terminal box was originally made from hard rubber, nothing to ground.
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06-19-2016, 10:46 PM | #3 |
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Re: Ground ?'s for driving a rolling chassis
So I could prably get away with putting the jumper on the coil bracket? I have the oe coil bracket mounted to the wood and since its grasping the coil it should be ok ,right? I just didn't want to take any chances burning something up.
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06-19-2016, 11:24 PM | #4 |
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Re: Ground ?'s for driving a rolling chassis
why would the coil case need to be grounded?? If anything inside the coil is touching the case its a bad coil.. Alot of replacements are plastic anyways.
just make sure the generator has a good ground back to the pos post and all the connections are clean and tight. Should be good to go. having the fuse and a battery disconnect are ideal too but main one that every garage should have is a fire extinguisher.
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06-19-2016, 11:43 PM | #5 |
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Re: Ground ?'s for driving a rolling chassis
Gotcha. I guess I'll try and start her up tomorrow then. Finally feel like I'm making progress.
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06-20-2016, 12:36 AM | #6 |
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Re: Ground ?'s for driving a rolling chassis
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06-20-2016, 12:50 AM | #7 |
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Re: Ground ?'s for driving a rolling chassis
Not Model A specific, but I tend to be obsessive about grounds, and add ground wires between bodying frame,body and engine, frame and motor, generator and body, on and on.A lot of electrical quirks and failures are due to something not being properly grounded, even though it would appear to be naturally grounded just by its installation. Paint is often a culprit in causing a grounding failure, and just adding a wire will solve the problem. As an example, when recently wiring my A tail lights I added an extra wire from the tail light housing to a bare metal spot on the body. I know it is not original, but it is more reliable, at least in my opinion.
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06-20-2016, 01:00 AM | #8 |
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Re: Ground ?'s for driving a rolling chassis
I don't see how the coil could work if internals are grounded to the case? How would a plastic cased coil work, does it have another terminal to go to ground that i have not seen?
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06-20-2016, 01:33 AM | #9 |
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Re: Ground ?'s for driving a rolling chassis
You can mount coil in rubber! works fine.! its grounded thru the points
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06-20-2016, 01:38 AM | #10 |
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Re: Ground ?'s for driving a rolling chassis
Since it can't hurt, why not?
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06-20-2016, 02:18 AM | #11 |
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Re: Ground ?'s for driving a rolling chassis
The circuit is completed by the points being closed. (Grounded). (Charged). Then when opened, it causes the secondary to collapse and ground out as it jumps the spark gap. Ect ect. The case has nothing to do with operational ground. The inside wiring of the coil is called free floating or isolated.
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06-20-2016, 04:13 AM | #12 |
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Re: Ground ?'s for driving a rolling chassis
the coil dose not need grounded I drove mine like this for four years
kevin 1930 tudor |
06-20-2016, 07:58 AM | #13 | |
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Re: Ground ?'s for driving a rolling chassis
Quote:
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06-20-2016, 08:59 AM | #14 | |
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Re: Ground ?'s for driving a rolling chassis
Quote:
the coil dose not need grounded I drove mine like this for four years kevin 1930 tudor That's exactly how I'm trying to run it. Minus the fenders and such. Those are the items I'm needing to paint as well. |
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06-20-2016, 03:28 PM | #15 | |
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Re: Ground ?'s for driving a rolling chassis
Quote:
Bill Rascal
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06-20-2016, 03:57 PM | #16 |
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Re: Ground ?'s for driving a rolling chassis
Got it started and running. So far so good. I'll prably try to pull it out of the garage later today. Thanks for the help fellas.
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