Grounding strap question
04-27-2009, 04:13 PM
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Grounding strap question
I had the complete frame of this 69 coupe powder coated. I have the body back on am wondering if I need to scuff up or scrape away the powder coat from areas that are used for grounding straps or the Negative battery terminal. Also, I know there are two straps from body to frame at exhaust hangers and two more around the door sill. I seem to remember more when I took it apart. I know about the radio antenna strap too. Anything else?
04-27-2009, 04:18 PM
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Hi DP,
I had the frame on my 71 powder coated and found that putting the bolts in place takes enough of the coating off to achieve a ground condition. It's easy to use your meter to test each location and run the bolt in and out a couple of times if you need to. The ground at the starter to frame bracket uses a star washer that worked even with the thickness of the coating.
Good Luck!
Regards,
Alan
I had the frame on my 71 powder coated and found that putting the bolts in place takes enough of the coating off to achieve a ground condition. It's easy to use your meter to test each location and run the bolt in and out a couple of times if you need to. The ground at the starter to frame bracket uses a star washer that worked even with the thickness of the coating.
Good Luck!
Regards,
Alan
04-27-2009, 05:01 PM
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Hi DP,
I had the frame on my 71 powder coated and found that putting the bolts in place takes enough of the coating off to achieve a ground condition. It's easy to use your meter to test each location and run the bolt in and out a couple of times if you need to. The ground at the starter to frame bracket uses a star washer that worked even with the thickness of the coating.
Good Luck!
Regards,
Alan
I had the frame on my 71 powder coated and found that putting the bolts in place takes enough of the coating off to achieve a ground condition. It's easy to use your meter to test each location and run the bolt in and out a couple of times if you need to. The ground at the starter to frame bracket uses a star washer that worked even with the thickness of the coating.
Good Luck!
Regards,
Alan
04-27-2009, 06:01 PM
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Hi DP,
I didn't mean to imply that you should have the same # of straps as my 71. I believe your 69 had at least 2 more and maybe 4 more. 2 at the center exhaust hanger and 1 at the front of each rocker channel. Running the bolts in and out should work at those locations too.
Regards,
Alan
I didn't mean to imply that you should have the same # of straps as my 71. I believe your 69 had at least 2 more and maybe 4 more. 2 at the center exhaust hanger and 1 at the front of each rocker channel. Running the bolts in and out should work at those locations too.
Regards,
Alan
Last edited by Alan 71; 04-27-2009 at 06:12 PM.
04-27-2009, 06:07 PM
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DP,
I agree with what Alan 71 said with the addition of using die-electric grease at the point of contact to the frame to keep it from rusting in the future when the external tooth lock washers dig in through your powder coating. Nothing is worse than to be under your vette in a few years and see the rust stains running down on your powder coating where bolts were installed for fuel / brake lines, wiring, etc. "DUB"
I agree with what Alan 71 said with the addition of using die-electric grease at the point of contact to the frame to keep it from rusting in the future when the external tooth lock washers dig in through your powder coating. Nothing is worse than to be under your vette in a few years and see the rust stains running down on your powder coating where bolts were installed for fuel / brake lines, wiring, etc. "DUB"
