Stripped Ground strap bolt, Bolt below rear trunk that attaches to transmission |
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Stripped Ground strap bolt, Bolt below rear trunk that attaches to transmission |
Wew |
Jun 23 2021, 11:14 AM
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#1
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Member Group: Members Posts: 227 Joined: 17-January 15 From: Novato, ca Member No.: 18,335 Region Association: None |
Hi all,
I did the bonehead maneuver of leaving the ground strap attached to the transmission and the body (below the rear trunk) when dropping my motor. I have a harbor freight tap set but that didn't work trying to rethread the bolt. Any other suggestions and or work arounds at the motor is back in the car and am waiting on a few things on order and would like to address this issue sometime soon. It does look like its a bolt that actually goes all the way through and I was considering using a cut off wheel on the top and re welding a new bolt into the opening. Hoping their is an easier fix but if I have to, what the heck. Interested in seeing what other members have done to remedy this issue. If you did replace the bolt please let me know what size and type you used so I can go pick up the correct size. Thanks, Gary |
GregAmy |
Jun 23 2021, 11:31 AM
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#2
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Advanced Member Group: Members Posts: 2,311 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States |
I was considering using a cut off wheel on the top and re welding a new bolt into the opening. Or just drill a hole through the floor at that location and run a button-head bolt down through it with a nut on the underside to retain it. Make it as long (or as short) as you want it. |
930cabman |
Jun 23 2021, 01:39 PM
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#3
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Advanced Member Group: Members Posts: 3,144 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
ALL of the power for the car goes through this cable. make sure you get a clean/solid contact area.
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IronHillRestorations |
Jun 24 2021, 06:46 AM
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#4
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I. I. R. C. Group: Members Posts: 6,728 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None |
I was considering using a cut off wheel on the top and re welding a new bolt into the opening. Or just drill a hole through the floor at that location and run a button-head bolt down through it with a nut on the underside to retain it. Make it as long (or as short) as you want it. Exactly what I’d do too. Good advice! |
Spoke |
Jun 24 2021, 08:06 AM
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#5
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Jerry Group: Members Posts: 6,991 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
I was considering using a cut off wheel on the top and re welding a new bolt into the opening. Or just drill a hole through the floor at that location and run a button-head bolt down through it with a nut on the underside to retain it. Make it as long (or as short) as you want it. (IMG:style_emoticons/default/agree.gif) After drilling the hole, grind/sand/scrape all of the paint off around the hole top and bottom to ensure good electrical contact. |
Krieger |
Jun 24 2021, 08:07 AM
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#6
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Advanced Member Group: Members Posts: 4,726 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None |
Maybe try the next size smaller die on it. Not much to loose...
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worn |
Jun 24 2021, 08:42 AM
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#7
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can't remember Group: Members Posts: 3,162 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest |
Hi all, I did the bonehead maneuver of leaving the ground strap attached to the transmission and the body (below the rear trunk) when dropping my motor. I have a harbor freight tap set but that didn't work trying to rethread the bolt. Any other suggestions and or work arounds at the motor is back in the car and am waiting on a few things on order and would like to address this issue sometime soon. It does look like its a bolt that actually goes all the way through and I was considering using a cut off wheel on the top and re welding a new bolt into the opening. Hoping their is an easier fix but if I have to, what the heck. Interested in seeing what other members have done to remedy this issue. If you did replace the bolt please let me know what size and type you used so I can go pick up the correct size. Thanks, Gary My suggestion will trash some paint but I would put a bolt in and braze it to the body. The orange flux covered silver bearing rods seem to flow better than most and they cost more than most, but not that bad. MAPP gas will work but the heat affected zone will be larger than if you use acetylene. One thing to keep in mind is that the factory covered this region in brass. That is where your electrons are going, not through the bolt. So if you replace the bolt with one that goes through the body to a nut, it will work fine. |
Wew |
Jun 24 2021, 10:37 AM
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#8
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Member Group: Members Posts: 227 Joined: 17-January 15 From: Novato, ca Member No.: 18,335 Region Association: None |
Thanks for all the input everyone.
I ended up taking a cut off wheel to the top of the bolt in the rear trunk. Other end of the bolt fell out after cut off complete. I did see the brass doughnut. I ground things down just a touch to get a level paint free surface. Then I took a bolt, same size as original and welded it into place. Primed it and will paint with rattle can (matching color) Hopefully this solves my problem and give me a nice solid ground. Thanks again, Gary |
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