 Front Bumper Top Molding Stud Repair |
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| DennisV |
  Nov 27 2025, 09:31 AM
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#1
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Senior Member  Group: Members Posts: 809 Joined: 8-August 20 From: Santa Rosa, CA Member No.: 24,575 Region Association: Northern California 
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Has anyone had success repairing / replacing a broken stud in the front bumper top molding? One of the studs snapped off during disassembly, despite several soakings in Sea Foam. Best I can tell these are molded into the rubber. I can't think of a way to remove the remaining stud without making things worse. I could of course melt it out, but then I have no way to set a new stud. (IMG:style_emoticons/default/unsure.gif)
 I realize new ones are available for sale. This one is in quite good shape with the exception of that stud. Seems a shame to trash it. Especially when the new ones are hundreds of dollars. |
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| IronHillRestorations |
Nov 27 2025, 09:52 AM
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#2
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I. I. R. C. Group: Members Posts: 6,899 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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You might try drilling it out and tapping it, then epoxy a stud. I’ve seen sheet metal screws used as well.
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| DennisV |
Nov 27 2025, 10:08 AM
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#3
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Senior Member Group: Members Posts: 809 Joined: 8-August 20 From: Santa Rosa, CA Member No.: 24,575 Region Association: Northern California
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QUOTE(IronHillRestorations @ Nov 27 2025, 07:52 AM)  You might try drilling it out and tapping it, then epoxy a stud. I’ve seen sheet metal screws used as well. I didn't realize you could tap rubber. Is there an epoxy you've had good luck with? Most of my attempts to bond plastics with any amount of stress applied seem to fail. I see JB Weld has SuperWeld Extreme that claims it will work on rubber. |
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| FlacaProductions |
Nov 27 2025, 10:40 AM
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#4
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Advanced Member Group: Members Posts: 2,106 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California
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I successfully used JB Weld years ago to place a stud that had pulled out of a rear lower spoiler on a 944 Turbo - very similar material to the 914 bumper tops. I'd try drilling it out, fill the hole with JB and then insert a new stud and let it set up. Just have to pay attention to make sure you have correct alignment and depth.
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| Artfrombama |
Nov 27 2025, 10:54 AM
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#5
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Artfrombama Group: Members Posts: 408 Joined: 21-January 24 From: North Alabama Member No.: 27,870 Region Association: South East States
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I suggest bonding the rubber to the bumper with panel bond. May require roughing up the chrome under the rubber a bit...
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| Garland |
Nov 27 2025, 12:30 PM
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#6
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Restoration Fanatic Group: Members Posts: 1,424 Joined: 8-January 04 From: ......Michigan...... Member No.: 1,535 Region Association: Upper MidWest
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QUOTE(FlacaProductions @ Nov 27 2025, 11:40 AM) I successfully used JB Weld years ago to place a stud that had pulled out of a rear lower spoiler on a 944 Turbo - very similar material to the 914 bumper tops. I'd try drilling it out, fill the hole with JB and then insert a new stud and let it set up. Just have to pay attention to make sure you have correct alignment and depth. (IMG:style_emoticons/default/agree.gif) Exactly! J&B |
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| 914Sixer |
Nov 27 2025, 12:58 PM
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#7
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914 Guru Group: Members Posts: 9,362 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Stud was in a metal washer. Can be drilled and tapped, JB optional if needed.
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| 914rrr |
Dec 17 2025, 05:26 PM
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#8
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Senior Member Group: Members Posts: 1,999 Joined: 1-July 03 From: Knoxville, TN Member No.: 874 Region Association: South East States |
It's been several years, but IIRC, I was able to weld a washer to a suitable bolt and weld it to the internal steel of the bumper top IF the internal steel of the bumper top is solid enough to be welded to.
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| rgalla9146 |
Dec 17 2025, 08:24 PM
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#9
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Advanced Member Group: Members Posts: 4,899 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
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QUOTE(914rrr @ Dec 17 2025, 06:26 PM) It's been several years, but IIRC, I was able to weld a washer to a suitable bolt and weld it to the internal steel of the bumper top IF the internal steel of the bumper top is solid enough to be welded to. (IMG:style_emoticons/default/agree.gif) Along the same line carefully use a small diameter hole saw to remove rubber around the remaining part of the stud. Mig a new 6mm stud to hopefully clean metal. Add support with JB weld. |
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