 Repair rubber bumper screws?, or am I screwed??? |
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| tadink |
 May 21 2017, 01:16 PM
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#1
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Member  Group: Members Posts: 379 Joined: 28-December 09 From: Napa Member No.: 11,181 Region Association: Northern California  |
Having sold a rubber bumper top (that is otherwise in very nice condition) I was in the process of removing it from my chrome bumper.
It is held on by a number of bolts embedded in the rubber - and as luck would have it, the bolts and broke off before the nut would move (having rusted itself securely to the bolt!) so - the question: how can you repair and modify the embedded bolts / plugs so that the rubber bumper top can be affixed to a new chrome bumper?? As the pix show - I have 1 bolt remaining, 4 that have sheared off, and one where the 'plug' in the bumper has disintegrated. The missing plug gives me the most hope, as I'm sure one might be able to remove the other 'plugs' and reconfigure something that would hold the bolt. Thoughts or suggestions? tom    |
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| mb911 |
May 21 2017, 01:46 PM
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#2
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914 Guru Group: Members Posts: 6,801 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest 
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Way back when I drilled and tapped and threaded in a stud the molded in washer on the bumper tops
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| r_towle |
May 21 2017, 05:35 PM
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#3
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Custom Member Group: Members Posts: 24,560 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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I guess you could find some new rubber with imbedded studs similar to what is used as vibration isolators on many electric motors and pumps. I seem to recall seeing them at decent hardware stores.
Epoxy them in place? |
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| rhcb914 |
May 21 2017, 06:25 PM
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#4
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member Group: Members Posts: 358 Joined: 3-February 04 From: Boston, MA Member No.: 1,626 |
QUOTE(mb911 @ May 21 2017, 03:46 PM)  Way back when I drilled and tapped and threaded in a stud the molded in washer on the bumper tops (IMG:style_emoticons/default/agree.gif) If there is enough metal to tap that will work for a temporary fix. Use some lock tight and go easy on the torque. |
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| GaroldShaffer |
May 21 2017, 06:36 PM
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#5
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You bought another 914? Group: Benefactors Posts: 7,620 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None 
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A few years back I picked up a parts car with a great looking bumper top. When I went to pull the bumper top I found that all the studs were broken off and someone used self taping screws next to the broken studs to hold the top on. You couldn't tell from looking at it on the outside and it was held on just as god as the studs& nuts did. Maybe a option to try? (IMG:style_emoticons/default/confused24.gif)
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| bandjoey |
May 21 2017, 08:14 PM
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#6
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bandjoey Group: Members Posts: 4,923 Joined: 26-September 07 From: Bedford Tx Member No.: 8,156 Region Association: Southwest Region |
The inside is rust toast. Carefully drill out the stud and dig out all the rust you can. Epoxy in the new bolt. Get the spacers for those studs from 914rubber before putting the pad back on. Goood luck. It workes
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| Mikey914 |
May 21 2017, 11:05 PM
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#7
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The rubber man Group: Members Posts: 12,638 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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Epoxy will buy you some time. How much depends on how bad the rust is internally. Eventually, you will need a new one, but you could get a few years out of this one.
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| JFJ914 |
May 22 2017, 09:10 AM
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#8
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Senior Member Group: Benefactors Posts: 813 Joined: 13-June 03 From: Alpharetta, GA Member No.: 814 Region Association: South East States
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RTV works.
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| tadink |
Jun 6 2017, 11:57 AM
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#9
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Member Group: Members Posts: 379 Joined: 28-December 09 From: Napa Member No.: 11,181 Region Association: Northern California |
Well, Bummer, my buyer thinks that is all too much work!
SO, THE RUBBER BUMPER TOP IS BACK FOR SALE!! $165.00 OBO |
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| IronHillRestorations |
Jun 6 2017, 12:32 PM
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#10
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I. I. R. C. Group: Members Posts: 6,714 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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You don't show the top side. If there's dimples across the top along the lateral indentation, and if you can squeeze it and hear crunching, it's toast.
FWIW, no mounting studs will make it a tough sale. |
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| gereed75 |
Jun 6 2017, 12:35 PM
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#11
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Senior Member Group: Members Posts: 1,239 Joined: 19-March 13 From: Pittsburgh PA Member No.: 15,674 Region Association: North East States
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A while back I did a top repair with black 3M Marine 5200. Thread -
http://www.914world.com/bbs2/index.php?sho...=240803&hl= It worked like a champ. The adhesion to the old rubber is incredible. So good that I think it could be used to hold new studs in place. You will have to clean out the old ones and build a new nut plate and locate it carefully, but I suspect that with some perseverance it will work. |
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