 JB weld? - 928 screw up.... |
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| Scott S |
 Feb 2 2009, 10:32 AM
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#1
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Small Member  Group: Members Posts: 1,697 Joined: 30-April 03 From: Colorado Member No.: 633  |
Hi All -
Was at a Superbowl party where a pal showed up in an older, fairly beat 928. We started tinkering but primarily just did some cleaning. It was a nice day, so we did some degreasing of the motor - it actually came out pretty darn nice. As I was wiping off the intake, I took a small wire brush around the silver Porsche crest located on the top just to get some last remaining yuck out of the pours of the intake. I didn't even get the chance to actually scrub - the crest came off with litterally no pressure. It is not a mechanical fit and you can see the remnance of some type of clear/yello epoxy. I felt terrible. Will something like JB weld work to repair this? Any other suggestions? I am concerned about the heat. I dont want to add to this guys pain by having this crest fall into the belts later on -although it was pretty clear that this was close to happening already. I just used Simple Green to clean the thing - I cant imagine that would have eaten away at that epoxy. Here is a pic. Thanks - Scott S Attached image(s) 
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| mightyohm |
Feb 2 2009, 10:38 AM
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#2
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Advanced Member Group: Benefactors Posts: 2,277 Joined: 16-January 03 From: Seattle, WA Member No.: 162 Region Association: Pacific Northwest  |
I think it would be worth a try. JB Weld is rated to very high temperatures.
You have to clean everything very thoroughly first. If both surfaces are somewhat porous that should give the JB Weld more "bite". |
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| brant |
Feb 2 2009, 10:52 AM
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#3
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914 Wizard Group: Members Posts: 11,641 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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JB weld should work
make sure you de-grease the mating surfaces to get it to stick another option might be RTV its heat, gas, and oil resistant and sticks well to stuff b |
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| Eric_Shea |
Feb 2 2009, 10:53 AM
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#4
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PMB Performance Group: Admin Posts: 19,279 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains |
JB would be my choice.
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| anderssj |
Feb 2 2009, 11:22 AM
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#5
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Dog is my copilot... Group: Members Posts: 1,666 Joined: 28-January 03 From: VA Member No.: 207 Region Association: MidAtlantic Region
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I've had very good luck with "Marine-Tex Gray"--but it takes longer than JB to set up . . .
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| Joe Ricard |
Feb 2 2009, 11:30 AM
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#6
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
JB weld works great IF. You say to your Buddy "Hey Hold my beer"
What it works everytime for me. Dang that almost looks like my old car. Except the washer tank filler spout isn't broken off. |
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| rick 918-S |
Feb 2 2009, 01:05 PM
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#7
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Hey nice rack! -Celette Group: Members Posts: 20,506 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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I would use Yamabond 4. Get the silver stuff. It looks like aluminum so it will blend well if a little should show at the edge of the crest. It drys like hard rubber or vinyl. I would use JB hi-temp if you don't have Yamabond.
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| charliew |
Feb 2 2009, 10:06 PM
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#8
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
That intake will probably never see 250 f so I would think a good silicon gasket maker like the yamer hammer bond or honda bond will work good.
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