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Posts: 92
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JB Welding
I have a broken tab on my alternator air deflector.Has anyone ever used I believe it's called JB Weld to fix one of these deflector to alternator connecting tabs and if so,tips and how successful was it would be greatly appreciated.Regards,
Peter 3.2 carrera |
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04-08-2010, 03:04 PM
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Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
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Which tab is it? I believe there are three on top and one on the bottom. If one of the top ones is gone, I wouldn't worry about it, as long as the alternator is secured to the frame.
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04-08-2010, 04:02 PM
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porsher
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it's worth a try.
make sure everything is completely clean, not a hint of oil/grease anywhere. maybe make up a splint to reinforce the tab and increase the bond area. also rough up the surface to give the epoxy something to key to.
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86 911 Race Car, with a few 993 bits in the boiler room 79 928 Race Car 88 928 Becoming a Race Car |
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04-08-2010, 04:19 PM
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Detached Member
Join Date: May 2003
Location: southern California
Posts: 26,964
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I'd try it, no load. If it doesn't work you've not lost much.
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Hugh |
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04-08-2010, 05:12 PM
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Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
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Quote:
JB is very tough stuff, however, you don't want that part to come loose and ingress into your alternator or fan. If there is no gap, and the parts fit flush, I have repaired non moving plastic components by literally welding them back together with a small soldering iron. Why don't you check the used parts Pelican website and spend a bit more time on this. You really want to do this right. Pelican member Tom Oxner has one for sale. you may pm me. Good luck, Gerry
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1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." Last edited by 86 911 Targa; 04-08-2010 at 05:37 PM.. |
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04-08-2010, 05:25 PM
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Slow and easy
[QUOTE=86 911 Targa;5284704]Peter,
JB is very tough stuff, however, you don't want that part to come loose and ingress into your alternator or fan. If there is no gap, and the parts fit flush, I have repaired non moving plastic components by literally welding them back together with a small soldering iron. Why don't you check the used parts Pelican website and spend a bit more time on this. Pelican member Tom Oxner has one for sale. you may pm me. Good luck, Hi I will check around locally for one as well.Thanks for the word to the wise.I appreciate it. Regards, Peter |
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04-08-2010, 05:40 PM
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Absolutely spotless before placing epoxy
Quote:
 Regards, Peter |
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04-08-2010, 05:42 PM
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Orientation of air deflector
The deflector can only attach one way on the back off the alternator,right? I mean you cannot reverse the orientation of the deflector by mistake can you?Here is how I have it fitted..is this right?. I'm sorry for the bother,it just looks wrong for some reason.I have to say it fitted on perfectly this way..thank you and regards, Peter.
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04-08-2010, 05:53 PM
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Location: sectors R&N, SE Pa
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It looks correct to me Peter, I say this based on the cutout in the deflector body located on 'top' of the Alternator revealing the voltage regulator.
Here is a shot of mine during disassembly - it is undone, but the orientation if very similar. I made a boo boo on mine during install you might want to be aware of. somehow I managed to gouge a chunk of insulation on the large gauge red wire. The smaller forward deflector hole edge caught a kink in the wire. 
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Dan '87 Targa Carrera 3.2 - Fabspeed Cat Bypass, M&K Muffler, SW Chip Venetian Blue |
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04-08-2010, 06:38 PM
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Orientation of deflector appears correct
Hi Dan.Thanks for the picture.Based on it it would appear mine is on correct..
"I made a boo boo on mine during install you might want to be aware of. somehow I managed to gouge a chunk of insulation on the large gauge red wire. The smaller forward deflector hole edge caught a kink in the wire." Thanks Dan I'll keep a sharp eye out when I put her back in. Regards, Peter |
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04-08-2010, 08:13 PM
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Location: South Surrey, BC
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Peter
If you are going by what I said earlier about JB weld or plastic welding. they are two different procedures. One is JB Weld, a two part epoxy that can be used to glue the parts back together or actually welding the plastic together or you can reform the part if a piece is missing with a plastic repair kit like the one that Eastwood sells. If you need a deflector I can sell you mine, my car has been off the road for eight years now so a few more days won't matter. Lorne M.
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04-08-2010, 09:35 PM
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Sally Ann mode
Quote:
Thank you kindly for the helpful tips.I have read them and will keep them in mind if and when I use a commercial product described.I have jury rigged the deflector somewhat and will give it a go.What I have done is this.The broken bottom tag on the deflector snapped off leaving a small ridge above it.I have built a foundation on the the rear of the projecting alternator bolt the one open for the air deflector tab to fit over(broken one)...here just a sec..This picture should give you a better idea about what I'm talking about.Thank you very much for you offer of selling me your deflector.It's appreciated. Best regards, Peter  ..it's my car doctor,it's worrying me! Last edited by mrbeasley; 04-08-2010 at 10:58 PM.. |
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04-08-2010, 10:51 PM
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Location: United Kingdom
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forgive my ignorance, but what is JB Welding?
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Pete Porsche, there is no substitute! 911 Coupe 1974 plus bits | Stuttgart eXchange | Channel P101tv |
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04-09-2010, 01:42 AM
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Jacksonville. Florida https://www.flickr.com/photos/ury914/ |
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04-09-2010, 05:23 AM
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Magic Goo
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Cary 77 Carrera RS w/3.2 #59 73 914S 2.0 AG 73 914 1.7 Driver ( daily driver, under complete rustoration ) 74 914 2.0, 71 914 Tub, 74 914 2.0 Tub + 73 914 donor |
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04-09-2010, 06:00 AM
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I'm sort of loosing track of all the messages from the people kind enough to respond to my messages regarding the current issue with my carrera.If I missed anyone I apologize.You have all been great and I really don't know what i would have done without all of your help.Again thanks very much.It's appreciated.
Peter |
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04-09-2010, 06:25 PM
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j-bwelded broken tab (large area)and reinforced unbroken tab
Quote:
  Twenty minutes after application.To dry overnight then sanded gently before intallation.. 
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04-10-2010, 06:27 PM
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Looks good! Sand the bottom nice and flat. Put a few dabs of JB on the rivets of the vanes, they tend crack as well.
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Kurt |
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04-10-2010, 06:40 PM
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can you use magic goo on any material or only plastics?
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Pete Porsche, there is no substitute! 911 Coupe 1974 plus bits | Stuttgart eXchange | Channel P101tv |
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04-11-2010, 02:32 AM
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I've used it on aluminum and metal.
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Jacksonville. Florida https://www.flickr.com/photos/ury914/ |
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04-11-2010, 05:54 AM
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| air deflector , alternator |
1973 Porsche 914 1.7 very modifed
