Bent header collector flange??? - Team Camaro Tech
Tech 2002 General Tech questions from 2002
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post #1 of 13 (permalink) Old Jul 3rd, 02, 02:56 PM Thread Starter
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Join Date: May 2001
Location: Mass
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I bent the collector flange on my exhaust system..I have tried 2 dead soft aluminum gaskets and I stll get a leak at the collector..(The flange that tightens it to the header is bent..Over tightened)
I remember seeing something that actualy replaces the collector flange made out of thick aluminum..It actually comes in 2 pieces you cut off the old one and slide this on and bolt it to your header giving you a solid seal to the header..

Anyone familiar with this..I need a name for it and a place to purchase it...

Thanks in advance

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post #2 of 13 (permalink) Old Jul 4th, 02, 01:55 AM
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frank
 
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Why not try straightning it? Heres an idea that may work. Take a couple pieces of keystock (1/2x1/2) should do it and using clamps, clamp the ends to the collector. Now use some more clamps in the middle, and it should pull the whole thing out straight.
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post #3 of 13 (permalink) Old Jul 4th, 02, 04:27 PM
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Jc whitney sells the repair collector that your talking about.
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post #4 of 13 (permalink) Old Jul 4th, 02, 05:15 PM
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why not just do what i did- cut off the 3 bolt collector, and use stainless steel band clamps on it. get them tight, and they don't leak. and they will not get caught on anything and bend a header like happened to me. the bands are about $10 a piece and can be purchased at any good parts store or diesel mechanic shop. might seem kinda spendy, but you'll never have to look at them again if you don't want to.

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1971 Nova(looks like 69 camaro from underneath!)
355sb, vortec heads, HOT cam,T-10 tranny, 3.70 gears 16X8" IROC wheels. 12" Corvette brakes on the way.
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post #5 of 13 (permalink) Old Jul 5th, 02, 12:33 AM Thread Starter
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OCHRIS..I have looked all over the JC Whitney book and web site..and have found ZIP.Do you have a part #

NOVADERRICK..I don't quite get what you are describing with the bands...But I would rather not cut off the collector..

Someone here has to know what I am talking about..The summit tech new..could describe it to me in detail..just couldn't tell me where to get it or the correct name..He called collector repair flange(Sounds Good but I don't think it is correct)...
Thanks again I appreciate all the response

------------------
Restored 68 Camaro R/S 327 4 speed
-------------------------
Restored 55 chevy Belair
Blown, Fuel Injected
http://community.webshots.com/user/badcaiman
-------------------------
76 Limited edition T/A # matching
-------------------------
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-------------------------
79 Corvette..Frame off restoration..(Don't ask WHY )
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post #6 of 13 (permalink) Old Jul 5th, 02, 06:38 AM
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I've always pinned the collectors together with loose bolts and using 2 hammers (one on each side) and have brought them together... for a while...
I like the stainless clamp idea, i use them on my diesel truck with great success
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post #7 of 13 (permalink) Old Jul 5th, 02, 10:30 AM
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Bill
 
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Bad,
What most people do not realize, is that the flange itself is not what the gasket seals on. It can be bent a fair amount nd still work. If you look at the front end of your actual exhaust pipe, you will notice that it has a slight lip on it. This is what the gasket actually seals on. If the lip is bent up, or badly corroded, it does not matter how good the flange is, it still will not seal. Take a very carefull look and you will see what I am talking about. Make sure everything is straight and it should seal up, even with the bent flange.

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post #8 of 13 (permalink) Old Jul 5th, 02, 11:33 AM
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I didnt see it in the catalog either.I bought it about two years ago.I still have one if you still need it.Let me know.
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post #9 of 13 (permalink) Old Jul 5th, 02, 01:07 PM
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here is what i am talking about

http://www.jegs.com/cgi-bin/ncommerc...80&prmenbr=361
it just wraps around the pipe and clamps evenly all around. after using these, i don't think i can ever go back to regular header flanges or exhaust clamps.

------------------
1971 Nova(looks like 69 camaro from underneath!)
355sb, vortec heads, HOT cam,T-10 tranny, 3.70 gears 16X8" IROC wheels. 12" Corvette brakes on the way.
see pics here http://community.webshots.com/user/novaderrik

[This message has been edited by novaderrik (edited 07-05-2002).]
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post #10 of 13 (permalink) Old Jul 5th, 02, 05:10 PM Thread Starter
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68RAGTOP..I have thought of your hammer idea..But don't have the room..The entire exhaust system is welded..

BILLK..I know the lip you are referring to..and it appears in good shape..no rust..The however the collectors flange does have a good blend(always seem to overtighten things )..I have even tried double dead soft aluminum gaskets..Still leaks

OCHRIS..Is ther a chance you have a pic..just to make sure it is what I am talking about..

NOVADERRIK..I see now what you mean..But still would rather not cut the header..But won't dismiss the idea either..

Thanks guys I really appreciate all the help

------------------
Restored 68 Camaro R/S 327 4 speed
-------------------------
Restored 55 chevy Belair
Blown, Fuel Injected
http://community.webshots.com/user/badcaiman
-------------------------
76 Limited edition T/A # matching
-------------------------
26 Ford Roadster..Pro street
-------------------------
79 Corvette..Frame off restoration..(Don't ask WHY )
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post #11 of 13 (permalink) Old Jul 7th, 17, 06:58 PM
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Anthony
 
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Billk raised a important point about the flair part of a separated or 2 part flange pipe. Another consideration that should b mentioned is the result of heat and vibration in the connecting flanges. I had continuing failures at the flanges. Flattening and replacing the gasket was not enough. Vehicle inspections due to leaks at the flanges resulted in rejection stickers. I found something that worked.
C Flange Bracket
https://youtu.be/zBdFKlVRh48
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post #12 of 13 (permalink) Old Jul 7th, 17, 07:01 PM
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Anthony
 
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C Flange Bracket info
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post #13 of 13 (permalink) Old Jul 8th, 17, 04:47 AM
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mike
 
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Re: Bent header collector flange???

I also cut the flanges off and used slip on collectors and have more ground clearance and have never had to touch them again.
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