JB weld doesn't like heat.. or so i hear.. i've never tired it. I replaced mine for 40 bucks.. i know that can be alot when your straped.. but fire is bad
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11:42 PM
Mar 5th, 2002
ka4nkf Member
Posts: 3702 From: New Port Richey, FL USA Registered: May 99
In the past I had to use a muffler repair kit. If you can see/access the crack, just put the putty around it, then wrap it with the metal tape. It worked perfect for a long time. I think it cost about 3 dollars.
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12:41 AM
Fierowrecker Member
Posts: 1858 From: Lowell, MI. USA Registered: Mar 2001
Cargo makes a product called Thermo-Steel that is good for temperatures upto 1500 degrees farenheit. There are also epoxy compounds available that are suitable upto 500 degrees or so; may work for a temporary fix.
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12:56 AM
MaxDaemon Member
Posts: 933 From: East Wenatchee, WA Registered: Feb 2002
Originally posted by Spektrum-87GT: ever been tried? think it'll work? hey, when you have no money you're willing to try anything
Right about JB Weld - it just melts right out. I DID "weld" in an oxygen sensor though, right INTO the exhaust manifold. Used something with the brand of CARGO, it's called ThermoSteel and their website is at www.kalimex.co.uk/thermosteel.html. I have NO idea what this stuff is, but it took JBWeld 4 miles to blow out, this lasted until I sold that Fiero at least a year later.
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12:58 AM
TheTechnician Member
Posts: 177 From: Bentley, Alberta , Canada. Registered: Feb 2002
Hey Spektrum I think your best bet is to get the EGR tube crack Brazed shut. I've done it on several different types of vehicles and it is a reliable and if done properly permanent fix.
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02:14 AM
tesmith66 Member
Posts: 7355 From: Jerseyville, IL Registered: Sep 2001
Go to the boneyard and get one off of a 2.8 Camaro or Firebird. All you need to do to make it fit is elongate the mounting holes on one end. Mine cost $1.00 and works GREAT!
------------------ Timothy E. Smith 1986 SE V6 BACK ON THE ROAD AGAIN!!!! 1984 Coupe 1996 Ford Probe GT 1999 Chevrolet Silverado Z71 1975 Chevrolet ElCamino SS
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08:11 AM
GTDude Member
Posts: 9056 From: Keysville, Virginia, USA Registered: Nov 2001
Will Thermosteel work on an exhaust manifold crack. This crack is easy to get to and would be alot easier to patch it then replace the entire manifold.
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12:43 PM
PFF
System Bot
GT GT 87 Member
Posts: 398 From: Palatine Il. USA Registered: Jan 2001
Originally posted by cscougar: Will Thermosteel work on an exhaust manifold crack. This crack is easy to get to and would be alot easier to patch it then replace the entire manifold.
Thermosteel if used correctly will provide a good long-term patch. The problem is thermal expansion and contraction of the metal will break down the bond over the long term. But, again, it will last a long time. I did this to a manifold and it lasted almost two years on a daily driven car. However, the best fix is to take your manifolds and cross-over pipe to a machine shop and have all the welds gone over. ALSO have the flanges on the manifolds run over a surface-plainer after being welded.
Luck!
[This message has been edited by mindscape (edited 03-05-2002).]
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08:09 PM
FieroJoe Member
Posts: 2314 From: Southfield, MI Registered: Nov 2000
I used some of the muffler putty stuff to cover up the leaks that were still there after I tried brazing mine. By mouth (yeah I know, tastes gross if you get some in you) it seems to hold vacuum. The muffler putty was made by permatex.
Where are you people getting this thermosteel? I might just pick some up in case the muffler putty busts out...
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09:20 PM
Mar 6th, 2002
MaxDaemon Member
Posts: 933 From: East Wenatchee, WA Registered: Feb 2002
Where are you people getting this thermosteel? I might just pick some up in case the muffler putty busts out...
Seems to me mine came from a small non-chain autoparts store. I posted a link to their webpage up above someplace - might have a list of dealers or be able to order online. Also, I bet JCWhitney would have it.
Vic
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12:53 AM
skitime Member
Posts: 5765 From: Akron, PA, USA Registered: Aug 2000
Originally posted by TheTechnician: Hey Spektrum I think your best bet is to get the EGR tube crack Brazed shut. I've done it on several different types of vehicles and it is a reliable and if done properly permanent fix.
I agree this was a permanent repair for me too.
------------------
Red 88 GT T-TOP 3800SC (very soon)
Red 86 GT
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08:52 AM
Aaron_v2 Member
Posts: 44 From: Quilcene,wa,usa Registered: Mar 2002
I tried the JB weld on my exhuast and it stunk and then dried and cracked and fell off. The problem is the fiero exhaust is very hot. It has to get up to 600 degrees just for the oxygen sensor to kick in. you need to get the muffler repair kit with the puddy like Wade87GT said, or go to the junkyard.
------------------ Red Rocket
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01:22 PM
mbramble Member
Posts: 852 From: Cantonment, FL Registered: Dec 1999
Mine was broken into 2 pieces. I used some copper wire and wrapped it around and around, starting well behing the break and going well beyond it. This held the two pieces securely together. Then I used the muffler repair paste and coated the entire wired area with it. Seems to be working fine.
