Found this comment you may find useful............This product is ok! I used it to seal large cracks in my exhaust manifold......This product in order to be effective, should cure for at least 36hrs, 48hrs at best; several layers should be applied once the first layer begins to cure after 2 hrs; otherwise, without proper application, you would think that this product isn't any good....... as for the remaining unused mixture, it shouldn't be discarded; I have discovered that it could be stored in the freezer indefinitely.......it would take 7 minutes to completely defrost for reuse. In the end, I was lucky to saved some money by not having to replace my exhaust manifold. Not bad at all!
There was another comment.............Worked good to patch small holes in exhaust. I tried using it in very humid conditions and it kept wanting to drip off from the pipe I was trying to patch. It did not set up in 2 -4 hours like it stated. Maybe I was using too much at one time so I removed a good amount of what I put on (putting it back into the container) and let it sit overnight. The next morning it was set up so I added another layer, and then a final layer the next day. The material still in the container was still workable after two - three days. Actually it was more workable after that time as it was stiffer lit putty and stayed put when applied. I would suggest mixing the product up very well and letting it sit to thicken up before using.
I ordered this product and am still waiting for it to arrive. In the mean time I had some regular JB quick weld on hand, so I used that on an exhaust pipe leak between my drivers and passenger seat. 700 miles later I crawled under the car with a bottle of windex and sprayed the repair area, while I had a hose hooked to the exhaust of my shop vac to pressurize the exhaust system. No leaks like before. Amazing JB quick weld held up on an exhaust pipe, since it is only rated for 450 degrees. I'm sure an exhaust manifold gets much hotter than the exhaust pipe though.
@@GumptionGarage It was supposed to arrive yesterday, but did not come, so I am going to file a complaint with e-bay and try to get a refund. The only video I could find that the person actually had luck with repairing an exhaust manifold was "Exhaust Manifold Repair THE #1 FIX! CHEAP EASY no tools required". He used exhaust wrap and furnace cement, so that is what I ordered.
The heat wraps help the engine bay not get as hot, but doesn’t let the headers cool and they get so hot they can crack. Take the tape off and look into a ported hood. Will save money in long run instead of cracking headers.
You shouldn't have heated it up with the heat gun. The crack was already less than 1/8 inch and heating it expands the metal which shrinks the crack itself.
I would take the smallest drill bit I could find, and drill through each end of the crack, to insure that it wouldn't continue to grow. Then, I would gouge out the crack, to enable silver solder to flow into it like a creek. Quick & easy with a cheap propane torch that we all have. BUT if the manifold might get hotter than the melting point of the silver solder, I would get a mapp gas bottle for the torch, and I would braze it.
That's all good ideas! Except it was a $40 ebay header.. silver solder probably cost more. I replaced it with a much nicer Megan racing header. Check out my videos for that one.
Even using a Dremel tool can open it up to get it to bond and stick also. Drilling is a great way but good chances of breaking off bit. He didn't apply it correctly us using heat to hurry the dry process, it works pretty fast. I bet by the time he had it all back TOGETHER if done right, then it wood of been harden enough if done right. Its as hard as a WELD. I also filled rot holes in fenders by filling with SPRAY Foam, then skim coat over hole and much better than holes there, then buy matching paint and quick paint and better than rot holes. I dont thing's that i wouldn't want done to me, but I heard of people putting in car door gap so it can't open, pretty rude and fast to do at a store. I've heard of it and Been told they had to use other door to get in, again very rude, I DON'T recommend this to anyone at all. If you DON'T want it done to you, then dont do to others. I laughed for what happened and then hear that, I'm like that's a bit overboard now. Maybe oil on windshield at most so he have to buy cleaner and paper towels. At least no damages done providing they don't drive like that.
@@GumptionGarage would of been nice to know from original post. J.B. Weld works real good if ever needed on stuff. Just clean and prep proper. $5 over $200 if don't have at time.
I have the same problem I used it and had the same results. It’s garbage. I should’ve just used the heat wrap instead. Don’t waste any more of your money on that.
You put too much on. It is like applying too much wet paint... The outside cures faster than the inside and the instructions don't expect you to apply that much and so thick. Not to mention when you apply that much it cures unevenly and doesn't create a strong bond.
I have found that JB WELD makes a good product, overall. This one, in this instance, didn't preform the way I had hoped... But I didn't use it as directed either.. and I super rushed it.. good luck in your future endeavors.
The best product to use for exhaust manifolds (without removing the manifolds) is black furnace cement. Imperial makes it. There are videos of people using it with over 3 years of successful hold.
You failed to use it right. You got the pipe hot and did not allow the JB weld to easily flow and sink into the crack.
Found this comment you may find useful............This product is ok! I used it to seal large cracks in my exhaust manifold......This product in order to be effective, should cure for at least 36hrs, 48hrs at best; several layers should be applied once the first layer begins to cure after 2 hrs; otherwise, without proper application, you would think that this product isn't any good....... as for the remaining unused mixture, it shouldn't be discarded; I have discovered that it could be stored in the freezer indefinitely.......it would take 7 minutes to completely defrost for reuse. In the end, I was lucky to saved some money by not having to replace my exhaust manifold. Not bad at all!
There was another comment.............Worked good to patch small holes in exhaust. I tried using it in very humid conditions and it kept wanting to drip off from the pipe I was trying to patch. It did not set up in 2 -4 hours like it stated. Maybe I was using too much at one time so I removed a good amount of what I put on (putting it back into the container) and let it sit overnight. The next morning it was set up so I added another layer, and then a final layer the next day. The material still in the container was still workable after two - three days. Actually it was more workable after that time as it was stiffer lit putty and stayed put when applied. I would suggest mixing the product up very well and letting it sit to thicken up before using.
Ron Hind h
I ordered this product and am still waiting for it to arrive. In the mean time I had some regular JB quick weld on hand, so I used that on an exhaust pipe leak between my drivers and passenger seat. 700 miles later I crawled under the car with a bottle of windex and sprayed the repair area, while I had a hose hooked to the exhaust of my shop vac to pressurize the exhaust system. No leaks like before. Amazing JB quick weld held up on an exhaust pipe, since it is only rated for 450 degrees. I'm sure an exhaust manifold gets much hotter than the exhaust pipe though.
Did it come? Have you tried it yet? I'm curious as to how well it works for you.
@@GumptionGarage It was supposed to arrive yesterday, but did not come, so I am going to file a complaint with e-bay and try to get a refund. The only video I could find that the person actually had luck with repairing an exhaust manifold was "Exhaust Manifold Repair THE #1 FIX! CHEAP EASY no tools required". He used exhaust wrap and furnace cement, so that is what I ordered.
That's awesome. Good luck!
i feel like no one see's the 24hr part
Those aren't even cast manifolds. Just weld it
The heat wraps help the engine bay not get as hot, but doesn’t let the headers cool and they get so hot they can crack. Take the tape off and look into a ported hood. Will save money in long run instead of cracking headers.
Or just don't buy the 40 dollar one. Haha.
You shouldn't have heated it up with the heat gun. The crack was already less than 1/8 inch and heating it expands the metal which shrinks the crack itself.
What about heating afterwards?
Did not had time to cure.. you failed to folow instruction
Cool
aren't you supposed to apply while room temperature then heat to activate?
I would take the smallest drill bit I could find, and drill through each end of the crack, to insure that it wouldn't continue to grow. Then, I would gouge out the crack, to enable silver solder to flow into it like a creek. Quick & easy with a cheap propane torch that we all have. BUT if the manifold might get hotter than the melting point of the silver solder, I would get a mapp gas bottle for the torch, and I would braze it.
That's all good ideas! Except it was a $40 ebay header.. silver solder probably cost more. I replaced it with a much nicer Megan racing header. Check out my videos for that one.
Even using a Dremel tool can open it up to get it to bond and stick also. Drilling is a great way but good chances of breaking off bit. He didn't apply it correctly us using heat to hurry the dry process, it works pretty fast. I bet by the time he had it all back TOGETHER if done right, then it wood of been harden enough if done right. Its as hard as a WELD. I also filled rot holes in fenders by filling with SPRAY Foam, then skim coat over hole and much better than holes there, then buy matching paint and quick paint and better than rot holes. I dont thing's that i wouldn't want done to me, but I heard of people putting in car door gap so it can't open, pretty rude and fast to do at a store. I've heard of it and Been told they had to use other door to get in, again very rude, I DON'T recommend this to anyone at all. If you DON'T want it done to you, then dont do to others. I laughed for what happened and then hear that, I'm like that's a bit overboard now. Maybe oil on windshield at most so he have to buy cleaner and paper towels. At least no damages done providing they don't drive like that.
@@GumptionGarage would of been nice to know from original post. J.B. Weld works real good if ever needed on stuff. Just clean and prep proper. $5 over $200 if don't have at time.
if all else fails refe refer to the instructions!
How u did your own technique to apply it and cure it, then say it's junk?
You saw how I followed the instructions on the muffler part right?.. that still fell apart.
Use the original 2 part system, it will work or go to a welder. The metal has to be super clean to work. All around not just the cracks
One third original jb weld plus beach sand is equal to high priced extreme heat jb weld !!!
Has this guy ever thought that his exhaust cracked because it overheated from the exhaust wrap tape...
Yup, that's why I stopped using them years ago, when I made this video. Did you ever think of that?
Thank you so much.. took long enough.. ha!
It worked great for a week the crumbled.
I have the same problem I used it and had the same results. It’s garbage. I should’ve just used the heat wrap instead. Don’t waste any more of your money on that.
So how did you fix it in the end?
Why not simply weld it or take it to someone who can and save time effort and money?
will it work on a aluminum resonator ?
Why don't u just get it weld with electric metal welder.
so you have to use the full tub?
No, I still have most of the tube. It's a lot like rtv. Good for a long time.
It's stainless, purge and weld that shit
Do not buy i did this right hardened perfect then crumbled off I let sit for three days.then a week in half later i look its crumbling off.
Good job
Jb weld has a high heat formula.I think it would work much better
High heat wont last 20 minutes, extreme is the only way to go
@@4lifebmx420 wasn't that the extreme heat? Not sure why that didn't work in this case.
follow directions next time.
Save your money. Have it welded by someone who can.
I can't mines titanium
What about when you are doing a budget dirtbike build and you need to do case repair
You put too much on. It is like applying too much wet paint... The outside cures faster than the inside and the instructions don't expect you to apply that much and so thick.
Not to mention when you apply that much it cures unevenly and doesn't create a strong bond.
Lmao ...you have it off just replace it
I said in the video I had a new one coming in the mail.
I thought I had done something wrong turns out it’s just a bad product
I have found that JB WELD makes a good product, overall. This one, in this instance, didn't preform the way I had hoped... But I didn't use it as directed either.. and I super rushed it.. good luck in your future endeavors.
The best product to use for exhaust manifolds (without removing the manifolds) is black furnace cement. Imperial makes it. There are videos of people using it with over 3 years of successful hold.
sell it , buy a v8 U.S.A
Still liking that v8, I'm getting 38 mpg.