john crane: what he doesn't show you in video is to drill a 1/8 inch hole at each end of the crack to keep crack from get bigger after patched. then also grid the crack 1/8 of an inch then put epoxy on. let cure 24 hours then also heat cure the patch after. read direction not what this guy did.
Aurelio Rosales: for some people it works, for others it doesnt. it's worth a try befor buying a new manifold or whatever you are trying to fix.
jeffscomp: Was the car real loud with that crack in your manifold? I am getting exhaust fumes thru my heater vents when at a stop but my exhaust is still pretty quiet. I'm not sure what the problem could be and it is getting me sick.
Misster R: The stuff fails after a few days...regardless of how you prep it. I have patched mine a dozen times now..nothing out there is a permanent hole fix on an exhaust manifold out of a frikken jar. I tried em all...and while this product blew everything else away...IT FAILS!
Daniel Keeton: Would you recommend this same process for an exhaust manifold crack that goes all the way around (right about where they all connect to the right though...) And yours is running smooth and everYthing still?
evilcowboy: Its ok stuff I guess but for something small like this you would have been better off using a harbor freight welder and closing the gap with that. Harbor Freight welders aren't good for much else but on exhaust work and body panels it seems to work just fine.
Howard Johnson: For the people that it didnt work, did they use a dremel to grind it down to bare metal?? and did it not work even with a dremel or grinder??
B17 Chowhound: I followed all instructions, Cleaned with a Dremel and acetone let stand for over 24 hours and after first drive it cracked and flaked off not worth the time or money.
Noneya Bizz: Hey RJ, Great video....take no crap from any of the trolls. PREP is king when doing something like this. Cut no corners and you'll see this stuff really work. And Yes QUIK 2400f and THERMO 2400F are the same.
debbie biro: sham wow
HenryMania: The people who find this stuff to crack is because it's not very tolerant towards vibrations.
Stuckneutral: I bought some QuikSteel to fix my crack and it said 2400F degrees right on the package, but it only lasted about 1200 miles before coming out. Luckily I had ordered a new manifold for my 2001 Civic because I discovered right after repairing the visible crack in front that it was also cracked in the back as well.
Nick Doe: If it didn't last, take the video down so others don't do this.
1fastdoorslammer: QUICKSTEEL AND THERMOSTEEL ARE NOT THE SAME! Quicksteel is only good to 500degrees F. You can't use it on a manifold. Thermosteel is good to 2400 degrees F. READ the friggin directions before you use things! I used Thermosteel on one of the exhaust manifolds in my motorhome which is on a Ford E350 chassis. It's a 460 V8. Getting the manifold off requires dropping the front suspension then the engine to the ground and chances are very good that at least one bolt will break off in the head. So I used this to fix the crack. That was about 5 years ago. It's still on there and I don't think you could chisel it off it's so hard. Like anything else you have to follow the directions precisely and you have to prep, prep, prep. Any job is only as good as the preparation. This stuff is used on satellites in space so there's no reason why it won't work on an exhaust manifold other than not preparing the surface properly and not following the directions.
Toonses: Amazing stuff for poor people which the majority of us are.
WT HECK: nice video
Neil dela cruz: I've been trying to pass the smog test. I had my o2 sensors changed and my CO passed the 15mph test but not the 25mph. The mechanic suspects that the teeny tiny crack on my manifold may be throwing the o2 sensor off therefore failing my emissions test. I just bought this quiksteel extreme...do you think it would help pass my smog? ( i hope it does. it's like $400-$500 to replace the manifold )
David L: Shyflirt1 was your check engine light on with the crack and could you recommend a replacement manifold/cat
How To Repair Cracked Exhaust Manifold With QuikSteel/ThermoSteel5
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