How To Repair Cracked Exhaust Manifold With QuikSteel/ThermoSteel




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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

Brandon West: how well has this held up?

Soloman36: 97 Honda Civic LX..... same crack as in the video. This was a very temporary fix - lasted about 1month... So, took the car to a muffler shop and they just welded the crack. I believe they used a Miller welding machine. I took the heat shield off and prep the area as in the video before taking it to the muffler shop. The charged me $10 and it took less than 5 minutes to weld. Check Engine Light has been off for several months now. I would recommend anyone to just take it to a muffler shop instead of wasting time and money trying this solution. Be sure to prep the area that needs to be weld.

kevin ledford: i used this on my 2000 mustang, passenger manifold as a temp fix until i can afford the 100 for a new manifold, has held up for 6 weeks so far, I used sanding wheel and wire brush on a dremel, degreased and applied it, i also used some aluminum exhaust tape and wrapped it good, just as extra measure, The key is to sand and clean good and let it cure 12-24 hours

Jason Plante: Is this product waterproof once it cures? I need to use something in the engine block with a lot of coolant flowing past it and I don't want it to deteriorate due to the fluid.

Cole Cormier: freak you Jake! I bet you a greasy mechanic trying to rip people off when this stuff works great. It will flake off if you either don't mic it properly or don't clean the surface properly before application. Kiss my ass Jake!

Cole Cormier: @Jake Saratoga

Jake Saratoga: No it wouldn work. A factory exhaust system has quite a bit of back pressure and it would blow the hole back out. Best bet is to get another manifold from a junkyard or get it brazed.
Rating:
How To Repair Cracked Exhaust Manifold With QuikSteel/ThermoSteel 5 out of 5

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How To Repair Cracked Exhaust Manifold With QuikSteel/ThermoSteel