i went to three mechanics that said the car wasn't fixable. I was prepared to junk it so i threw in a bottle, if i can get a few more months out of it while waiting for a new car because wait times for new cars are insane right now i'm happy. It was 30 bucks and so far so good. I wouldn't trust it going any long distance but for my work commute it works for now.

Well if you guys didn't charge 2 grand to replace it maybe we wouldn't need to use the sealers. Huh?

We appreciate the video and effort also for not trying to be against sealers I can see you prefer the official repair but cars don’t last long you fix one thing then next thing you know it’s totaled so non mechanics prefer temporary fix

I tried it on a K16 K series and it worked perfectly, i will eventually get around to doing a proper seal but for now it is what it is gotta make do with what i can

I had a head gasket blow on a Lexus. It was Winter and I attempted to use gasket liquids. I used the silver colored head gasket sealer, I will not mention the name. It was brand name. Seems to work for maybe a couple of months maybe less. I started losing antifreeze again so I removed all of the liquid water antifreeze along with the head gasket liquid as much as I could and then cleaned with tap water and then drained the tap water. Upon refilling I use distilled water and antifreeze recommended for Lexus. Then I used the copper-colored head gasket sealer. Again brand name. The copper seem to work a little longer possibly three-and-a-half to four months. All the chemical bottles I use said it was a permanent fix. That was not the case. I checked all the usual things like cracks in the radiator which there was none. Radiator hose leaks thermostat hose or thermostat housing leaks which there were none. So the engine got to where it finally wouldn't run much at all because of the water leaking into some of the cylinders. In my case it was cylinder 2 and 4 bank 2. A leak down test proved that it also had a leak on Bank 2. It was very slight but it was only cylinder three. The leak down test proved that was a gasket. It took four months for me to tear the head off due to work hours. I'm not a full-time mechanic but an engineer for an unrelated job. After removing the heads and inspecting the gaskets they were an off brand of Fel-Pro. I did not install these. they were installed by the previous owner. The gasket was called PrimeTorque. Which was an odd name. After some research I found out they were made by Fel-Pro. The car was a 2008 and I can't say exactly when the head gaskets replaced - however I believe it to be a absolutely shity job. I found bolts loose all over the place while taking the engine apart. However all of the main head bolts were extremely tight and I believe they were torqued to spec, but that was about the only ones. After removing the head gaskets, an inspection prove that the Silvery colored gasket sealer, had created some clogging areas specifically near the top of the cylinder. They were small amounts of silver caked around the top of the cylinder head. Some of the small passages were filled with the gray material. The gray material was definitely the head gasket sealer liquid however it was not hardened but it was soft and easy to remove with one finger. In my case I do not believe the silver material had completely clogged all of the passages. What I did find is that the silver material had hardened on small parts of the gasket however did not completely make a seal. I did not find traces of the copper material anywhere - except in the antifreeze. I could not find evidence that the copper material had hardened anywhere on the gasket. The break, in my case was between cylinder 2 and 4 mostly. That's where the head gasket was the worst. I could not find any evidence where the chemical had hardened like glass, as the bottle stated that it would. Anyway I'm replacing it with a new gasket and doing it the right way. That would be mostly by the book. I still haven't decided if I'm going to use the copper head gasket spray along with the multi-layer gasket that I purchased.

Every situation is different. And it depends on how severe the problem is. If you have a vehicle that is 20+ years old and is worth around $1500 or less with a blown head gasket, or warped head, is it worth spending $3-5K to have the head milled down? If the vehicle is on its last leg, this temporary fix will at least give you time to shop for another vehicle.... unless you have emotional ties to a piece of junk and want to invest time and money in something that isn't worth it. Otherwise, if the vehicle is relatively new and worth more than it costs to repair it, then YES by all means have the head milled and a new gasket installed.

1100 bars leak fixed my blown head gasket on my 96 honda vtec..white smoke coming from a tail pipe, coolant mixing with engine oil its all goned..it works!

First, I appreciate you sharing your experience. I am listening. I am currently using K-seal to help stop the coolant loss in my newly-built engine. I am yet to know the result. The K-seal instruction says it would take up to 10 days for minor coolant leaks. I am not "desperate", but in fact, I am trying it in the last resort because 3 separate highly-rated mechanics have diagnosed my engine with flying colours. The engine has been re-built. No evidence of coolant leakages, all engine components and hoses are dry as a desert, no evidence of mis-firing, no evidence of pressure losses of both the cooling system and the cylinders, the engine is very strong and revs like heaven, but I have to top up the 250ml of coolant for every 200 km of travel. It is a frustration to a point we all stood there scratching our heads and looking at each other. Take my words, I am more sceptical than you for this kind of cheap fix but as I said, it is the last resort without another options. If you have any suggestion, I am happy to try.

Thermalweld was the best decision I ever made for my 2001 Cadillac Seville with the notorious 4.6 Northstar. Sure, I could have got Northstar Performance head studs and bulletproof kit, but that'd be $1000+ in parts and $6000+ in labor. Thermalweld was $250 and after listening to Robert explain how it works and what makes it the real deal, I decided to trust him. It was either that for $250 or get rid of the car which I couldn't bring myself to do. My car wouldn't even start because of how much coolant had entered the combustion chambers. 11k miles later and still running like brand new. Definitely recommend.

I say it depend on the value of the car. If your a guy in highschool how bought a beatup car for $1500 bucks its not worth the $3500 to $5500 dollar job that will take a month in the shop. It will not be the same and there is no guaranteets will not have the same or another major issue. If for example its a classic car your late grandfather loved and left you it might be worth it. In the event you have no way to pay that much or its way over the cars value why not try a sealer if its going to be scrapped anyway. They might be a temporary solution. In that case start saving and trade it in or sell parts on on ebay when it dies.

how do you clean/flush the coolant system after using one of those sealers? what do you recommend to get that junk out?

I used a head sealer Blue devil on my skid steer diesel in 2005 it was a cracked head can you believe it still is holding as of today, Steel block , steel head. You could see the crack in the head when I did it and actually watched the sealer fill up the crack like melting glass But would I use it on a steel block to aluminum heads NO even if it fixed it its just temporary and you have all that crap in the engine blocking up other area's

Thanks for your video will it seal external coolant leak from head gasket

What your saying is exactly correct . Everyone thinks the special liquid will fix anything ! Like Magic !

Do u only remove the head to replace the head gasket ? Jetta 2012 se manual

I’m 15 trying to replace 04 4.7 Durango mls head gasket. Is any paste or glue required or is it just put in dry?

I have a 02 bravada definitely has a blown head gasket.Paid 1400 for it.A ur again has earned it's money back.Not worth fixing?Or is it?160.000 on her.Im leading towards yanking engine for parts and scrapping I have a s10 with 4.3 vortex also and other parts are interchangable.scrap or no?

The Bars Leak with ground copped in it worked for me.

Bro I got cvt Nissan mr20 engine. My problem I loose oil & now water recently I checked the oil and and it's a bit high and kind of like chocolate. What do I do change the engine? & it overheats. I got the car with metal radiator should I put back plastic after fixing my current problem?? Thanks in advance man

So, it's not recommended for an intake manifold leak (to outside) either?

I’m confused what does he mean “how is it going to seal in between everything” if the oil and/or coolant getting in between them passages and you add sealant in then the sealant will get in them same passages then correct? I’m not the best at cars and stuff but I’m I thinking about this wrong? And even if they aren’t the best to use wouldn’t it be worth trying if you’re just going to replace the head gasket if it doesn’t work then could a sealant do irreversible damage to where it couldn’t be fixed?

These are the sort of things you would use on an old beater that isn't worth much, to kick the can down the road a few months to a year. They work, just not in the long term and usually cause more issues later like clogged heater cores, radiators and thermostats. It'll work in a pinch to buy you a little bit of time but don't put this stuff in a vehicle you really care about or plan to keep without wanting to put an engine in it. Because this shit is hard to flush out. Case in point, I had an 89 dodge dynasty with a 3.3l v6. Car was worth maybe $350 and smoked white from the day I got it, threw some bars leak in there and drove it to work pretty much everyday, a short commute, and got about 6 months out of it before it started smoking and overheating again. Used that time to save up for another car. After that it went to the scrapyard as it wasn't worth saving. Situations like this sure, otherwise give these products a wide berth as you're just kicking the can down the road with more headaches, and expenses, at the end.

I currently have the head off of our 1989 Honda Civic DX 1.5 engine with 146,000 original miles. I spent some 8 hours removing remnants of original gasket material and other crud from the mating areas of the barrels and outer machined areas (upper-top surfaces of the block). The head is at a machinist shop to examine head, valve seats, install 16 new valve seals and shave the head flat. I bought a spray can of Permatex Copper Spray-A-Gasket high-temp sealant. Your message is to not use any of such products, but only the gasket with no sealing aid. Please comment.

I'm Goin to try this sealer tomorrow

White foam bubble appears on radiator cap opening on early morning starting engine , k sealer can seal up the gasket or not,any one can help reply, please??

I’m just trying to use this stuff to get more miles on it before putting a new transmission and engine in

If the head/heads are warped I wouldn’t expect any sealant to work. Warping is caused by the engine overheating. If you keep track of your temp gauge you can greatly reduce the possibility of overheating the engine. Gaskets which brake , tear or damaged can be patched with sealant. My situation was combustion gasses getting into the coolant which over pressurized the system causing coolant to blow thru the reservoir cap and rain coolant under the bottom of the car when pressure built up.

Anyone saying it's about mechanics making money, just do ur own work. Remove the head, take it to a machine shop. Learn to fix ur own car and u will save a lot of money

yeah the correct way to do it, do you offer financing for a 5k job? if you want cash up front or the persons just needs their car to make it 2 more years it could work. Hector Experience--My experience, they work for some blown head gaskets, even if the head has warped. Sodium Silicate is very nasty stuff and can definitely seize your engine if it is mixed with the engine oil so: NEVER use sealants if there is coolant in your oil, this means the head gasket blew all the way through coolant and oil passages. This is definitely a head gasket replacement issue. Now, if you only have combustion gases in your cooling system or white smoke out of your exhaust, this means the gasket issue is only present from the combustion chamber to the coolant passage. For this you can try a sealant. I have used it in 2 different engines with this problem, one has been running for almost 3 years now (head warped about 0.15mm) the other one was done a few months back and is working fine. Obviously both vehicles were pretty old and a head gasket change would have cost more than the value of the car itself. A head gasket change IS the permanent fix if your vehicle is worth it.

I've tried bars leak I spend over 150 bucks buying the carbon fiber bars leak then two smaller bottles it kept spitting them out through the reservoir till one day it just stopped and it lasted one year till the cheap water pump I installed failed , I didn't catch it in time even though I heard the bearing rattling (dumbass) I reinstalled my oem pump and it was too late I had reblown the head gasket that's where I'm at now trynna reseal it I'll let you know if it re- re sealed or if I had to dump the car

Replacing the head gasket or engine is not economically viable on really old cars especially where you suspect there are other lurking expensive issues. The only economically viable choices are throwing away the car for scrap or gambling $50 on a bottle and then scrapping it if it fails. Replacing the head gasket or the engine is a hard no.

At 220,000 miles on a car that isn't worth a head gasket repair, and I don't have the inclination. Also, in my case it's not loosing that much water and the oil isn't really milky, but the coolant bubbles, and it misfires after a while. Yes, I will try it, and I've seen opinions both ways, because sometimes it does work.

I put bars head gasket sealer in my 2000 Nissan and it lasted for a yr

I paid copper spray sealer and used. Found answer is FXXX shit. Replaced new gasket and then working fine.

I just it in new and resurfaced heads only not as a quick fix of its warped it won't work

Dang i wish i seen this video before i just got this put it in my vehicle and paid a shop to do it for me i just wasted over $200 some dollars😢

Think your right

No tomatoes 🍅 no peppers 🌶 no onions 🌰 lol 🤣

My experience, they work for some blown head gaskets, even if the head has warped. Sodium Silicate is very nasty stuff and can definitely seize your engine if it is mixed with the engine oil so: NEVER use sealants if there is coolant in your oil, this means the head gasket blew all the way through coolant and oil passages. This is definitely a head gasket replacement issue. Now, if you only have combustion gases in your cooling system or white smoke out of your exhaust, this means the gasket issue is only present from the combustion chamber to the coolant passage. For this you can try a sealant. I have used it in 2 different engines with this problem, one has been running for almost 3 years now (head warped about 0.15mm) the other one was done a few months back and is working fine. Obviously both vehicles were pretty old and a head gasket change would have cost more than the value of the car itself. A head gasket change IS the permanent fix if your vehicle is worth it.

I added Blue Devil to my coolant and it worked for about 4 days. After that, I added another sealer which promised money back if it didn't work and it absolutely did not work. To get my refund I require a written statement from the mechanic stating it didn't seal. The worse part is that I began to see fiberglass popping up out of my coolant once the coolant was low. This is a huge hazard for humans as you know so out of my experience I suggest never using any of that stuff since you're likely not sealing it for good and you're putting yourself in harms way by inhaling the fiberglass material.

Gasket sealers do work for temporary use. It will get you by for a year or so but eventually you have to replace the gasket

Some idiot that had my 99 cherokee XJ before me used some of that sealant, now it has been at the shop for a month with more and more things that are going wrong with it, I wish I had known about that before buying it, I haven't even finished paying for it, but the Mopar 4.0 in line 6V engine has a reputation on its own, as well as my mechanic guy, so I am hoping for one of those miracles, I mean, I haven't mistreated it, I haven't gone rock climbing or anything, plus it is a 4x2, I just use it to take my 3 dogs to the outskirts of the city so they can run around on the weekends, it is not even a daily driver

Why is my car still blowing out the overflow after having the head machined & gasket replaced, it literally still did it on the way home the day i picked it up from the mechanic and before anyone else replies asked am i sure it was done, Yes i saw the head off and because of the design can even see part of the new gasket.

I agree to a point/kind of disagree. Sodium silicate solutions to this issue depend on the location and severity of the problem. Its in no way comparable to a new gasket but it has its uses depending on your intentions and expectations. It can work for 2-3 years in some cases. Others just 2-3 weeks.

Cheaper to fit new engine then skimming gasket which may not sit right when put back together

If its already mixing coolant with oil it wont work. If its just smoking and putting excess pressures it sure will work.

What about using Indian glue on a new headgasket.

Thank you!! I have argued this with so many people that know somebody that has done this repair in a bottle! Its crazy! Blown gasket is blowing air out at a very high psi, how is some liquid supposed to get sucked in and stay there to fix a leak!? Like you said it wont!! The fear of a multi thousand dollar repair makes some try anything I guess. Can't blame them either, but if you find somthing that says it will solve a pricey repair for $40.00 bucks then it usually ends up causing even more damage. No such thing as a mechanic in a bottle! There is mechanic on a bottle, but not in one lol.

That looks like a ford ecoboost engine !. Those things are a ticking time bomb for head gasket failure .

It's not gonna seal everything because its not made to seal everything. There are those clever people called engineers that design it to work that way. It's not just a glue...

for my car work 2 years

I am sorry,I tend do disagree with you about head gasket sealers.I have used the product called GASKET MAGIC on my Mercedes Benz C200 kompressor which had a blown head gasket.This was done in 2018 and now it is 2023,have done 125000 km and have no over heating problems,no power loss,no misfire.This paricular product is used by rally teams and guys that go out 4x4 s in remote places and have proven this product works.Simply follow the instructions step step on the 500ml bottle and you good to go.

my car is a piece of crap saturn ion with 200k miles. Its practically a worthless car, it just sprung a head gasket leak. I just need it to run for a few months while I save up $$$ for a new car, I think I'm in a rare case where this stuff is actually worth using. I am totally fine with destroying the engine im taking this car to the junk yard in a few months lol. I think you're right that the stuff is bad, but if you're just trying to squeeze another month or two out of a car I'd say its not a bad thing.

they are not all the same. many of them have guarentees.

If your car is worth less then a head gasket repair. Try the sealer.

Changing the gasket isn’t even 100% sure to hold

Those sealers are only good for leaking water hoses.