Head Gasket Repair – This Works!

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I get so many emails each day and the majority of them involve head gasket leak problems. Now, before you just run out and use the sealer I am going to suggest to you below in my video I want you to MAKE DARN SURE YOU HAVE A HEAD GASKET LEAK FIRST

I would bet that over 50% of the people I talk to that have been told they have a blown head gasket actually do not. Their mechanic has not done a proper “cooling system pressure test” which should be FIRST, so they just assume the worst and blame it on the gasket.

Not a bad gig actually, a typical head gasket repair can cost $1000 minimum. So during the repair the mechanic will most likely stumble upon the original problem and repair it but it has cost you $1000 in the process.

I made this video which hopefully will help you determine if your problem is internal inside the engine or external like a water pump leak. After you watch the video below and you still think you have an headgasket leak, then try my suggested sealer I talk about. I will put my instructions below the video for you.

Ok, so hopefully you watched my video above and you are sure you have an internal coolant leak in the engine. If so, then try this yourself and see if it helps.

Buy a can of K&W Engine Block Sealer additive (Nanotechnology is the new version and works just as well)

1. You must drain out all coolant from the radiator first
2. Take a bucket and mix the sealer and tap water together
3. Add the contents to the radiator and top off with tap water only
4. Drive the vehicle for 500 miles, not at one time but soon
5. Drain out the sealer and go back with the coolant water mix

The repair, if it can find the torn area of the gasket should be permanent.

You will not have any protection from freezing or boil over during the 500 miles, so make sure you protect your engine.

I also do not remove the spark plugs or thermostat as the can suggests. That is all there is to it and we have been using it that way for many years with a 80% success rate or so.

Watch this video to learn about engine overheating and how you can determine the problems yourself.

Please share and like on Facebook, and leave your comments below.

Blessings,
Austin Davis

22 Responses to Head Gasket Repair – This Works!

  1. Austin Davis says:

    Unfortunately it will not, it is a cooling system sealer for coolant/antifreeze leaks. I am afraid you will have to replace the gasket, I have not found a “sealer” that will work in this situation. If you have a timing belt, I would replace it at the same time because oil is/has been leaking on it and will weaken the rubber. Thanks for your comment.

  2. Ray says:

    I have a leaking timing cover gasket. My mechanic recommended using Bars head gasket sealer, it worked for 6 months, but now I’m seeing a small leak from the same spot on the timing cover. Will K&W block sealer work on timing cover gaskets too?
    Great videos BTW. Your “simplified” explanations makes it easy for the layman to understand. Thanks!

  3. Brandy Marks says:

    I have a Volvo v40 that seemed to suddenly jump into the red zone, so had it towed to a Volvo dealer/repair shop. They said there was hydrocarbons in the coolant. So, thinking major repair at over $2K, had it towed home. It goes into the red zone very quickly even after a few blocks and I have to add water. Oil still looks good on dip stick. The thermostat (we did replace it and that of course wasn’t the problem) hose is opposite the one on your truck picture. The point being, the large hose on my cars right side coming off the radiator, I believe, is cool while the one on the thermostat side is hot. The leak on the car comes on the right side (facing the car front) while the place where water/coolant is added is on the left.
    One guy offered to repair what he thinks is a head gasket leak for $1500 to $2000 but that depends on the cost of the head gasket, which he quoted at $150 on up. Thus, I went online and looked up the auto parts and found it was only $45.

    Now, of course, I’m suspicious and wanting more info. I don’t trust any of these mechanics and wonder if you think it sounds like the H&W would work. In other words, what kind of a problem might it be. If a can of stop leak will work and save me using my credit card, I’m all for it.

  4. Austin Davis says:

    The newer version nano, says it works with coolant. I am an old school kinda guy and still use the older hard can version and drain out all coolant. I have gotten a lot of emails from visitors stating the newer version worked well with coolant, so I will let you decide which way to go. Keep us posted as to your results.

  5. Alan says:

    I’m going to go out and buy the Nanotechnology kind do you still need to drain and add water, or can you use the fluid that is in there while still adding a bucket of water k&w mix

  6. Austin Davis says:

    I do not let it dry out, just refill with 50/50 and keep your fingers and toes crossed. Thanks for your update.

  7. Rob Mitchell says:

    Hello again! So far so good. Just one more question. When you flush the sealer out of the cooling system, is it necessary to allow the cooling system to dry for a day as the k&w instructions specify or can you just immediately refill with 50/50 and keep driving? The sealer seems to have worked thanks again!

  8. Austin Davis says:

    I would get a second opinion from another mechanic, preferably at the BWM dealership. You might have air in the system that needs to be bled out? These cars are much different than a Chevy, so make sure your get a qualified BMW mechanic who knows these cars. You have not mentioned any of the common symptoms of a head gasket leak….but if you have ruled everything else out and want to try the sealer, it won’t hurt anything but treat it as a last resort option.

  9. richard charles says:

    i have an 2001 bmw 325i 4 door that my mechanic says has a head gasket leak , I change radiator , all hoses , thermostat , water pump, fan clutch , expansion vavle . no leaks noted , but builds up to much pressure and start to overheat .They have did a presssure ck that’s how i know , thank .

  10. Austin Davis says:

    Gasoline engines don’t like to idle for long periods of time, so try not to do that. Would be better to use a drop light under the hood, remove the radiator cap to allow for expansion and in the morning put another 100 miles on it, then drain and flush out the sealer if you feel it has repaired the leak.

  11. Austin Davis says:

    A 100 Watt drop light under the hood, and remove the radiator cap for room for expansion will probably be enough, but parking in a garage would be nice as well.

  12. Rob Mitchell says:

    Just ran to town and no white smoke. I also did not notice any water dripping from the exhaust which was also happening before the sealer was used. I think it may have worked. I’ll keep you posted. What about freeze protection for tonight. Can I just idle it every couple of hours or maybe just let it run all night? I guess I could run to the store and get a drop light and extention cord if necessary. Thanks for the input!

  13. Rob Mitchell says:

    No I didn’t get the system pressure tested. My temp gauge was broken when I got the truck and I suspect it had been overheated either before I got it or shortly after. I found and fixed an external coolant leak a few weeks ago. The coolant level continued to drop after fixing that and replacing a stuck thermostat. The truck hasn’t been overheating but there has been a lot of white smoke and coolant vanishing with no noticeable cause so I figured it must be the head gasket. I flushed the coolant and followed your instructions for the nanotech sealer. I did notice after driving about 40 miles, there was no more white smoke while idling. I’m hoping that and the fact that the coolant level appears to be holding means the sealer found its mark and worked. I put almost a hundred miles on it today. Temps will be cold tonight (29 or so) which is one reason I may just want to let it idle all night. I kept it from freezing last night by starting it every 2 hours during break at work but I am not working tonight and I wonder if idling for 6-8 hours will hurt anything? It has not overheated even with the high stress highway driving today so I don’t think I have to worry about boil out. What do you think?

  14. Austin Davis says:

    Did you get a cooling system pressure test first to make sure there are no external leaks, and an internal leak is present? If you got lots of white smoke and losing coolant, engine running hot, check engine light on or engine missing/running rough then chances are an internal leak is present.

    In my experience it can take up to 500 miles for the repair to take hold and become permanent but the majority of the time within a few miles of driving (less than 50) the repair has taken place. It can take a while for the coolant/water to burn out of the exhaust system. I would pack a lunch, take a few gallons of water and hit the highway for a good 1 hour non stop drive.

    Keep an eye on the temp gauge and do not let the engine overheat, pull over let cool down and top off with water if it does. Turn the heater on high for a few minutes too to let the mixture circulate through the system.

  15. Rob Mitchell says:

    Hello,

    Just a couple of questions about the sealer. Can I just idle the vehicle and get the same result or is driving the mileage a must? Also, How long does it normally take to get rid of the white smoke from the exhaust with the sealer? I have driven over 40 miles and still see loads of white smoke while idling. I did notice that the water level seems to be holding better though. Is there anything else that could cause white smoke besides a blown head gasket? Thanks!

  16. kenneth russell says:

    Thanks for all the info,you seem very knowledgeable about automotive issues!

  17. Austin Davis says:

    Awesome Jenny, glad to be of assistance, let me know if you need anything from me.

  18. Jenny says:

    Hi, the video was a great help, I must admit that I didn’t do it myself, but after watching the video I took my car to the shop and they started saying that a lot of other thing were wrong and they tried to charge me a lot, when I started quoting you they were surprised and realized I knew what I was talking about and got it repaired for a lot less than they were wanting to charge me, thanks!

  19. Austin Davis says:

    Keep us posted as to the outcome. Have a great week

  20. Jose Apostol says:

    I have the answer from your video. Thank you sir.

  21. Jose Apostol says:

    Thank you for the instruction. Should I remove the thermostat before I use the K&W block sealer?

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