How to fix a cracked radiator plastic jb water weld youtube. An allis chalmers c with a similar crack had been jb weld ed, it didnt leak. Put on work gloves then mix twopart, cold weld epoxy glue in a one to one ratio. Jb weld company of sulfur springs, tx 9038857696 told me that the city of dallas, texas used their product to repair a cracked caterpillar engine block.
How to fix a hairline crack in a cast iron radiator ehow. The mixture will set in 4 to 6 hours and be completely cured in 15 to 24 hours. J b weld on radiator crack musicsprecision84s blog. Its called radiator repair its a small tablet you drop in your radiator and let the car run, as it warms up you will notice the crack disappear. But it held for years until the rest of the car fell apart around it. I have tried to do the same thing in other cracks in radiators, but they were in corners and bends and other areas that didnt hold well. Radiatorweld is a plastic tank and radiator repair kit designed for permanent or temporary repairs on both metal and plastic radiators and plastic liquid storage containers from leaks caused by cracks of 4 or less and holes up to 14 diameter. I did the jb weld thing and it was fine for a few days but now it is leaking more, so i ordered a direct fit radiator, there are 2 problems, 1 is that the radiator i got in there was not exactly a direct fit, i may have had the radiator touching the metal radiator support before i put some rubber pieces in between the radiator and radiator support, the other problem with this car is that the. I had that same problem w my stock one except it had the top cover of the radiator had come off of its weld from the radiator core in a few spots.
Jb weld series extremeheat, epoxy adhesive, jar, 3. Instead of prying on the crack, use a grinder, file, drill bit, or sandpaper to open up the crack or hole. On paper, it sounds like jb weld is perfectly suited for patching a small leak in a radiator. How to seal a cracked block with jb weld it still runs. Looking for jb weld series extremeheat, epoxy adhesive, jar, 3. If you crack one that is otherwise good, this is worth trying since it cant be used as a trade in anyway. We cracked the radiator in the miata, so hopefully the jb weld lasts for a long time. One application of bars leak did the job for several years. Attempting to fix a cracked plastic radiator with jb weld. The powered concentrate allows for an economical repair as compared to liquid based alternatives that use similar technology. I believe its designed for the high temppressure that its exposed too.
Dr crack in radiator is leaking again after using jb weld on it two years ago. This kit is not recommended for plastic repairs or for use with polyethylene or polypropylene plastic parts. Realistically, i would have used the nirod followed by brazing as my first choice but point is the jb weld worked. Reapplied over and around the crack today around 1pm. My 1998 bmw radiator blew a hole in it when my car overheated after the serpentine belt slipped off the idler pulley, jb weld would not bond well to the type of plastic, however jb weld stick done in layers will, just sand the area first and clean it will alcohol, my repair held up for nearly a. Allow the epoxy to cure for 15 hours or more before reopening the radiator valves.
I have a new radiator but cannot get it installed for a few weeks and my jeep is losing more af that i would like to see. How to fix a cracked radiator plastic jb water weld duration. Jbwelding upper radiator seam peachparts mercedesbenz. Had a hairline crack in a 14 month old denso radiator in my lexus lx470landcruiser.
Jb weld, no matter how good it is, will not withstand the coolant, the heat and the pressure inside your radiator. I keep tubes of jb kwikweld in my road kit just in case something weird happens like a coolant neck snaps off a radiator or a thermostat housing or an alternator mount breaks. Though it had plastic end tanks leak was on the end tank and it was a beater car that i didnt care about. Jb weld permoseal is a specially formulated nontoxic compound ground to a very fine particle size to quickly mix and flow into all areas of the cooling system to find and seal leaks. I had an old chevy truck with a cracked block and head that would weep coolant. Yes, jb weld can repair a cracked cylinder head, but. I went to the parts store and they sell radiator repair epoxy. But i never used jb weld to repair a cracked cylinder head before. Radiator cracked, fixed with jb weld, leaking after 2 years.
Replace the radiator plug on the bottom of the radiator and refill the fluid to the appropriate level. Very similar to jb weld in final consistancy, but its a log, with one chemical wrapped in a second. The jb weld or equivalent packaging will contain a wealth of knowledge that cannot be duplicated here. For something that will hold you over, get the jb weld or quicksteel that will set underwater.
So, i removed the waterweld by scraping it off with a screwdriver and applied jb plasticweld. Repairing block and cylinder head cracks on the model t. It isnt recommended by plumbers, and it doesnt work for plastic pipes, but you can temporarily stop a water leak in a metal pipe with epoxy putty. Even though it was above the water line it was recommended by others to use jb weld. Jb weld is one of many national brands you know and trust carried by o reilly auto parts. If it is hot water, you can always try boiler seal. Choose an item or category to find the specific products you need. I was thinking of draining down the radiator a little, sanding the crack or split, cleaning the applying some jb weld.
Just knead it into a long cylinder, then place it into the crack. I have drug more than one bmw in off the interstate with cracked plastic cooling system parts that have been successfully repaired with jb weld radiator repair material and sent on home. If its just a hairline crack that weeps coolant an even easier fix would be radiator stop leak, barsleak to be exact. Mix jb weld extremeheat is a singlecomponent putty, open the container and mix it up well until it is a uniform color and consistency.
No removal of tank or radiator is required to stop leaks. I first applied jb waterweld, and that didnt work because it didnt bond to the plastic very well. Jb weld 8297 highheat 550 degree epoxy putty stick 2 oz. Mix equal portions of jb weld and then apply and press together. Repairing block and cylinder head cracks on the model t ford a friend has had this lovely 1910 touring since about 1960. No jb weld product bonds polyethylene or polypropylene plastics well.
Jb weld is a type of epoxy that seals and hardens to close cracks and holes. I have a small crack in the plastic part of a radiator. Other than replacing the radiator, which is the best option, i have used the jb weld stick. Get deals on automotive parts, truck parts and more. Jb weld co radiatorweld plastic tankradiator repair kit. My car has been leaking coolant like a sieve whenever i drive it as it s just about impossible to drive more than 30 mins at a time i live on maui it hasn t caused any problems yet. I first tried the jb plastic product, as it seemed to be the best product. I had a small crack in the front of the plastic radiator, near the top, maybe an inch and. At least it gives you a fighting chance of making it home. I have a crack in the side of my jon boat where the corner of the seat punch a hole.
The package doesnt list operating temperatures though. Stop leaks, no removal required, great for radiators, wash. The flux paste will ensure a good bond of the solder. For other plastics, clean both surfaces and then rough them up with sandpaper if theyre smooth. Jb weld company offers the most durable cold weld products available. I jb welded a crack in the plastic top the radiator of my hyundai many years ago.
See the attached links for better wayspermanent fix of aluminum core tube leak or cracked. Cracks and holes smaller than 18 need to be opened up to a minimum of 18. Apply your mixed jb weld all over the leak area liberally with the wooden tool. How do you use jb weld to repair a 1inch crack in your. Radiatorweld is a plastic tank and radiator repair kit designed for. How to do a complete brake flush and bleed duration. You cut off what you need and knead it together into a useable paste. They also said that people have been using jb weld to fix old castiron radiators. Had a hairline crack in a 14 month old denso radiator in my lexus lx470 landcruiser. To use jb weld on plastic, first determine the type of plastic. Im not much of a steamhead, others here may have better suggestions when it comes to steam, but do an air test first.
How to repair a car radiator leak in the plastic area. That being said, i have repaired a radiator with jb weld in the past. Im doing it again tomorrow because the jb weld eventually just gave out. Fixing my sons plastic radiator with high temp jb weld. Would jb plasticweld work well for radiator repair. How can you repair a slight crack in your radiator answers. Getting it to hold well is all about the prep work. Old house journal recommends that the epoxy be no more than 2inch in thickness. The couples contractor drained the water out of the radiator and planned to use a marine epoxy followed by jb weld to stop the drip. Anybody ever fixed a cracked engine block with jb weld. Park the vehicle on a flat surface and engage the parking brake. I tried jb weld and other similar putty but they did not work on plastic. If a engine block develops a crack, jb weld can be used to seal up the crack and prevent the crack from sucking in air or leaking coolant.
The leak here wasnt serious, producing a few drops of water every halfminute or so. To create an even better seal, attach the radiator overflow line over to the intake manifold and remove the distributor cap. The best bet to get home would be a radiator leak plug that works with the heat from the inside like a rad stop leak. If i had some kind of plastic water tank that had a hole in it i would buy this again. Wipe away all of the paint, rust and dust off of the crack and the surrounding surface. Field repairs for a cast iron radiator old house web. I tried jbweld and other brand of putty but they do not work on plastic surface. How to repair a radiator with jb weld it still runs. The jb weld is great, original repair was still holding.
So instead of spending a lot more money replacing the radiator this way you can patchett. Shop for jb weld radiator weld repair kit with confidence at autozone. Radiator cracked, fixed with jb weld, leaking after 2. Replace the radiator cap and remove the engine cover that you placed to keep. I would clean the hair line crack well, extra fine sandpaper, use flux paste, plumbers solder and a propane torch to seal it, then apply a dab of jb. Try to fix a cracked plastic radiator with jb weld. How to fix a water leak in a pipe with jb weld or plumber.