Can You Repair A Pitted And Gouged Cylinder Wall With JB Weld? Let's Find Out
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- เผยแพร่เมื่อ 15 ต.ค. 2023
- For decades, JB weld has been the universal last resort backyard redneck repair for all sorts of mechanical disasters. Usually it's a crack or stripped hole getting the epoxy treatment, but how would it work inside an engine, in an area that is worked hard with heat, pressure, oil and fuel...the engines cylinder walls.
We took a perfectly good running four stroke engine, and then deliberately damaged a cylinder wall to simulate the most common types of damage. Pitting, deep rust etching and compression killing vertical gouges. Here's what happened after we attempted to fix all this with a healthy glop of JB and some sandpaper.
TO KILL A PREDATOR , THE SCIENCE BEHIND EPOXY CYLINDER REPAIRS WITH JB WELD : • TO KILL A PREDATOR , T...
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I am a mechanical engineer. I am not into second rate methods. But I have used JB weld on many small engine cylinders with great success. It is methacrylate based chemistry that is made to bond to metals. I have done mostly aluminum bore Briggs and Tecumseh engines, that are not worth boring out. But it works great. You can also fill in the top area of the cylinder where the piston rings wear the cylinder the most. The engines I have repaired this way have lasted for years, and I have taken the head off to check on the epoxy, and it was just fine. My uncle used to do this on boat engines. One good application for JB weld, was leaking power steering boxes. The salt would eat the steering shaft right where the seals would ride. I would wire wheel out the rust, clean it with lacquer thinner, and apply the epoxy. File the excess of and polish with emery paper, and install new seals. The steering boxes lasted for years and no leak. JB weld is NOT good for tension applications, but for compression and wear applications, it is really good. You just need to use it within it's limits. Stripped threads is a shear application, and no it won't work for that either. But fixing engine cylinders is a good use. Hope this helps someone who might doubt this seemingly crazy UT video. Not crazy at all. Better living through chemistry, is the category of this one. --Doozer
Epoxy with moxie.
I have used JB weld for installing a heli coil. The hole was drilled incorrectly on a angle. I redrilled out the old heli coil. Re-tapped the hole. I used JB weld to take up the space when I installed the new heli coil.
I used petroleum jelly on the bolt threads so the excess JB weld didn’t stick to the bolt holding the threads in place.
Your comment was worth reading.... I learned something new that JB weld can actually fix cood......I know it works good for porting 2 stroke engines. If you need to do something like change the transfer port angle or plug intake pory to go with a case reed valve.........I'm curious if the high heat 🔥 JB Weld could survive directly inside the cylinder head on the inside roof to make a diy high compression E85 cylinder head on a small 2 stroke engine.
A friend of mine jb welded a stripped spark plug into an aluminum f150 head. It now has 50k miles on it
As long as the chemicals its exposed to don't soften it or the heat burn it up... why not? The rings can't wear it out as the aluminum around it will support, so it isn't touched by the ring (after initial wear)
Personally witnessed a JB weld repair on a ford 400M #4 cylinder scored, zero compression. It got a good used conn rod and piston that got new rings. He disassembled the affected area, applied JB weld.honed the cylinder and put it all back together with a new head gasket. The F250 ran fine almost three years. The durability experiment ended when the truck slid off the road, glanced off a tree and rolled over in the ditch. I will let everybody decide for themselves if it was successful. But, i say an added two or three years on a high mile engine for less than $300 is pretty damn cost effective
.
When I worked for Toyota, there was a huge head gasket recall on the 3.0 V6. The coolant running into the cylinder would also erode the cast iron block surface. JB weld was the factory recommended repair. We never had a comeback.
Thanks I got one of those engines in the 4Runner in the field . Blown gasket and scuffed cylinder wall.
@@orionbirch2705 never repaired a cylinder wall with it..
Is it funny that I know it's the 3VZE offhand? I have a 93' T100 that I just did a timing belt and waterpump + thermostat on. What does eventually get the head gaskets though (recall fulfilled or not) is apparently the No. 6 Cylinder region of the driver's side gasket, because the exhaust uses a crossover pipe that goes behind the motor. Rather than meeting up under the vehicle like some modern systems, it instead mates with the back of the left hand exhaust manifold and dumps all the exhaust on Cylinder 6 before exiting down and out the pipes.
Haven't had a problem yet though, and the coolant looked good when I drained it!
Shorty headers fix this problem. I've done a few. Good preventative maintenance
@LGTheOneFreeMan Not sure of the forensic diagnosis but yes it was always #6. The redesigned head gaskets didn't fail. The contention then was "gasket itch" different expansion and contraction between the block and cylinder head. If your spark plug is suddenly green...there you go.
Years ago when Engine Masters competition was doing something other than LS engines, the Pontiac guys who do most of my machine work (Butler Performance) took a bunch of new and not so great used parts, which included a block that had some pitted cylinders, and made 659hp @ 6200 and 624TQ @4600 on pump gas with a flat tappet cam. It didn't even smoke.
You'd be surprised at what an engine will put up with, and what it won't..
Haha yes!
Sloppy mechanics on here reusing head gaskets and then making like 700hp on a boosted LS,hell yeah 👍
There's a right way to do wrong things sometimes 😂😂
I can confirm that it's possible for engines with pretty severe cylinder damage to run perfectly fine. I recently "rebuilt" an engine with pretty severe rust pitting and deep horizontal grooves from rings seizing thinking there's no way it could run properly without burning huge amounts of oil, but after hours of cleaning the cylinders with a wire brush, somehow it runs perfectly with better compression than the service manual spec for a new engine and without any significant oil consumption. I was disappointed to see that the block was in such bad shape when I got it apart, but seeing it run perfectly fine with decently severe damage to all 4 cylinders is very cool too. We'll see how much longer those 27 year old 354K mile rings will last on the rough cylinders, but at this rate, I'm not expecting it to die any time soon.
Justin?
I've personally put a 350 together with pitted cylinders after extensive honing, pre-gapped rings, a rusty, pitted crank with a shoelace 1000 grit polish, FREE pistons and rods from the trash bin at a shop, and the original cam bearings. Didn't burn a drop of oil and the thing would go to 7500 rpms and not even care.
Did this when I was a kid, go-kart, blew the piston. The rod shot through the block. My dad JB Welded the hole up. We re-assembled and the engine worked. No idea if it had the same compression or how long it would last. It worked well enough for zipping around our yard.
Killed several Tecumsah and Briggs motors this way when I was a kid
@BluesSky Me too, I swapped back & forth between Briggs, and tecumseh 5hp, modifications to both.. to me tecumseh had more juice than Briggs, Briggs was more reliable and way easier to start..... always thought maybe tecumseh had more compression, who knows.
@@josephf593 yeah, we ported them, and made adjustable timing advance/ retard by rigging up lawn mower throttles, set a couple on fire too…melted into the street. The funniest thing Ive ever seen was the idiot neighbor after trying to get his curbside score mini bike to start for days, he jumped on without putting the seat on , sat directly on the spark plug…screamed as he gassed it down the driveway. Simpler times, for sure.
The coldwarmotors youtube channel once fixed up a seized solid straight eight motor, and in the process of freeing the motor they blew a hole in a cylinder wall, so they did the same thing. Cleaned really well, JB weld, and hone. damn thing held up great, at least for a few backyard dragraces. Excellent channel, would recommend.
What happened after those races, did the jb weld come off?
In derby cars and some circle track cars we used JB Weld to seal the motor up instead of gaskets we never had a failure. It also worked great for plugging holes in the rad.
Just don't use it if you ever want to take a motor apart unless you dont mind using a air chisel to get it apart.
lol jb weld instead of a head gasket, I wander how much pressure it would take to fail , I guess the weakest point is between the cylinders
Tony, please do us a favor so you can keep providing us with entertaining content! WEAR A DAMN FULL FACE SHIELD WHEN USING A DIE GRINDER!! They can be dangerous as hell with the chips OR breakage! Just lookin’ out for you buddy. This comes from way too many hours with one of these tools in my hand, real painful having a chip dug out of your eyeball. Side note Devcon is the most badass repair epoxy made. Put a 4 x 6 hole back in the side of a Cat 3406 block left by an exiting con rod. Found most of the blown out pieces and “glued ‘em back in with Devcon” - motor ran another 600k before it got sold, stayed dry as a popcorn fart, never leaked a bit of oil!
25 years ago I had a two stroke dirt bike that broke the top lip of the piston off.
Just wanting to get another weekend or two out of it I used Moroso epoxy to build up the missing chunk of piston. I ran that thing hard for the rest of the year, probably another 10 or so hard days of trail and pit riding.
The bike sat over the winter as it always did.
In the spring, for kicks I cranked it over and felt something a little off. I pulled the head and found that the epoxy patch had curled and half of it had falling off and was getting pressed into the head.
I had already gotten a new jug and piston for it, so it was no big deal, but I felt that time had done more to damage it than the hard riding right after it cured. Fuel or oil may also have just had time to soak into the epoxy too but it certainly did what I needed it to do.
As a kid, my father's buddy had a small farm, and he used an old Allis Chalmers tractor from the 40's as his cultivating tractor. One winter it froze, (they didn't run antifreeze in fear of dumping it on the field if something happened). Two cylinders had long cracks, one had a chunk of cast iron pushed out. Two freeze plugs had also popped, and one took a chunk of block with it.
His fix was to braze it all back together with brass brazing rod. He brazed the outside first, then brazed the cylinder walls up following by filing and honing them by hand.
It ran like that for the next 35 years or so and was still running when they sold it after he passed away. I later found out that it had froze and broken like that a half dozen times over the years, and every time he just brazed it up and kept using it. He also never bought new gaskets, he'd either cut them out himself or just spray and reseal the old gaskets.
I remember hims saying one time not to glue any of the gaskets so that they can be reused the next time it comes apart. He'd dust them with either powdered graphite or coat them with grease. I know for a fact that the old AC is still running, it resides not more than a mile from where I live now and gets used every summer.
Keep in mind that its an old, low compression motor and not some 11:1 performance motor.
for an Iron block I'd love to see what a torch and brazing rod can do for a cylinder that is otherwise deemed unrepairable.
I was thinking the exact same thing. Hey Uncle T, how about giving it a go?
The channel yer looking for is Garage 54.😀👍
@@outlawbillionairez9780 but they dont speak english
@@ogonbio8145 they're dubbed in English
“Today on garage 54 we cast 1979 Lada engine block out of JB Weld.”
For epoxy patch in head or block,drill tiny, shallow holes,at angles to each other. Use toothpick to fill them in, before the final repair glob.
This is a man that knows how skew nailing timber works. Which puts him in the top 20% of carpenters, even if he's never even lifted a hammer.
Very cool video guys! A real test that showed true results. I always remember driving by the owners house of JB Weld in Texas. Used the product many times.
Just yesterday I was wondering if such a thing would work on my gouged cylinder wall and today you post this video. Amazing. Guess I better head on over to the parts store to get me some JB Weld. I gave this video a thumbs up to say thanks.
I would use a better product than JB Weld though. They said there are better types but didn't mention any....I might try this if my 2 stroke ever breaks a bearing or circlip and scores the cyl walk just to see how long it'll last 🆚 buying a new cyl.
Well im guessing those classic car flippers are going to start doing this.
This is a perfect example of my favorite saying to people. Do you want it fixed or do you want it to work? They never really understand the difference
Tony I never tried to do a cylinder wall but did JB Weld a sparkplug into a VW head and drove it for months until I could afford a new set of heads. Worked for me.
UT: Do you think you could use JB WELD on an EV car battery?😆 Too soon?
A compression test would have been great.
yeah, a bit of a miss...
done that when I got a riding mower that was seized up, pulled the head filled with transmission fluid, let sit for a few days and then cleaned it out noticed a rust pit, filled it with JB weld and sanded it with 120 grit drywall sandpaper making a sort of cross hatch then put the head back on using the old gasket,ran great and it didn't smoke lasted till the deck rusted away 5-6 years
Very nice test. Remarkable!
The standard JB Weld indeed the one to go with. Not the quick dry.
My guess of not hardening the first badge of weld was due wrong measuring of the mass. And not mixing it that well. Bit yeah it could be something else too.
. .
He didn't mix the quick set well at all
Scott over at cold war motors did this. He had a giant gouge in the cylinder wall of his 36 Chevy and fixed it with the JB weld. But then he chickened out and sleeved the cylinder.
Yeah I always sorta wish he gave that a chance before resleeving it.
Don't forget the Packard during the Straight 8 Showdown. AFAIK that car still starts up and runs with no problems
@@Black-Villain I don't remember that. I did see the Straight 8 showdown from a few years ago.
@@tarstarkusz IIRC they used a hydraulic pump to force the piston to move, and in the process it blew a hole in the side of the cylinder wall. Been a couple of years since I watched it though, but that's how I remember it
@@Black-Villain Yeah, I remember the piston. They ordered a new one from America and it never showed up but then found one locally.
The hydraulic pump didn't work. They used an air chisel to chew up the piston to get it out.
Thanks.
While I don't like to see an engine intentionally ruined, DESTRUCTIVE TESTING is a staple of engineering!
It saves lives by stretching bolts to the breaking point for example. Whether or not this can save Dr. Art remains to be determined....
JB Weld also works on the head of a 1950's Elgin 7.5 hp outboard. One of the corners of the head around a bolt hole got knocked off. We built up some JB Weld and drilled out a new hole. The thing held up just fine.
I have one of those engines I fixed it up and got it running in a barrel but I haven’t put it on a boat yet
Grandpa had one and I remember going to a Sears store or something to get a rubber water pump impeller? Maybe I am dreaming.
@@mikekokomomike Yes, they were sold at Sears and I remember having to replace the impeller more than once.
@@mikew6765 thanks. I guess I haven't lost my mind just yet. I think it was a green 5 horsepower motor. He graduated to a 9 horsepower Johnson.
@@mikekokomomike My Dad's was a green 7.5. It had a retractable pull start and a glass bowl fuel filter. I remember being really surprised when we pulled the head to fix it. The piston tops were domed kinda like a hemi. It was pretty cool.
I used JB Weld to repair a hole that had worn into an aluminum air conditioner hose fitting that was rubbing against a steel brake line, under the hood of my Mazda B2000. I then recharged the freon that had all leaked out. When I sold that truck three years later, the A/C was still blowing cold.
I did the same thing to an Mazda b2000 too and i drove it over a 100,00 miles and was still working when I sold the truck .
That very enthusiastic "Dont try this at home with a smile"
Had me cracking up people probably running to their cars right now
Commando-Uncle Tony must have scared Uncle Kathy when she first saw what's in there ;-)
JB weld can be picked up with a magnet. This is something I have given a lot of thought but never tried. Excellent!
I did this same thing to my 1969 Charger Bendix 4 piston calipers. I used a drumel 1 inch cut off wheel to trench the pitting in the cylinders, then honed the cylinders. I soaked some cured JB Weld in brake fluid for 6 months with no effect on the JB Weld. I have not put any brake pressure to the (patch) yet. I'll let you know how this works.
cant you buy stainless sleeved calipers? I did that on my vett
I know you you guys are just having fun with this. I see a big issue being the expansion coefficient with heat difference between the two materials off to watch the video now!
'88 Yamaha YZ80 2-stroke blew up at the beginning of a week long camp n ride. A deep gouge down each side of the cylinder where the wrist pin came apart. Filled it with JB Weld and let it cure overnight for a temporary fix. Worked and ran so well that we ran it like that for 2yrs.
I have restored quite a few pitted unobtanium brake and clutch cylinders/pistons with this stuff.
JB weld.....very good stuff. I jb weled a 440 block ,a crack on the outside on the side. No leaks
On ColdWarmotors Scott used some JB weld on a cylinder in a Buick straight 8 engine, and it ran fine.
What an interesting thing to visit. Awesome job guys
International 366 blew a head gasket we were up in the mountains, the block was worn & pitted under the compression seals, Boss says well let's test the JBWELD, cleaned,filled, smothed surface, after repair ran great for years...
A really great way to clean motor oil off of metal parts is to gently heat the surfaces to gently cook off any oil, gas, diesel, residue.
Or just send wife to the store and run them through the dishwasher. Pro tip: you can leave the dishes in it.
.....a friend got caught doing this.....his wife demanded a new dishwasher....he took the old one into his garage shop and used it for years as his parts washer.....when he built his new shop, he went to a restaurant supply place and bought a big stainless steel restaurant dishwasher that had a coil to heat its own water ......and THAT one worked REALLY WELL!!! as a parts washer when the heat was turned up to HIGH!!! using powdered TIDE with borax was the key to degreasing....that 'orange cleaner' stuff works well too @@graham2631
@@graham2631 I have a 1970's Kitchenaid dishwasher I got for free that I use to clean car parts. It also has a 180 degree sanitizing rinse which helps remove just about everything.
@@graham2631 And she'll even thank you for running the last load through the dishwasher when she returns! It's a win-win!
I am listening to this as i use a 2 part aviation epoxy on an airplane heat exchange plenum. Follow it up with a soapy hand to smooth it out then stick it in the oven . Good video. We used to use it in 2 strokw race bikes in crank cases.
Its 'bout time we see some one holer homda gx200 clone engine work! These things are the sbc of go-cart and minibike world! I have 2 street/drag minibikes, each with identical HF predator 212s, modified in identical ways. Both bikes are the same type frames (doodlebug) and each have wheelie bars. One uses a comet style torq-a-verter cvt style clutch, the other is a centrifugal hilliard set up for 4000rpm stall/enguage. Both engines make 19hp running on gas. The cvt leaves wayyy harder and stays on one wheel up to the 330ft but eventually tops out max speed just before the 660ft 1/8th mile at 69mph. The centrifugal bike still leaves reasonably hard but its a total different experience...just past the 330ft is where it really starts to come on. No matter how much i play with gearing there is still more left in it for tuning. It goes around 78-79mph in the 1/8th. Both bikes are close in et but the centrifugal is usually a tad quicker overall, around 8.70-8.90 et in the 1/8. Both feel crazy fast on such a small frame and that close to the ground!
Science!! Gotta live it baby!!
JB Weld is the sh*t! The top neck of the radiator had cracked so I wanted to see how good this stuff was. Applied 1 layer inside & outside, waited 24hrs, another layer on top of that, waited 2days (because of extreme high pressure), then put it in test mode. Never failed.
cooling systems seem to average 13psi. not too extreme
J B weld is some good stuff. I patched a hole on a Honda 750 motor cycle block where the Cain knocked a hole in it stuck a piece of card board on the inside and just slowly built it up.
Nicely done, gentlemen! :)
That gives a whole new meaning for a flipper
I love the beast mode carbide Burr with no safety glasses
My experience with epoxy is the longer set time ones are stronger than the quick set. The extra time seems to allow the epoxy to flow into all the metals imperfections to make a superior bond.
Yes it improves flow, which helps. It seems like they are also chemically different too. I've tried many types of epoxies as well and the standard old school JB Weld is by far the best / strongest from experience. I actually appreciate that you can fashion it or add more to it for the first 30-45 minutes.
Absolutely,. I believe that's because there's time for the internal stresses from the slower reaction to more evenly distribute themselves through deformation, so you don't get higher concentrations of locked in stress.
I've got cylinder head books and go kart books that swear by this stuff. Myself I've only used it for thread repairs and a bit of carby mods. If I ever put a hole into a head whilst porting it, I'll try the stuff.
Saw the title and thought this is gonna be a good 1👍👍
Here’s a JB weld story I do not expect anyone to believe.
A relatively competitive alcohol funny car team torched the deck of a block during a qualifying run.
They removed the damage sleeves, cleaned the torched aluminum in the block, installed a new sleeve and filed the torched deck void with JB weld cleaned it all up when it set up and ran it to qualify and two more passes when the cylinder leak down showed to be an issue.
It bought them a round or two.
JB weld is used in industry all the time to patch hard to replace parts. I've used it to repair a cylinder head surface that the antifreeze corroded. The engine was on the road for a couple of years afterwards but I've lost track of the guy who owned it. It would be interesting to know if he still drives it.
I like it , good video. I done. What you guys just done for an experiment. Yes it will work for an hour
Yes you can. Buddy of mine did it with a shifter cart and used to race it. They had to reapply every race. But it worked
Thanks for showing the unscrupulous flippers a way to give their victims the twig and berries 😏
HOWdy U-T-G,
Thanks
COOP
...
11:38 Dude... don't touch the surface you just degreased with your fingers, lol! We all gotta learn to resist that temptation! 😂
yes it does work, years ago I had a buick v 6 that the piston pin came loose, it made 2 perfect grooves in the cylinder wall, so 10 coats of jb weld next day sandpaper and then the hone, new piston and rings, it ran great, another 20,000 miles that I know of, no oil burning, just need to prep it right, I used a small sandblaster, lots of cleaner and some heat for the first coat
The closest I've done is rebuild the top of a piston on an old 1940's Wisconsin 22hp. Worked great!
Just like The National Enquirer: Enquiring Minds Want To Know!!!
your the best uncle tony...lol
This is INSANE!
I wonder if you carved out the pits into lines if the jb weld would hold up better in the cylinder. The one time I've used JB Weld on an engine was pretty mild. It was on a 1994 D16Z6 Honda Civic engine. The previous owner pinched the hell out of the multilayer steel head gasket and it gouged cuts on the surface of the block where the headgasket seals one of the large coolant passages on the firewall side of the engine. I cleaned it up really well and used regular jb weld to fill the cuts and gouge. I went back after a couple of days and used a sanding sponge to sand it flat. It came out flat and Smooooth. Did a last clean and then put everything together with a low mileage head and new head gasket. Never had a problem with that repair. I talked to a local shop owner I respected after I did that to tell him what I did and to get his input on it. Come to find out he used to do this same thing with Ford Mustangs since the 60s to save them from the scrappers. He used to repair pitting on the iron block surface, block sand it, clean it, and then put everything back together with new parts. He even would then resell them and give good support to those families buying them just in case there was an issue. He said he still knew several people with Mustangs he had fixed that way that were still driving them to this day. He never had one come back for a defect in that repair it was to get maintenance done because they bought a good car from him :)
Always wanted to learn some tips and tricks about porting a cylinder
You port a 2 stroke cylinder but not a 4 stroke cylinder....On a 4 stroke, you port the cylinder heads.
@@michaelbrinks8089 Naw.....port everything. Even the 3 cycles.
Yes it works. There is an 87 s-10 2dr 2wd 2.8 liter running around with a gouge in the cyl wall of one of the rear cylinders i belive it was. I completely rebuilt the engine in 05 and fixed the pit with jb weld also it has a step above stock camshaft in it also. Its still running around up here in ohio as i seen it about 5 years ago.
I have dune this with 2 stroke snowmobiles loads of times not on the good ones but when it was garbage or just weld I went jb weld with no problems
My dad and I fixed a final drive sprocket on a Case terraloader with JB weld and it lasted for years.
A product I have utilized even on cracked blocks is the grey colored industrial marinetex. That stuff is awesome. Do not use the normal boat repair white marinetex.
I had an Oldsmobile 260 that dropped a piston skirt. The wrist pin racked around inside the cylinder for a good 20 miles. I didn't want to invest the money in the car so I bought 1 cylinder worth of piston, rod, ring and bearing, oil pan gasket and head gasket. I filled the 4 gouges in the block with JB weld, honed it smooth and assembled it. The engine lasted probably 1000 miles before it started using oil. I scrapped the car but I still wish I had torn it down to see what failed.
Lol 😂 😂 talking to 4 year old ! Great video guys !!
Several years ago I used JB Weld on a scared chainsaw cylinder worked just fine.
Next you can try making custom radiator hoses with old pantyhose and a can of Flex Seal .
It OUGHT to work , at least for a minute or 5 ..
LOL!! I was waiting for the Russian to English translation!!! 😂
And for you armature gunsmiths, JB weld is a great bedding material
Thanks! This will be perfect for my old Yamaha j38 golf cart. major oil burn and blow-by, but a pricey rebuild wouldn’t make sense.
In the early 80's my grandfather talked my father in to helping him repair a cracked cylinder in a 1970's Chevy Vega with JB Weld. At the time I was told that JB Weld was not common, and my grandfather had access to it as he was a mine equiment repairman. My father and grandfather attempted the repair 3 different times, each time letting the JB Weld cure longer in the hopes that it would hold. Well during the 3rd attempt my father told my grandfather that if it did not hold, he was not pulling the engine out of the vega again, and that he needed to take it to a machine shop and have it sleeved. Well on the third time it ran for about 15 mins before the "fix" let go. Now this was in the 80s, so I'm sure the product has changed over the years, maybe it's strong enough now, who knows.
JB weld’s composition is a bit different than 12-16 years ago. It deteriorates very easily and faster.
I use jb weld on threaded pipe joints to seal of any any fuel oil. It comes back apart if you flase it with a torc.
The Electrocuted Viking is talkin' debate smack Tony.
I saw the title and thought for sure it was a notification from Garage54!
There is an old story about a mechanic at John Wayne Airport (Orange County CA) who showed us all that JB-Weld can hold an aircraft spark plug in place even with stripped threads. Apparently the airplane was able to get off the ground before the spark plug shot out.
Uncle Tony back in the 90's i had a car with the motor sideways and it blew out a chunk about the size of your fist i washed it and used lacquer thinner to clean it off hit it with a grinder and used a little mirror to tack weld it the best i could then J B welded it never did leak i gave it to my niece later on and she had it for a while no problems here lately i ran over something in another car and it punched two holes in my oil pan car ran out of oil and died is when i found out what happened i walked got some oil and drove it five miles home jacked it up cleaned it off some 36 to scratch it up and J B welded it also, rod was knocking but i drove it for a while till i junked it later on. I'm a retired body man so have done it all.
We have a lot of Smarty-pants on this channel... anyone wanna post the projected horsepower of the electric race kart? 1,500 amps...
I've wanted to try a "speedy sleeve." The kind intended for fixing gouged cranks ect to repair seal contact surface.
I've used one on a big block, and always wondered if you could do one like that. How far would you have to go on a cylinder to get a sleeve in there?
I work as a marine mechanic and use those all the time on Northern Light gensets...the 844's have a habit of blowing the rear main oil seal and leaking everywhere...If its a beyond a certain number of hours I just use a speedi sleeve and new seal as part of the service. It'll just leak again otherwise.
JB weld, duct tape and WD 40 can save the planet.
Coldwarmotors did it.
The new sleeve worked better, lol.
Oh great, how many used cars are going to be up for sale with JB weld patched cylinders?
how many already are?
Should have done a compression test before and after, i can barely watch this anyways tho so whatever! It's like watching knee or hip replacement surgery
THANK-YOU, engines are GOOD, again we Thank-you. Rants are a Sometimes cookie . (Biscuit?)
Y'know man, I've always appreciated your support, and I respect your criticism, but you have to understand something.
We...you, me...this channel...we have a reach. We're beyond fortunate to have a voice on this platform, and people do pay attention to what we say.
We all have a love of cars and engines and all things mechanical, but we also exist in a world that is a whole lot bigger and more complicated than that.
Talking about things that are off-topic by your standards, is a way to help protect the things we love. The more people we can wake up, the more likely that our way of life can continue.
There's an army of very rich, very powerful and very treacherous people out there that want nothing more than to make our type disappear completely.
This is a war, man...a cultural and informational war. It's my RESPONSIBILITY to toss a grenade when I see the opportunity to do so.
I hope you get what I'm saying.
@@UncleTonysGarage Fair enough mate , i hear that. I can be abit Me, its jus i luv Motors and i wanna kno the tips 'n' tricks ya show us . Luv ya work , cheers
Craigslist engine rebuild.
I’ve mig welded gouged motorcycle cylinders on a turbo bike. It worked ok .
Chinese peasant engine factory workers everywhere are "up in arms" watching you grind their crown jewel LMAO
I bet it ran better because the ring friction would maybe be lower, he probably honed it better than the factory. 😎 I'm curious if that JB that came loose had anything to do with the valve failing. 🤠
Nikasil in a tube? I like your thinking... although I doubt its heat transfer rate is beneficial haha
Devcon makes industrial versions of fillers like jb weld. Costs much more but when properly used it’s like actual metal. Starts out like bondo or jb weld. Also I think the epoxy sticks for fixing gas tanks is better than JB.
Re rung a old locked up roro tiller lasr year.
Big gouge in the cyl in on spot.
I honed it , new piston and rings.
Runs like new.
just used high heat jb weld to build up a bent timing case cover. i reapplied after first cure for a true flat surface within 1/32" before cure and sanding. unsure how it going to hold up over time as its the surface my water pump will meet on an olds 307. im going to give 15 hours cure on the second thin skiff i applied and bolt up with a custom corkrubber gasket and "the right stuff" black gasket maker.
Cold War Motors did it on an engine and it worked fine.
More fun than an all night dentist appointment.
Big t jb weld is a very good product I repaired a radiator iron worked great 7in split in top plastic tank modern cars to much plastic
"like your talking to four year olds" 🤣
I just plugged the weep holes in my 94 rangers 2.3 L waterpump cause it started leaking after 162,000 K miles. Put the pump back in and am running it. I used JB WATERWELD.
You all ought to spend a month traveling and sharing the secrets of automotive mechanics in Cuba. And hey, its probably a deductible business trip
I have only had JB Weld repair anything long lasting for me a few times over the years. Highly over rated for what it's capable of, unless you have very low expectations, then it's great.
The key to a good bond is preparation, if done properly you'd be very surprised how well jb and other epoxies can hold up.