Excellent repair work man I was always afraid of the repairs of gas tanks for obvious reasons but you showed it could be done safely. I also love the tip on syphoning on the hose.
I've welded few gas tanks quite similarly. What I do is that I put biggest hole up, fill tank absolutely full with water (no air space allowed). When I get tank really full that it's close as possible to overfill I take propane torch and ignite gas that's risen on top and let it burn out. Then I begin pour out water and keep flame _all the time_ right at the edge of the hole. It's common to get some "puffs" occasionally, but that's the point. To ignite possible gasses before they mix out with air for ratio and amount that's really explosive. Then when emptying and still holding that naked flame all the time I begin to heat tank from the outside to get those trapped vapors out of pores. If the naked flame gets out of the hole or extinguishes even for second I restart the process. Fill the tank again with water and basically restart everything. Doing this with care results in tank you can't smell gas at all and is perfectly safe to weld. Welding tanks isn't too bad of an process. You just need to focus on job and safety. Very good rule is that if something feels somewhat fishy or bad when going into it, one should rethink the hole process again. Also with gas tanks is good to have that mentality that if you smell fuel, you're likely doing something wrong and definitely need to be careful and think again what one is going to do next.
That's a great tip on running the exhaust through the tank. I remember trying to repair a couple of 5 gal tanks for the boat 50 years ago. Rinsed the tank 3 times and filled it with water, turned it upside down with the lid on it. Hit it with the torch and it jumped about 2 feet into the air. I went and got some JBweld to finish the tanks with. LOL Also loved the venturi syphoning trick.
I watched your tank repair method with interest as I've done a few and added necks and outlets to different spots. People need to be able to do repairs that would otherwise put their vehicle out of commission. I would guess one person in a hundred would even attempt this job; so good for you. I always soldered mine which isn't as strong but is much easier to do and gives a great seal. Your exhaust method works, and I've used it, but is suspect because modern cars inject enough air into the exhaust to burn the remaining CO and hydrocarbons. My first tanks were flushed with 79 cent cans of R-12, which gives you an idea how long ago that was. Almost any freon will work as long as it's not flammable. They all produce toxic fumes in a flame though so work upwind or hold your breath. As I got older and smarter I got some CO2 tanks, as used in beer tanks, and used them to flush the tank. Two ounces ,by weight, of CO2 will displace about 5 gallons of air. Obviously dry ice will work too. Nitrogen will also work as will Argon/CO2 mix. Surprisingly full tanks are less likely to blow up because they contain less air and the air they do contain is too rich in fuel or over the UEL Upper Explosive Limit. I don't recommend working on full tanks though; as a mistake makes a very bad scenario. Empty tanks are not safe either though. Don't be fooled by a tank can flash more than once as fresh air gets back into the tank and mixes with combustable vapors given off by you heating the metal. The bad news is then you might have molten metal present and you get it in the face. When there are pin holes like you have there, I like to tin the area around them and put a short sheet metal screw in the hole and then solder the screw head to the tank. Often people overlook the old fashioned heavy copper soldering irons which work extremely well on gas tanks and don't overheat the thin metal as a torch might. If you overheat the metal when soldering it gets a layer of oxide and won't tin. Thanks for the video.
Soldering with a soldering copper is much better and safer then brazing with an open flame, a process I learned decades ago the hard way! I love your confidence with a pole and the propane torch but the $30,000 truck is parked next to the tank!
Great video. Lot's of good safety information. First video with great tips and info I've seen on welding on a gas tank. I'm saving this one, thumbs up!
Although Exploding Death might be a good name for a heavy metal band, it’s definitely not what you want when repairing a gas tank! Great job, and video.
Excellent video. I've learned about this but never seen it done. Engineering courses did not stress ventilation, but adding water was a MUST. Flammability triangle is Oxygen, Fuel, and Ignition source, so filling it up with water removes Oxygen from the picture. So hot fuel (if trapped), cannot combust. Thanks again for the video!
@@sixtyfiveford as an added check, I put dishwashing detergent in the water in the tank, sloshed it around to break the oil barrier and bind any remaining fuel to the water. Seemed like a good idea, but still felt a bit sketchy lighting up a torch right on top of it lol.
sixtyfiveford oh, sorry i misread that then. ussually "..." means somebody is pausing, like they arent happy with you. i was afraid id touched on a vehicle brand favoritism like how people bicker over dodge/ford/gm or whatever. haha
Nice video, I actually didn't really think of bronzing it, which is a great idea, I have to pull the fuel tank off my tuscon, and this video seems to be a real help
Isn't that the slickest siphoning trick ever???? lol...Thanks for the shout out my Friend! Excellent repair job...good for the Grandkids now! You are more than welcome to link the quick tip video if you wish. Cheers!! Zip~
I love the idea hooking the tank up to the car exhaust, Heck yea that will work! I could of fixed up my 1956 Olds gas tank like that but I was young and dumb back then
Actually it is the FUMES that burn. Look up running vehicles/engines of fumes here on RUclips. Pretty cool stuff. I have tried it on a small scale in my mower. It does work as long as you can make the fuel warm to help turn to vapor.
I love that truck! I tried to buy one just like it when I was a teenager but the guy wanted too much for it for the condition it was in. couldn't stop laughing seeing you with that long pole and helmet. guess you wanted to keep all the extremities lol
I think he should have run the exhaust pipe fumes through the tank about 3 days and filled the tank with water about 15 times, then filled the tank with sand and had a fire truck nearby just in case there was a flame 🔥 present, just as a quadruple or quintuple precaution.
Yeah, empty gas tanks, that still have a little bit of fumes inside, are more dangerous, than granade. People lost their heads, trying to weld that. You could also fill it with water, but that would present a problem for welding and other non-flammable gasses can be expensive.
Safty first lol. I like the torch on the end of the stick. I haven't seen anyone weld a gas tank in years. Now we just replace and don't rebuild anything.
Back in the day we used to solder the tanks using a soldering iron, not the electric guns, but the large ended, old time iron that we would heat up with the torches. I did set the car wash floor on fire at our body shop once...but that is another story...
+The Shade Tree Fix-it Man Soldering is hugely under regarded, yes, works very well on steel. And yep, even as an electronics type person, I have a few 3/4 to 1Lb soldering irons around (Some guy was selling them as scrap copper!). Damn things are awesome. Small rust hole in steel, not a problem!
+sixtyfiveford I do believe it was regular plumbing solder that we were using. The trick is to get it clean, then put plenty of flux on it and "tin" the repair area before actually doing the final fill of lead. That was over 30 years ago now for me.
It still works :)... yes, tinning is vital. Many people think that solder is only good on copper/brass. But with the right flux, steel is easily soldered. I've used it before to do proper earthing of electrical appliances too
I solder up gas tanks . I normally take the air compressor blow gun and tape it down and tape it to the fuel filler pipe. Then I solder it. That keeps air blowing threw it so it doesn't build up any fumes. I've even done it with a vacuum cleaner before.
deme7063 I had family members who did so I've been there quit a few times. Last time I was there I found this plate on an abandoned, stripped down car on the beach.
Nice video. My mechanic showed me this morning that my little commuter cars gas tank showed some residue of gas and suggested it may be seeping because my car does have rust throughout. He suggested I leave it alone and drive it because the bolts holding it may be seized and will cause more issues for me and the car. He knows the car is sentimental to me being it’s my first car but suggested I look into another commuter. I don’t have these tools or know how you show but is there another suggestion in my case where I can coat the whole gas tank to preserve its life something like a a big tube of jb weld
Great video!! Por-15 also has a decent product that I discovered for restoring fuel tanks and dealing with internal rust. It's lasted me 20+ years on the OEM 1986 tank of my Suburban 2500. Not a spec of rust in the fuel filter since I used the product all those years ago too. Pricey however.
It's awful expensive @ ~$90 to seal a tank with Por-15. You might be able to just buy a replacement tank for that much. For example my 1986 Suburban K20 gas tank would cost about $100 to replace with a new tank. But I'm sure you'll agree..there's always more than one way to skin a cat. ;-)
+Bobby John Yeah, I've quit a few stories of stuff. Mostly good but a few bad. This tank is rust free on the inside but definitely think a coating is a good idea on a tank that has a rusty interior.
Good video. I've had JB weld fail before, and it seemed to be related to ethanol in the gasoline.JB was holding fine, and the first gas with ethanol, it started leaking. And this happened on two different machines---each with the first use of ethanol.
+Kurtis Davis I agree. I've done a few tests with putting JB Weld, Quick Steel and Bondo into a jar with enthanol/gasoline(e10) and they all seem to soften but never dissolve. The Quick Steel putty seams to be better and that is what I believe I had on this tank. It held for the past 15 years with the last 6+ being ethanol laced fuel. The failure of this one seams to be rust migrating between the bond, which can be ethanol caused. Ethanol is hydroscopic, so it absorbs moisture out of the air and holds it. The water ethanol then sinks to the bottom of your tank and causes rust.
+sixtyfiveford That pretty well confirms it for me---ethanol caused my patches to fail. The patches turned somewhat "rubbery" and formed a white/gray border. I have wondered if I simply failed to put on enough JB, but your example displays a much better patch than I made, so....I am firmly convinced that ethanol is no good for a variety of reasons. Henry Ford spent a fortune developing ethanol, and abandoned such effort---all the reasons why apply today.Thanks for your excellent video. Might mention I have a '73 Ford F-350 "super camper special" (My tank patches failed on an 'ol Chevy and a classic Ford 9-N tractor).
I hope you don't take offense to this comment. The siphon technique is know as the Venturi principle, or Venturi effect. It's the basic idea of the carburetor. A plain and simple idea. It is also used in those waterbed pumps, that connect to a sink faucet. Turn on the water at the faucet, and it sucks the water from the bed. They also use those in auto shop vacuum tanks. An air hose is connected to a fitting, turn on the shop air, and it will vacuum out a trans pan, oil pan, or a radiator. The video you did about making your own vacuum pump with an old compressor, you used fitting from an old a/c vacuum device. It was the small red plastic tool, with the shop air line nipple on one end, and the two sized a/c line connector on the other. That device worked the exact same way as the blow nozzle across the end of the siphon hose trick, you demonstrated.
its all relevant. Not too many people who are not educated in fluid dynamics, have never heard of Bernoulli! Many educated people will argue that both principles are very similar, and both arise from newtons 3rd law of motion. I personally believe they are both the same idea, from two different times, from two different people, under two different names, concerning one scientific effect. The idea that Venturi only takes place in an enclosed nozzle, is ridiculous!
roadkill5333 They seem to me to be the same principle but inverse. I didn't say Venturi effect only happens in nozzles. I used carb nozzles as an example.
Excellent job, is it still good. I did mine with silver solder and that worked fine as well.. Watch all your vids....great channel..take care. Happy New Year!
Gas won't burn as a liquid, it has to to vaporize . As a crash fireman I lit gasoline fires to train with. A hundred gallons at a time. You could actually have hard time lighting it without agitating it to get fumes.
HOoly shit , that was a steep incline !! nicely executed !!!! to your vid i might ad ,normal soder with the right flux and only electric soder iron , i made a alost half full gas tank on the car with lifted tail end to fit under , worked a treat ,but it have to be a big ass sodering iron tho ,this was a boat sodering iron a inch thick and took half hour to warm up but it worked ! some zinn 1 flux is gret for the job as flux!
sixtyfiveford well that is a must!! i havent tryed it myself , but ive heard that pine amber is a real good flux! guess it isnt called amber when its still soft!
I braze with my oxy propane all the time. Heats up everything I need to. Normally it's on thinner stuff. And the thicker stuff I get with my stick welder
That's pretty cool and I don't know if you will comment or respond. Here's my question, is buying a new one from let's say eBay or Parts Geek a good idea? Maybe I'm just stupid but I'd think a tank from like the 70s or 80s would be twice as thick. Granted we understand Metal a lot better nowadays.
All the cheap tanks I've installed for people are horrible steel and won't hold up long term. That's why I chose to repair. Now if my tank was rusted on the inside everywhere I would have replaced it.
I would have hit that area after a good clean up with two layers of epoxy primer followed by two layers of good paint and then undercoating, especially where those straps run to hold up the tank.
Hi, Very nice and great video. I have a gas tank that has been removed from the car for about a year and has been out side with no cap on it. It is completely dry inside and I do not smell any fume. is is safe to sand it with a sander that can generate spark? someone told me something with gas that it will never go away even sitting outside for 10 year
Personally I wouldn't have an issue sanding on. Leave it open to the air(don't cap it) and you'll be fine. I've heard the same and don't believe it if there is no smell.
+2LateIWon I had to horse trade from smaller to bigger over the years. It's darn near the same price to fill a huge tank as it is a small tank and they last forever.
Thats what Ive heard. I dont use mine all that much but when I do I tend to run out pretty quickly. (And Ive checked to make sure I had no leaks every time LOL) But I'm REALLY leaning toward bigger tanks.
Center Enamel is the first and most experienced Glass-Fused-to-Steel tanks manufacturer in Asia. Center Enamel has more than 30 years of experience in Glass-Fused-to-Steel bolted tanks design, manufacture and installation.
+mrsemifixit You would only worry about that in a carburetor vehicle. But even then you would need to get a fuel to air ratio just right to ignite. Gasoline is picky about how it burns and likely wouldn't ignite unless you injected a good amount of fresh oxygen into the tank.
Hey man, great video. How long did you wait after you drained the water? The place I took my fuel tank to get welded used water as per your video and I have been draining the water from the tank since but am wondering what can be classified as enough waiting time to assume the inside is dry? Should I also pour some other chemical to absorb the water totally?
Do your neighbors give you weird looks at night when they see you with a propane torch duct taped at the end of a 5 foot long pole? Mine don't. The old Ford has a few more gallons to drink now. Nice fix.
Excellent repair work man I was always afraid of the repairs of gas tanks for obvious reasons but you showed it could be done safely. I also love the tip on syphoning on the hose.
I always learn something by coming here. That was a great repair and i loved the air across the hose to draw out the water tip.
+wyattoneable I was excited the first time I saw the water/air hose trick.
I've welded few gas tanks quite similarly. What I do is that I put biggest hole up, fill tank absolutely full with water (no air space allowed). When I get tank really full that it's close as possible to overfill I take propane torch and ignite gas that's risen on top and let it burn out. Then I begin pour out water and keep flame _all the time_ right at the edge of the hole. It's common to get some "puffs" occasionally, but that's the point. To ignite possible gasses before they mix out with air for ratio and amount that's really explosive. Then when emptying and still holding that naked flame all the time I begin to heat tank from the outside to get those trapped vapors out of pores. If the naked flame gets out of the hole or extinguishes even for second I restart the process. Fill the tank again with water and basically restart everything. Doing this with care results in tank you can't smell gas at all and is perfectly safe to weld. Welding tanks isn't too bad of an process. You just need to focus on job and safety. Very good rule is that if something feels somewhat fishy or bad when going into it, one should rethink the hole process again. Also with gas tanks is good to have that mentality that if you smell fuel, you're likely doing something wrong and definitely need to be careful and think again what one is going to do next.
That's a great tip on running the exhaust through the tank. I remember trying to repair a couple of 5 gal tanks for the boat 50 years ago. Rinsed the tank 3 times and filled it with water, turned it upside down with the lid on it. Hit it with the torch and it jumped about 2 feet into the air. I went and got some JBweld to finish the tanks with. LOL Also loved the venturi syphoning trick.
I watched your tank repair method with interest as I've done a few and added necks and outlets to different spots. People need to be able to do repairs that would otherwise put their vehicle out of commission. I would guess one person in a hundred would even attempt this job; so good for you. I always soldered mine which isn't as strong but is much easier to do and gives a great seal. Your exhaust method works, and I've used it, but is suspect because modern cars inject enough air into the exhaust to burn the remaining CO and hydrocarbons. My first tanks were flushed with 79 cent cans of R-12, which gives you an idea how long ago that was. Almost any freon will work as long as it's not flammable. They all produce toxic fumes in a flame though so work upwind or hold your breath. As I got older and smarter I got some CO2 tanks, as used in beer tanks, and used them to flush the tank. Two ounces ,by weight, of CO2 will displace about 5 gallons of air. Obviously dry ice will work too. Nitrogen will also work as will Argon/CO2 mix. Surprisingly full tanks are less likely to blow up because they contain less air and the air they do contain is too rich in fuel or over the UEL Upper Explosive Limit. I don't recommend working on full tanks though; as a mistake makes a very bad scenario. Empty tanks are not safe either though. Don't be fooled by a tank can flash more than once as fresh air gets back into the tank and mixes with combustable vapors given off by you heating the metal. The bad news is then you might have molten metal present and you get it in the face. When there are pin holes like you have there, I like to tin the area around them and put a short sheet metal screw in the hole and then solder the screw head to the tank. Often people overlook the old fashioned heavy copper soldering irons which work extremely well on gas tanks and don't overheat the thin metal as a torch might. If you overheat the metal when soldering it gets a layer of oxide and won't tin. Thanks for the video.
.9.ll,l.
Using the exhaust to prevent a flame was really smart. I never would've thought of something like that.
But maybe the scratching at it with a screwdriver could have caused a spark?
My ‘73 Caddy is running so rich, I’m not sure this will help lol!
Big thumbs up for showing me that trick using the hoses venturi effect with the air compressor to start liquid flowing.
Thanks, I'm glad you liked it.
Soldering with a soldering copper is much better and safer then brazing with an open flame, a process I learned decades ago the hard way! I love your confidence with a pole and the propane torch but the $30,000 truck is parked next to the tank!
Gary Hutchins More like $2500 ,that’s about a 2001 expedition
Great video. Lot's of good safety information. First video with great tips and info I've seen on welding on a gas tank. I'm saving this one, thumbs up!
Although Exploding Death might be a good name for a heavy metal band, it’s definitely not what you want when repairing a gas tank! Great job, and video.
very informative, I really like the focus on being safe
I’m surprised you did the flame check next to your vehicle. Nice job as always. Your my go to guy for common sense repairs.
Excellent video. I've learned about this but never seen it done. Engineering courses did not stress ventilation, but adding water was a MUST. Flammability triangle is Oxygen, Fuel, and Ignition source, so filling it up with water removes Oxygen from the picture. So hot fuel (if trapped), cannot combust.
Thanks again for the video!
Glad you enjoyed it!
Nice fix! I really liked that siphoning trick.
+cubbeezx Thanks. I really like the siphoning trick as well and give full credit to the youtuber Zippovarga.
ahhh, venturi!
9:00
Dude, thanks. I was wondering how to purge the old flammable gas out until you showed how you did it with exhaust gas. Very helpful video in general.
Thank's I'm glad you liked it.
@@sixtyfiveford as an added check, I put dishwashing detergent in the water in the tank, sloshed it around to break the oil barrier and bind any remaining fuel to the water. Seemed like a good idea, but still felt a bit sketchy lighting up a torch right on top of it lol.
Sweet, this is exactly what i needed to see thank you!
Awesome.
thats a really nice truck, reminds me of our 1985 Dodge Ram we had for a long time.
+Rinoa Super-Genius Thanks...
sixtyfiveford
did i say something bad?
I don't think so.... ?
sixtyfiveford
oh, sorry i misread that then. ussually "..." means somebody is pausing, like they arent happy with you. i was afraid id touched on a vehicle brand favoritism like how people bicker over dodge/ford/gm or whatever. haha
I guess I use the .... too much.
Good video. To the pointbgood knowledge on subject. Clear filming snd sound. Thumbs up
Hey Thanks.
Think I'd move my truck out of the way before sticking a flame in the tank..!🤣
Wow. You're a champion. I weld *new* tanks. Never had the male reproductive oval organs to weld on a used gas tank.
Lol , 👍👍
Nice video, I actually didn't really think of bronzing it, which is a great idea, I have to pull the fuel tank off my tuscon, and this video seems to be a real help
Great fix and I like how safe you were about everything.
+Wipsplash Thanks.
SAFE!!! M.A.
Isn't that the slickest siphoning trick ever???? lol...Thanks for the shout out my Friend! Excellent repair job...good for the Grandkids now! You are more than welcome to link the quick tip video if you wish. Cheers!! Zip~
+ZippoVarga It's a slick trick for sure. Thanks for that.
Nice fix man that old ford looks good for her year to
+Michigan Farming She's been a great truck.
MAP works with the correct torch, I've done it many times
I love the idea hooking the tank up to the car exhaust, Heck yea that will work! I could of fixed up my 1956 Olds gas tank like that but I was young and dumb back then
Thanks very much for your expertise I appreciate listening to you and watching you
Thanks, I'm glad you liked it.
Another big money saving tip! I liked the siphon idea
+Tim theToolman Thanks. When I first saw the siphon trick I was impressed.
You can also run exhaust from a running vehicle in the tank while you weld. Carbon monoxide will not burn.
That's what he did.
I have heard that also !!!!!!!!!
Wayne Trent I heard it too. In this video, because he said what he was doing... IN THE VIDEO.
De-Ja-Vu
As always great Workmanship!! :)
Thanks for watching.
4:57 - "It goes HOOWOOSH" lol! Made my day!
Thanks for watching.
Very cool and makes sense. Trying to learn about cars.
rock climbing vid at end is awesome and inspiring, thanx for that!
Thanks Man.
Actually it is the FUMES that burn. Look up running vehicles/engines of fumes here on RUclips. Pretty cool stuff. I have tried it on a small scale in my mower. It does work as long as you can make the fuel warm to help turn to vapor.
I love that truck! I tried to buy one just like it when I was a teenager but the guy wanted too much for it for the condition it was in.
couldn't stop laughing seeing you with that long pole and helmet. guess you wanted to keep all the extremities lol
+drvnucrzy It's been a great truck and a lot of fun to own.
I think he should have run the exhaust pipe fumes through the tank about 3 days and filled the tank with water about 15 times, then filled the tank with sand and had a fire truck nearby just in case there was a flame 🔥 present, just as a quadruple or quintuple precaution.
Two tanks? What sorcery is this. That's... awesome
+TheChipmunk2008 When they drink this much fuel you need a second tank.
Yeah, empty gas tanks, that still have a little bit of fumes inside, are more dangerous, than granade. People lost their heads, trying to weld that. You could also fill it with water, but that would present a problem for welding and other non-flammable gasses can be expensive.
dry ice
Nice repair Moe, Thanks for sharing!
+old64goat Thanks...
another good one Moe, I want to come back in 30 years to see if you were right.
+Robb's Homemade Life / Yeah well see.
great video. Really like that air gun/ siphoning tip
+MUTANT PAIN 5%er Thanks. I give credit to the youtuber Zippovarga
Safty first lol. I like the torch on the end of the stick. I haven't seen anyone weld a gas tank in years. Now we just replace and don't rebuild anything.
+ShawnCFarm Thanks.. Yeah, fixing items like these are becoming a lost art.
Back in the day we used to solder the tanks using a soldering iron, not the electric guns, but the large ended, old time iron that we would heat up with the torches. I did set the car wash floor on fire at our body shop once...but that is another story...
+The Shade Tree Fix-it Man I've had mixed results about getting solder to bond to steel. Do you recall if you were using 100% lead?
+The Shade Tree Fix-it Man Soldering is hugely under regarded, yes, works very well on steel. And yep, even as an electronics type person, I have a few 3/4 to 1Lb soldering irons around (Some guy was selling them as scrap copper!). Damn things are awesome. Small rust hole in steel, not a problem!
+sixtyfiveford
I do believe it was regular plumbing solder that we were using. The trick is to get it clean, then put plenty of flux on it and "tin" the repair area before actually doing the final fill of lead. That was over 30 years ago now for me.
It still works :)... yes, tinning is vital. Many people think that solder is only good on copper/brass. But with the right flux, steel is easily soldered. I've used it before to do proper earthing of electrical appliances too
+TheChipmunk2008
The tube that the throttle linkage runs through on my Gadget Bike build is soldered in place and works great!
I solder up gas tanks . I normally take the air compressor blow gun and tape it down and tape it to the fuel filler pipe. Then I solder it. That keeps air blowing threw it so it doesn't build up any fumes. I've even done it with a vacuum cleaner before.
+1970chevelle396 What are you using for solder?
Same Solder and flux for doing copper pipes.
Hawaii? I like the siphon trick. A good tank sealer is Red Kote, I use it for Motorcycle tanks.
+Goomer I like to mess with the more observant viewers by throwing different license plates on.
+sixtyfiveford Just making sure I'm paying attention in case there's a Quiz later.
+sixtyfiveford caught that too. did you ever live there?
deme7063 I had family members who did so I've been there quit a few times. Last time I was there I found this plate on an abandoned, stripped down car on the beach.
Nice repair, super siphoning trick. That JB Weld did a good job though for all those years.
Cheers
Martin
+retrorestore Yeah, I'm impressed with the JB Weld.
Nice video. My mechanic showed me this morning that my little commuter cars gas tank showed some residue of gas and suggested it may be seeping because my car does have rust throughout. He suggested I leave it alone and drive it because the bolts holding it may be seized and will cause more issues for me and the car. He knows the car is sentimental to me being it’s my first car but suggested I look into another commuter.
I don’t have these tools or know how you show but is there another suggestion in my case where I can coat the whole gas tank to preserve its life something like a a big tube of jb weld
Great video!! Por-15 also has a decent product that I discovered for restoring fuel tanks and dealing with internal rust. It's lasted me 20+ years on the OEM 1986 tank of my Suburban 2500. Not a spec of rust in the fuel filter since I used the product all those years ago too. Pricey however.
+wxfield I've heard people using Por-15, but have never tried it myself.
It's awful expensive @ ~$90 to seal a tank with Por-15. You might be able to just buy a replacement tank for that much. For example my 1986 Suburban K20 gas tank would cost about $100 to replace with a new tank. But I'm sure you'll agree..there's always more than one way to skin a cat. ;-)
There is a bunch of good tips in this video. Thanks.
+57WillysCJ Thanks Man...
Good repair. I believe there is a liquid that you can put in the tank and slosh / rotate it around to seal the tank. Good videos.
+Bobby John Yeah, I've quit a few stories of stuff. Mostly good but a few bad. This tank is rust free on the inside but definitely think a coating is a good idea on a tank that has a rusty interior.
The strap on my '96 F150 collected moisture & caused my tank to rust, too.
That sucks.
This is a fantastic video!!! Great information and nicely put together. Thank you so much for this!
Thanks, I'm glad it was helpful.
I like the fumes to dry out the tank and That climb looked like straight up, I'm not sure about doing that. LOL
+STEVE ROB Yeah, the camera saw more of the path than I did going up.
If you are going to take on a gas tank that is the way to approach it. All the caution and warnings are here in the video...
+Curiosity It can be dangerous for sure.
Good video. I've had JB weld fail before, and it seemed to be related to ethanol in the gasoline.JB was holding fine, and the first gas with ethanol, it started leaking. And this happened on two different machines---each with the first use of ethanol.
+Kurtis Davis I agree. I've done a few tests with putting JB Weld, Quick Steel and Bondo into a jar with enthanol/gasoline(e10) and they all seem to soften but never dissolve. The Quick Steel putty seams to be better and that is what I believe I had on this tank. It held for the past 15 years with the last 6+ being ethanol laced fuel. The failure of this one seams to be rust migrating between the bond, which can be ethanol caused. Ethanol is hydroscopic, so it absorbs moisture out of the air and holds it. The water ethanol then sinks to the bottom of your tank and causes rust.
+sixtyfiveford That pretty well confirms it for me---ethanol caused my patches to fail. The patches turned somewhat "rubbery" and formed a white/gray border. I have wondered if I simply failed to put on enough JB, but your example displays a much better patch than I made, so....I am firmly convinced that ethanol is no good for a variety of reasons. Henry Ford spent a fortune developing ethanol, and abandoned such effort---all the reasons why apply today.Thanks for your excellent video. Might mention I have a '73 Ford F-350 "super camper special" (My tank patches failed on an 'ol Chevy and a classic Ford 9-N tractor).
I hope you don't take offense to this comment. The siphon technique is know as the Venturi principle, or Venturi effect. It's the basic idea of the carburetor. A plain and simple idea. It is also used in those waterbed pumps, that connect to a sink faucet. Turn on the water at the faucet, and it sucks the water from the bed. They also use those in auto shop vacuum tanks. An air hose is connected to a fitting, turn on the shop air, and it will vacuum out a trans pan, oil pan, or a radiator. The video you did about making your own vacuum pump with an old compressor, you used fitting from an old a/c vacuum device. It was the small red plastic tool, with the shop air line nipple on one end, and the two sized a/c line connector on the other. That device worked the exact same way as the blow nozzle across the end of the siphon hose trick, you demonstrated.
Venturi effect is what takes place in nozzles like inside the carburetor. The siphon in this video uses Bernoulli's principle.
its all relevant. Not too many people who are not educated in fluid dynamics, have never heard of Bernoulli! Many educated people will argue that both principles are very similar, and both arise from newtons 3rd law of motion. I personally believe they are both the same idea, from two different times, from two different people, under two different names, concerning one scientific effect. The idea that Venturi only takes place in an enclosed nozzle, is ridiculous!
roadkill5333 They seem to me to be the same principle but inverse.
I didn't say Venturi effect only happens in nozzles. I used carb nozzles as an example.
Another way to check if the gas has completely evaporated is to light a match at the opening of the tank. Just kidding of course. Another great video!
+Dasdfjkl That's the fun way.
Dude that exhaust trick is genius.
+jevchance It seams to work out nicely. I haven't blown myself up yet.
More good tips and tricks. Thanks Moe!
I found I have to start a big circle and work my way to the hole.Hard to get to stop leaking
That hill looked like it was vertical. That is some truck you have there.
+Dasdfjkl Thanks. It was steep.
can I use this same technique if I needed to cut an access opening to fix EVAP hoses in the tank?
Excellent job, is it still good. I did mine with silver solder and that worked fine as well.. Watch all your vids....great channel..take care. Happy New Year!
It is still holding up great. If I did it again I would probably go the solder route as well. Brazing can be time consuming and tedious as times.
Great fix and great looking truck!
+MikeGuy993 Thanks Man.
Great job. That the answer Im looking for.
great fix
+Rodder Files Thanks Man.
That near vertical rock climb was way sketchier to me than the tank repair. Great how-to on gas tank safety for hot process repair too!
Yeah, that was a fun one.
nice video i learned a few new tricks from u. tnx
Thanks, I'm glad you liked it.
Good job brother. God bless you
Hey thanks
Gas won't burn as a liquid, it has to to vaporize . As a crash fireman I lit gasoline fires to train with. A hundred gallons at a time. You could actually have hard time lighting it without agitating it to get fumes.
awesome the way you drain the water. thank you. joined
Thanks for watching.
HOoly shit , that was a steep incline !! nicely executed !!!! to your vid i might ad ,normal soder with the right flux and only electric soder iron , i made a alost half full gas tank on the car with lifted tail end to fit under , worked a treat ,but it have to be a big ass sodering iron tho ,this was a boat sodering iron a inch thick and took half hour to warm up but it worked ! some zinn 1 flux is gret for the job as flux!
+transdetendal I have a few massive soldering irons I just need some new flux to help bond the solder to steel.
sixtyfiveford
well that is a must!! i havent tryed it myself , but ive heard that pine amber is a real good flux! guess it isnt called amber when its still soft!
Thank you for taking the time to explain.
Thanks, I'm glad you liked it.
very good fix moe , Thumbs up !
+ShawnMrFixitlee Thanks Shawn.
I braze with my oxy propane all the time. Heats up everything I need to. Normally it's on thinner stuff. And the thicker stuff I get with my stick welder
Great video again and very informative, keep um coming mate 👍
Thanks, I'm glad you liked it.
Excellent work!
+A LeBlanc Thanks. I seams to hold gas, so I accomplished my goal.
That's pretty cool and I don't know if you will comment or respond. Here's my question, is buying a new one from let's say eBay or Parts Geek a good idea? Maybe I'm just stupid but I'd think a tank from like the 70s or 80s would be twice as thick. Granted we understand Metal a lot better nowadays.
All the cheap tanks I've installed for people are horrible steel and won't hold up long term. That's why I chose to repair. Now if my tank was rusted on the inside everywhere I would have replaced it.
I would have hit that area after a good clean up with two layers of epoxy primer followed by two layers of good paint and then undercoating, especially where those straps run to hold up the tank.
Hi, Very nice and great video. I have a gas tank that has been removed from the car for about a year and has been out side with no cap on it. It is completely dry inside and I do not smell any fume. is is safe to sand it with a sander that can generate spark? someone told me something with gas that it will never go away even sitting outside for 10 year
Personally I wouldn't have an issue sanding on. Leave it open to the air(don't cap it) and you'll be fine. I've heard the same and don't believe it if there is no smell.
i need bigger oxyacetylene tanks. i use it for lots of things but I've never tried brazing.
man that was a step hill.
as always great vid
+2LateIWon I had to horse trade from smaller to bigger over the years. It's darn near the same price to fill a huge tank as it is a small tank and they last forever.
Thats what Ive heard. I dont use mine all that much but when I do I tend to run out pretty quickly. (And Ive checked to make sure I had no leaks every time LOL) But I'm REALLY leaning toward bigger tanks.
Nice repair man
+one4stevo Thanks. It holds gas and so it's a good repair in my book.
very useful knowledge, excellent video.
+Kamal Gill Thanks for tuning in.
i use to weld tanks best bet to buy new tank if at all possible good video
Sure, but you can't buy tanks for everything.
Center Enamel is the first and most experienced Glass-Fused-to-Steel tanks manufacturer in Asia. Center Enamel has more than 30 years of experience in Glass-Fused-to-Steel bolted tanks design, manufacture and installation.
???
Very informative, and makes sense. Thanks very much
Thanks, I'm glad you liked it.
Nice! Curious, when you were letting exhaust fumes in to help dry it out, what if it was running rich and some unburnt fuel went into the tank?
+mrsemifixit You would only worry about that in a carburetor vehicle. But even then you would need to get a fuel to air ratio just right to ignite. Gasoline is picky about how it burns and likely wouldn't ignite unless you injected a good amount of fresh oxygen into the tank.
Explosive limits are about 1.4-7.6% gasoline to fuel. Like he said it is picky.
Exhaust pipes have lots of moisture coming out
Good video! shared with my car group! :)
Thanks.
Its been 4 years since this video how well did it hold up???
Still holding gas just fine.
I do that when I weld up motorcycle gas tanks and even when I am welding because it will let smoke come out of any holes are
Thanks for the video!
Hey man, great video. How long did you wait after you drained the water? The place I took my fuel tank to get welded used water as per your video and I have been draining the water from the tank since but am wondering what can be classified as enough waiting time to assume the inside is dry? Should I also pour some other chemical to absorb the water totally?
he probably used the exhaust method to dry out the water too!
I liked the ending
+wtbm123 It was a fun time.
Mr Ford ,you know we gearheads like explosions and burnt eyebrows.!
Absolutely.
good job- thanks for sharing
Do your neighbors give you weird looks at night when they see you with a propane torch duct taped at the end of a 5 foot long pole? Mine don't. The old Ford has a few more gallons to drink now. Nice fix.
+Ozzstar Yeah, I think they're used to it. I'm sure I'm the topic of discussion once in a while around the dinner table.
+sixtyfiveford your normal to me, the neighbors are the weird ones, pass the salt n pepper please lol
Wicked nice tip. Thanks for sharing...
+Bob Cotter Thanks for watching Bob. -Moe
Could you solder those holes??? No open flame. Thanks
+Bobby John Yeah, you can use lead solder and an electric soldering iron. Or just use some JB weld and it'll outlast most vehicles.
You're the man Moe
Hey Thanks Man.