I vote both. I have fixed everything from a cracked T water inlet to my upper denture plate.
I'm almost embarrassed to say it - JB Weld for the pinholes in the inlet of my tired radiator:
Duct Tape ain't what it used to be.
Thin, cheapo, & themed ( Camo, Hello Kitty, etc.)
The modern replacement is Gorilla Tape.
Kind of expensive, but worth it
The model "T" complete Emergency tool kit WD40 and Duct tape! If it moves and it shouldn't duct tape it, If it doesn’t move and it should spray liberally with WD40.
A friend of mine used JB Weld to bed his Babbitt shell bearings in his Economy hit and miss farm motor . It ran fine and long. As he figured it, it was just for show and not for work.
My upper rad inlet rotted out and I got a rad shop to make me a new one and solder it on. The repair lasted about a year and the base of the neck cracked big time causing a huge leak. I took the rad off and sealed it with J B Weld. As soon as I drove it two blocks, it split open again. Today I had plans to drive 1000 kms round trip and drop a grand for a new rad but thought I would try one more thing. With the rad in the car, I spread some RTV black sealant on the crack. I reasoned that it resists water or heat and hopefully both together and wont crack like the rock hard JB. I have now driven all over town and the car does not leak a drop. I sure save a lot of money. I now carry a tube of that stuff with me. I hope this helps somebody some day.
You guys forgot two of the most important things. Baling wire and chunks of leather. Oh and I almost forgot stop leak, horse crap or pepper.
You gotta pay to get the good duct tape anymore. We sell the Nashua 398. Best stuff there is for duct tape but it "ain't" cheap. Our cost on it is almost $7 a roll. But the guys in the mills are happy to pay $8-$9 for it because it works.
As for the topic at hand, I proudly say I use both, and a boatload of super glue too.
It looks like the votes are in. JB Weld, Duct Tape and WD 40. You can Chuck the rest of your tools, ( unless they are Model T Ford tools, in which case you can ship to me.),. Ha Ha Ha
I have a Simmons Super Power high compression head on one of my speedsters. It has a crack a foot long that has twice lasted about 10 years each time with a J B Weld repair. Last time it started seeping I took it to an expert to have it welded and fixed once and for all! After over a month, he gave it back to me and told me he had tried everything he knew and couldn't fix it. I J B Welded it again, and it's sitting on the shelf awaiting installation.
Mike, your "expert" isn't much of an expert if he can't fix a cracked head. There are MANY shops out there that can fix them, although they may be a bit pricey. Just check around. Dave
Perhaps he couldn't fix it because the budget was $10.