If you watch videos from other countries, where guys are doing repairs that would seem nearly impossible without modern tools, you start to appreciate and understand what our grandparents and great grandparents were doing to make similar repairs. It’s a true testament to how good something can be even without CNC machines or what have you. In this video, the only equipment used to fix this completely snapped crankshaft is a drill press, a stick welder, and a lathe. The lathe isn’t anything new, but it does seem to work well, and the guy using it clearly knows what he’s doing. But the lathe could be 50 years old or 5, it’s all the same.
Watch as this guy cleans and machines each end of the broken pieces, which might actually be from two different crankshafts, slides them together, indexes them, and then gets his arc welding on. He then straightens the crank, machines the crank, and finally drills the oiling holes in it and then sends it on its way to be used in some truck or what have you. It’s impressive and you’ll dig it.
That guy is amazing, and he never missed a drag on his cigarette and the guy in the chair had to take a break cause is ass got sore.
A crankshaft is a precision part of the engine , miss a few microns off and the pistons will jam. This is complete nonsense and will never work.
This part is poured into form , precision grinded and hardened. Measured by 0.0001 microns of tolerance.
There is absolutely no way in this world that this backyard welding can possibly make this part to work into a engine block. Regardless to how good he might weld.
First, crankshafts aren’t measured in microns, they’re measured in thousandths.
It is entirely possible that a backyard welder MAY be able to weld up a crank, especially of it’s a forged crank.
You’re an idiot. My man is a pure craftsman
Years ago a friend bought a 360 sprint car engine. First race out it blow the guts out. The crank was broken previously and welded back together. Complete junk!
First of all you didn’t show the whole video how did he keep the oil gallery from getting welded and again how did the aline the two pieces of crankshaft together to weld them a lot of things you left out on here I don’t know about why you did it but it sure makes it seem like you Hoodwinked us
First of all Chad you didn’t show the whole video you didn’t show how the guy kept the oil gallery from being welded you didn’t show how to line the two pieces back up and index them there’s a lot of things you didn’t show so I don’t know why I keep people keep bragging on you it looks like you Hoodwinked Us by not showing the whole thing I was disappointed in not seeing the whole video of how he indexed it to get it in the right compression when the Piston came up all right looks like his little b******* in there for me
You must have a miserable life, go get a new 1.
Merry Christmas
And keep the change you Filthy animal!
You have a miserable life. Off yourself
This shop obviously doesn’t follow OSHA safety requirements. Smoking is allowed! How would a North American firm compete with these standards. I mean the guy is wearing flip flops and probably lives behind the shop in a cardboard box.
Now he can afford an OSB box
That was an old 6 cyl. crank he lined cyl 1 and cyl 6 to each other those 2 pistons go up and down the same time. When welds cool they shrink and pull he pushed it back into alignment then turned the main journal back to size. It will work. I’ve done things to old 6 cyl. engines you couldn’t do to new ones and they worked. Couldn’t do it to new ones. Old ones weren’t built to the close of tolerances of today’s engines. That will work.
Tommy, Tommy, Tommy…if you had paid attention throughout the video, you would have noticed the machinist checking the repaired and first throws with his homemade indexing feeler wire thingy. Next time you watch one of these, put the Playstation down first. Ok?
Looks cool
Awesome video great job of course there is alot of what ifs.i believe the oil hole was how it was indexted hatters gonna hate.
Truly one of the most impressive videos I’ve ever watched. This guy knows what he’s doing. Meticulous,step by step , critical measurements and minute adjustments, I’d deem it quite a privilege to be by his side and learn from him. Truly just Badass…
Ditto. Guy knows his shit. Judging by number of cranks laying on the floor, he’s had alot of experience. Must be a common problem with one of their particular motors. Just sayin
Wait…cast crank? What’s he using for rod/filler material?
It is definitely possible to make this Repair. They don’t have the money or means that we do in many over seas countries. They improvise. My grandfather had done this Repair on a couple occasions when I was younger.
I am always amused by the attitude on display here, and quite prevalent in society: “I am not smart enough to do that, therefore no one else could possibly do it, either.”
I have been around long enough to have worked in machine shops before CNC existed. I am FAR from being a skilled, experienced machinist, but I had the distinct pleasure of working with a couple of REAL craftsmen – like the one in this video. They make it look easy, and that allows us to dismiss what they do as impossible.
In an impoverished country (no money) you learn to fix things with whatever means you have at hand, the guy prob earned $7.50 for doing it.
The currency exchange might be 7.50 to you but that 7.50 might be equivalent to a month of your wages and this guy may be richer in he’s country than anyone commenting on here
A chalk stick placed in the oil gallery will keep it open whilst welding.
That was an old 6 cyl. crank he lined cyl 1 and cyl 6 to each other those 2 pistons go up and down the same time. When welds cool they shrink and pull he pushed it back into alignment then turned the main journal back to size. It will work. I’ve done things to old 6 cyl. engines you couldn’t do to new ones and they worked. Couldn’t do it to new ones. Old ones weren’t built to the close of tolerances of today’s engines. That will work.
You start to recognize and recognize what our grandparents and incredible grandparents have been doing to make similar upkeep. It’s a real testament to how accurate something can be even without CNC machines or what have you ever. In this video The subsequent level is content. After you get an online paper editor, they’ll need to over here look at each paper and instructions for an undertaking. They are going to suggest in case you met furnished hints, and if no longer, they’ll accurate your mistakes.