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Gearhead Tries Welding Prop-Shaft To Motor, Car Explodes

A crazy Russian YouTuber tried welding the drive-shaft directly to the motor without a transmission, with predictable results.

Gearhead Tries Welding Prop-Shaft To Motor, Car Explodes

What happens when you connect the drive shaft directly to the crank without a transmission? Your car explodes, basically.

We have Garage 54 for yet another crazy (but instructional) video that asked a simple question: what would happen if you removed the gearbox and tried to connect the drive shaft directly to the crank? The answer is quite astounding.

And destructive.

To start, you need to find a disposable car. Since Garage 54 is in Russia, disposable cars are easy to come by. A Soviet-era Lada Riva is the perfect guinea pig to see what happens when you do something really, really stupid.

Next, remove the transmission. This isn’t particularly difficult, and the boys in Garage 54’s garage didn’t even bother with a hoist--they just tipped the Lada on its side and got to work.

Getting the drive shaft directly connected to the motor can be done in a number of ways, but Garage 54 decided to take apart the transmission and just use the original drive coupling. This meant taking apart the gearbox, which lets us all see that despite the fact the Lada looks to be on its last legs, the transmission was in surprisingly good shape.

Until they chopped it in half, anyway.

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Since the gearbox itself adds quite a bit of length to the drive shaft, they needed to extend the shaft in order to actually reach the motor. This was accomplished with a handy piece of pipe and some vigorous welding. With everything connected, it’s time to go outside and see what happens!

We’re given a preview when Garage 54 holds up a shattered coupling from an earlier test. He then goes out to buy a new one, installs it, and tries to test the Lada again under zero load. This means holding the car up on a jack so the rear wheels are off the ground.

The car starts, but as soon as it gets placed on the ground, it stalls out. Somebody needs to be inside this death machine to give it some gas. Then after giving the Lada tiny bit of throttle, the shaft essentially explodes and takes out a fuel line with it.

Garage 54 might try again with a stronger coupling, or even by directly welding everything without any couplings at all. In the meantime, the lesson here is: you need a transmission.

NEXT: RUSSIAN STARTUP LOOKING TO MAKE A CAR THAT DRIVES ON WATER

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