Rope Start a Car With a Dead Battery

From YouTube:
"...demonstrate a way to start your car (when the battery is dead) without pushing it or using jumper cables."






031417
Mordhaussays...

Cool, modified clutch start. My guess is that it also has to be on a car without a limited slip differential or you would have to raise both wheels. *promote

siftbotsays...

Promoting this video and sending it back into the queue for one more try; last queued Tuesday, March 14th, 2017 2:09am PDT - promote requested by Mordhaus.

newtboysays...

Yes, one wheel.
Because he has a car with a differential and the other wheel is stationary, all the rotational energy goes to the transmission, clutch, then flywheel, then crankshaft. By putting it in low gear, he gains enough mechanical advantage to spin the motor past top dead center on a cylinder and has enough battery power left to get a spark (i think he doesn't spin it fast enough to generate one), and once one cylinder fires, it spins itself up to proper rpms.
This only works on open diffs, manual transmissions, and smaller, low compression motors. You could never pull hard enough to start a big v8 like this unless your name is Magnus.

toferyusaid:

Interesting.
Did he lift only one front wheel ?
If so how could that work, if not how does he lift both front wheels at the same time ?

Paybacksays...

I know he says that neither option is available to you, but I figure this particular method, performed apparently by yourself, pulling the car towards you, supported by the cheap shit jack your car came with, would be a recipe for disaster.

You trip, the jack flops over, the car drives over you. The parking brake is designed to stop your car from rolling, not stop it from moving in the gear with the most torque at low RPMs.

In this day and age, there is almost nowhere you couldn't call AAA (CAA in Canada). This is silly and dangerous.

ChaosEnginesaid:

or just getting someone to help you push start the damn thing?

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