I am attempting to remove the bolt that holds the crankshaft pulley. However, even with a long bar, the car in sixth gear and the brake on, it was not possible to undo the bolt. I found online that another way to loosen the bolt is to rest the bar against a part of the chassis and then turn the engine over. However, having tried this, the starter motor didn't have enough power to loosen the bolt.
I have been thinking of another way to loosen the bolt, and I have thought of my own method. I can't find any information about such a method online, so I am looking for some advice about whether this method would work.
My proposed method is to take the car to a small hill and place the bar against a part of the chassis. Then, with the engine off, press the clutch and then once the car is barely moving (1mph or less), lift the clutch up to crank the engine over, with the hope being that this can exert a little more torque than the starter motor on the bolt.
My main worry with this method though is that it may cause damage to another component. Other than the obvious risk of damage (shearing the bolt and/or damaging a part of the bar), would this method pose any more of a risk to another part of the car/engine than the cranking over method?