K7m Engine(renault sandero)
I tried rotating the crankshaft by hand(for alignment purposes during a timing-belt change) and it does move but it's a bit on the stiff side and I'm worried about the main crank pulley bolt moving independently of the crank shaft.
I was hoping not to have to buy another spark-plug socket because this may turn out to be a one off and my one is too large to fit down the chimney so-to-speak.
If I'm not risking any misalignment due to the stiffness(I'm guessing that has to do with air compression as the cylinder and pistons move up and down), then I'll just leave the spark-plugs for now. This is not about servicing the vehicle.