How to open engine center bolt

Center bolt, crankshaft bolt, or everything you named it. It's the hardest bolt on the engine. Always painful when we want to open it. On my Suzuki G16A Workshop Book, it's have Tightening Torque around 130Nm which mean very hard to open.When your engine still mounted on engine bay, it's not very difficult to open. Just follow your manual. But if your engine is not on engine bay, you will cry for help. What if you want to open it by yourself ? without help from your friend ?. I found the answer easily. Just mount your engine to your wall with bolt. and push your wrench hard..Its the cheapest engine stand. Bolt is 10mm dynabolt. Use transmision bolt hole for pattern.