How do I move my engine to TDC?
How do I move my engine to TDC? You can remove the #1 spark plug and put a straw down the hole such that it's resting on the top of the piston. As you turn the crank the straw will move up and down. When it's at its apex just before it begins to fall the engine is at TDC. Where can I find the TDC mark on my car? If you have trouble locating the TDC mark from above, there is a 5 mm wide groove in the flywheel which can be used to locate TDC as well. It...