Cylinder Head and Valves: Top Dead Center. How do I locate “top dead center (TDC)” on my B230 engine?
• When the notch/slot in the crank washer is aligned with the vertical mark on the block, the #1 piston is at TDC • When the cam gear’s mark is aligned with the mark on the timing belt back cover (about 11 o’clock), both valves for the #1 cylinder are fully closed, and… • When the intermediate shaft gear’s mark is aligned with the mark on the timing belt back cover (about 3 o’clock), the distributor’s rotor is pointed at the #1 cylinder ignition wire contact in the distributor cap–and that rotor is also aligned with the mark on the distributor’s base.
