• For locking flywheel in TDC position on BMW N51, N52, N52K, N53, N54.
• Turns crankshaft to TDC position while central bolt moves.
• Put A1188-3 into calibrate hole (arrow ahead) and fixed crankshaft.
• Attention:
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- There is a big hole make use of TDC position nearby calibrate hole.
- When A1188-3 stayed in calibrate hole and locked flywheel, it is impossible to move engine through central bolt.