Looking for advice. I have a 99 540i with 6-speed manual. I had the UUC v12 flywheel/clutch put on many years back. I'm now well into tear-down to replace the timing chain/guides. However, at TDC, the UUC flywheel has no pin hole - I can't use the locking pin to hold the flywheel and crankshaft at TDC. Is there a way to do timing correctly without using the locking pin?