[s-cars] Flywheel TDC mark

[radek at uniserve.com]

Hello;

Is there a difference between early and late models urs4 and urs6?  We  
are doing a timing belt job on my son's 1996 and all we can find on  
the flywheel are two small square ridges, one a few degrees Before  
TDC, the other more or less at TDC.  Meanwhile Bentley says it should  
be a notch marking the TDC, consistent with my experience with other  
I-5s.  Any clues?  TIA.

Radek.