Right. Seems to make sense that there would be a spec to measure the stretch bolts.
Pulling some info for this thread
http://www.peachparts.com/shopforum/vintage-mercedes-forum/403101-m130-flywheel-bolt-specs.html

I will measure later today and see where they’re at.

__________________
Current fleet
2006 E320 CDI
1992 300D - 5speed manual swapped

former members
1984 300D "Blues Mobile"

1978 300CD "El Toro"