Sorry to be the bearer of bad news:
Ref AD 97-26-17:
http://rgl.faa.gov/Regulatory_and_Gu...B?OpenDocument
TL,DR: At the next engine overhaul, or whenever the crankshaft is next removed from the engine... ...remove the crankshaft from service and replace with a serviceable crankshaft manufactured using the VAR process.
Can you still run your engine on condition? Yes. Absolutely. BUT... you gotta replace the crank on the next overhaul, thats non-negotiable.
Leighton.