Blown head gasket/ Air being pushed thru intake Mitsubishi excavator

I have a Mitsubishi MS 120-8 Excavator it has a 6D14 mitsubishi 6 cylinder engine. It the same excavator as an early Cat 120. It blew a head gasket when it did so it started pushing out through the intake? I changed the gasket but it continues to push air out the intake. Any ideas on this? Any one see this before?


Thanks

Blown head gasket/ Air being pushed thru intake Mitsubishi excavator