Mitsubishi Repair Problems? Ask a Mechanic for Answers ASAP
Hello I will help you with your question,
This engine has a timing chain not a timing belt so yes the likely hood that there is internal damage is very high. Pull the head and take a look, run a bore scope down the spark plug holes and look for piston to valve contact and you can always remove the cams and run a leak down test. Any of those will tell you if it is worth putting a chain on to check compression.
Sorry for the bad news, please let me know what further questions you have