new harmonic balancer, no start?

1999 NISSAN SENTRA
200,000 MILES • 1.6L • 4 CYL • 2WD • MANUAL
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KPOCALYPSE
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Hello, I have recently changed my harmonic balancer, along with the idler pulley and both serpentine belts. My vehicle is timing chain and i did not remove anything for that area. My harmonic balancer broke after 22 years. It sat for 3 weeks before i could get to it. Today 7/31/2022, i replaced it and now with won't start. It turns as if it wants to but, no start. What could it be?
Jul 31, 2022 at 4:30 PM
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STRAILER
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It could have jumped time when the job was being done, but to be sure let's remove two spark plugs and do a compression test, which will tell us what's going on. These guides can help us find out what's wrong:

https://www.2carpros.com/articles/how-to-test-engine-compression

and

https://www.2carpros.com/articles/car-not-running-advanced

Can you please shoot a quick video with your phone so I can hear the engine crank over? That way I can tell for sure what's going on. You can upload it here with your response.
Aug 1, 2022 at 11:08 AM