So i Recently purchased a 99 integra. The original owner said that the belt was done at 100km, the car now has 150.. Ive seen a bad belt before and it had white lines, cracks and slightly frayed. Any inputs appreciated.

 

If you got the time and money do it for piece of mind. Otherwise it's not terrible yet. I'd start worrying when you start losing sight of the white part numbers. I also do a valve adjustment every 12,000km so I fully inspect my timing belt for knicks/tears/fraying etc at the same time