Disassembly and Assembly: Inspection

WARNING: This page is about a different car, the 2004 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

If pulley is cracked or deformed, replace it.
If an oil leak is found around pulley shaft oil seal, replace the seal.
If serration on pulley or pulley shaft is deformed or worn, replace it.