At times, a rattle through the front of your engine doesn’t always mean the VCT equipment is worn out. The timing chain guidebook to the SR20 and KA24 engines is thought to loosen and rattle, knocking around the valve address since the timing chain moves beneath it. Rust is unavoidable https://jdm-nissan-sr20-turbo-eng26706.fireblogz.com/63368337/not-known-details-about-jdm-nissan-sr20-turbo-engine-for-sale