In some cases, a rattle from the front of your engine doesn’t essentially necessarily mean the VCT gear is worn out. The timing chain guide around the SR20 and KA24 engines is understood to loosen and rattle, knocking about the valve address given that the timing chain moves beneath it. https://jdmnissansr20turboenginef46258.madmouseblog.com/12461350/detailed-notes-on-jdm-nissan-sr20-turbo-engine-for-sale