Got a 04 astra cabby with a z22se in and the chain doesnt make a noise at startup nor does it when its idling, but when revving it makes a slight rattle noise is this normal and just the sound of the chain or should you not hear it at all, like i say it never rattles when cold even revved up but just after 10mins of running, im gonna do an oil change tomorrow so see if that helps
Thanks
Mark