Can you attach a video/audio clip to your post?
Will see what I can do.
To answer the other Questions, the engine runs smooth, no shakes or vibrations & no oil leaks anywhere. It is good on fuel & oil too.The only other parts we replaced were the aircon & power steer belts, the gearbox anti-roll mount, & we only did those because we were clutching at straws (process of elimination).
There is one thing that seems strange though, I have had a Ryco Catch can on it for 7 months (about 15,000 - 20,00 k's) & it has not collected one drop of oil or water. The filter inside the CC is moist with oil though.
The oil pressure is good & there are no blockages in the CC hoses. A mate has the same CC fitted to his mn & he is always draining crap out of his.
This is probably purely coincidental, but I first noticed the noise straight after I replaced the inter-cooler & put in aluminum pipes from Forefront Industries. We even checked them for interference & tightness too, but that was unnecessary because the noise is in the motor.