buzzing engine noise. Help!

[heiwaz]

I started the motor without the belt, but the noise still go on.

[extanker]

try unscrewing oil fill cap while engine is making noise

[heiwaz]

Why should I try this? if I remove the oil fill cap, the noise dissapear and why?

Unfortunately at the moment is impossible to try this, because I have doing the IMS upgrade, and the gear box and clutch is out of the engine. But I want to take advantage of this dissasembly to give a solution to this noise.

[extanker]

some of te sounds people report from the AOS going bad are ...well a little odd

[heiwaz]

so, if the problem came from de AOS when I try to unscrew oil fill cap, what happend with it? it's hard to remove or what? thanks.

[extanker]

have you talked this noise over with the people that are working on your motor ?

[heiwaz]

No, I'm doing by myself. I've got mechanical title

I'will check the AOS.