Weird Noise On Idle

[antonio69er]

Hi there, Just want some opinions on a noise that my R33 Gtst makes when its idling. Its a hard noise to describe but it sounds a bit like "woooooooo" noise or a hollow sounding noise. Im thinking it maybe the belts making the noise as I had them changed not long ago but im not sure and wonder if anyone else has this same noise. It only makes this noise when its idling, when your driving the noise goes away its only if you come to a stop at the lights etc that it makes this noise again. Any help would be appreciated.

Thanks

[(B1) MR_fanny]

it could be your thrust bearing?

[Rancher]

If you just replaced your timing belt, its that. Its too tight. Mine has been dowing it for ages. I love the sound it makes lol. I would losen it a tad though, it can put stress on the cam shafts and it can break them off. Ive heard of it happening to a few people.

[GreddyGo]

^^ I agree, but what I have seen on a lot of Nissan engines with a timing belt setup is that if it is to tight it can snap the little stud that holds your tensioner pully on.

Ive seen a lot of heads been destroyed from this!

-Josh

[(B1) MR_fanny]

actually ive just replaced my belts too and have noticed this sound a week ago. sounds like its comming from the timing belt too.

[antonio69er]

Thanks for all your comments. Its not my timing belt as Ive used the screwdriver test and the noise is coming from the back of the motor near the plenum. I cant pin point exaclty where it is but its in that area