diagnose this noise

[richie]

can any 1 give me a hand wit this?im trying find out what this noise is its hard diagnose where its coming from it sounds like the right side of the engine at the front but any info would be greatly appreciated. i put it up on youtube so ya could hear it. ill describe it ya cant hear it when the car is idling but when ya give it a rev its easy hear. it doesnt seem to affect the performance
thanks in advnce
http://www.youtube.com/watch?v=jLKl48d084k

[Dunnedriftin]

dont know much about SR20's..

does it only happen when cold?

my guess it is VVT, they do give trouble / rattle in these..

[richie]

it came into it when i was driving it today and is in it since.its not there just when ya start it or that its there all the time when ya rev it. i took off the rocker cover i taught it mite have been a broke rocker but it isnt that. the timing chain felt a bit loose maybe thats the way they are im not sure but it could have something to do wit it.

[way2fastforu]

na thats not vvt sure its non vvt sr in the vid....how much slack roughly was in the timin chain??

[richie]

ya could lift it up and down at the top between the cams it wasnt tight there. but it seemed good and tight at each side of the cogs on the cams. its just like slack between the cams. ya could move it up and down about ten millimetres roughly. how do i no if its vvt or not

[way2fastforu]

its not vvt cos there would be a big bulge stickin out of the front left side of the rocker cover to accomadate the bigger cam sprocket thats on vvt engines...i seen ur rocker cover in the vid its not vvt engine...bout 10mm or so slack between the cams is normal enuf if u turn over the engine by turnin the crank it'll tension then go loose etc etc...is the chain guide that sits over the 2 cams missin or anythin??

[richie]

does that sit over the chain between the 2 cams. thats there if it is it anyway.

[way2fastforu]

ya thats the thing im on bout...u sure none of the rocker arms are broken???or nothins come looks an got stuck??

[richie]

no everything seems grand up on top. all the rockers are grand cams are grand. it has me totally confused. does the chain slide through the chain guide or turn under it

[way2fastforu]

it slides under the top guide to stop it jumpin off the cams...thats a strange one...u 100% nothins broken or loose under the cover???or is ur ps fluid low??ur ps pump could be makin noise if it is...maybe big ends too??