Ok first off. No smart ass remarks. I know what im doing. I will give you a run down first so sorry if i write a novel, im trying to avoid all unnessisary questions and look for answers.

http://www.desotodrift.com/videos/MVI_0428.AVI

Description of vehicle concern:
very loud clackity tapping noise from head

Diagnostics performed:
checked oil pressure, visual inspection inside valve cover.

Parts replaced:
Lifters, timing chain tensioner

im trying to write this up as organized as i can but i might skip around alot. Watch the video and listen to the noise.
Motor has a brand new oil pump, i replaced the lifters with a known good set that i pumped out and bled in a tub of oil for a full 24hours. I also replaced the chain tensioner. It is a Apexi head gasket. Oil pressure is 80psi at cold ilde and 40psi at hot idle. I have run out of ideas on what this could be or what is causing the sound. I know SARD injectors are loud but they cant be that loud. It is the exact same build as before when the motor ran and drove perfect. Nothing in the had has changed, or moved or anything. everything was marked and placed in its proper location, all factory torque specs were fallowed. Im just trying to get some ideas on wtf this could be before i go pulling the head off. YES oil is getting to the head, I can watch oil piss out of the drip rails. I even ran the motor with the valve cover off (yes its a bad idea i know) same noise is still there and everything is getting oil.


UPDATE:
After the car sat for a few weeks went back and restarted it to play with it some more, noise has calmed down alot and seems to be directly in the front and not all over the head anymore. As far as chain slack goes between the two cams its taught but there is some lateral play(against the rollers not up and down slack) that i dont think is normal but i could be wrong, also, down at the bottom of the driver side (guide side) is where the slack is below the cam, but thats where the crank pulls on the chain so it should be taught correct? with a stethiscope was able to pin point the noise to the tenisoner, but have already replaced the tensioner twice. Is there some portion of the equation i am missing here? or should i toss a brand new chain in it and let it eat?

 

spring on oil pressure relief valve in oil pump is getting too soft and needs some shims

 

That thing sounds like my old ka... I would guess lifters, but you seem to have that base covered... Do sr's have timing chain guides that can get loose over time and contact the chain like ka's?

 

Top guide is removed. lower guides are plastic, and i know they are tight. noise is definately in head. I would agree with oil pressure spring but oil pressure gauge says otherwise

 

how old is the hydraulic chain tensioner chris? are there wear marks on the top of the valve cover where the chain would be hitting if there were enough slack?

it also sounds like your rockers are imbalanced.

 

the one that was in the motor when i originally put it together was brand new. the one i just stuck in last night is god know how old, but zero difference between the two. Imbalanced rockers? i guess im about to get schooled. but like i said nothing has changed about the head from the time it ran perfect with no noise untill now. As far as wear marks on the valve cover, I dont see any.

 

you could also have a situation with an oil galley being blocked in the head itself, but that's unlikely. i've had oil make it through the oiling rails but still not make it all the way to the rockers.

just throw solids in it and be done with it man.

 

lol im contimplating the solids, i would go that route if i could be 100% assured nothing else would be affected by this oiling issue. I was thinking the same thing about the oil galley being blocked or clogged, I was gonna pull the head and have everything checked and shit I just wanted to see if there was somthing else i was missing in the picture.

 

it's hard to say duderz. a loose timing chain can make an assload of noise also... you didn't by any chance somehow prevent the tensioner from releasing, did you? That little hook isn't still caught on, is it?

 

nope, its out all the way. as you can see in the video i only have two nuts holding the valve cover on so i can keep peeking in there and see whats going on. chain feels like it has little bit of slack, but doesnt seem like enough to sound like the apocolypse