Everyone with cammed cars inside PLEASE!!
Everyone with cammed cars inside PLEASE!! I have been trying to solve a problem with my 02 ws6 m6 for over a week now. Car has full exhaust, slp ram air/ lid combo, 224/.581 cam 112 lsa and only 20k miles. After checking everything under the sun the only thing I can come up with is the pcm. I now hear a slight noise under the hood and am not sure if it has always been there and I now hear it considering I am listening to everything very carefully. If you guys that have cammed cars could put your ear close to the intake and listen for a slight knock that sounds like the sound everyone makes with their tongue from the roof of their mouth and it is exactly in sequence with the lope of the cam(exhaust). I WOULD REALLY APPRECIATE IT!! Atleast I could rule out a possible major problem. Thanks Guys.
If your wondering the extent of the problem or would possible read the post and give some info, the post in under tuning section. Thanks
Or click this link:
https://ls1tech.com/forums/pcm-diagnostics-tuning/608615-major-problems-need-your-help-1-a.html
If your wondering the extent of the problem or would possible read the post and give some info, the post in under tuning section. Thanks
Or click this link:
https://ls1tech.com/forums/pcm-diagnostics-tuning/608615-major-problems-need-your-help-1-a.html
Last edited by TARyan21; Nov 18, 2006 at 06:33 PM.
Don't know the base circle but the pushrod length is 7.400 and the heads are not milled. I know the sewing machine noise that the head puts off but it sounds like this is coming from the center of the top. Not sure if it is on the front of the motor or back because or echo.
Mine has some noise like what you discribed. It sounds like a tapping-knocking noise. I thought that one of my rockers was coming loose and it was bouncing arround inside valve cover. I checked torque on all rockers and they were good. THe only thing i can come up with is that it has something to do with the belt because it goes away after a few min. I could be wrong.
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Originally Posted by The1N_only
when did you first notice the noise
I did not notice mine until after the first day of driving. It has slowly started to last longer before it goes away. It sound like it is coming from the drivers side valve cover or somewhere right in there at the front by the powersteering. I cant figure out what it is
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Joined: Jul 2006
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i dont have a cam in my car but i have the same exact noise. mine only does it when its cold so im hoping its a lifter??? im not tryin to hijack the thread, im just sayin i think it might just be normal
Originally Posted by 00slowredz
i dont have a cam in my car but i have the same exact noise. mine only does it when its cold so im hoping its a lifter??? im not tryin to hijack the thread, im just sayin i think it might just be normal
i assume the cam is the TR224 cam. when i had that cam in my car, the valvetrain was noisier then any other cammed car i've ever heard, when i swapped the cam a few months ago, i found that my noise was coming from the fact that every lobe nose on the cam was "rough" the hardening wasn't right and the nose of every lobe was flaking off for the most part. this in turn chewed up my lifters some. so it had valvetrain noise x100....
as for the "sound that your tongue makes when you smack it off the roof of your mouth" my guess would be the a lifter somewhere. when i swapped my heads and still had my TR224 cam, somewhere in the process a lifter bled down and it made that exact noise. it eventually went away with a few heat cycles though....
now i have a new HUGE cam and some LS7 lifters and all is well
as for the "sound that your tongue makes when you smack it off the roof of your mouth" my guess would be the a lifter somewhere. when i swapped my heads and still had my TR224 cam, somewhere in the process a lifter bled down and it made that exact noise. it eventually went away with a few heat cycles though....
now i have a new HUGE cam and some LS7 lifters and all is well
Originally Posted by The1N_only
Thanks I appreciate your help.
