Need help !! North Alabama

twadd · 10-31-2009, 02:41 PM

I traded for a 02 Ws6 with 25k miles a few weeks back. After driving it about 15 miles I started to hear a knocking sound from the engine. Its a pretty loud sound but it kinda sounds as if it coming from the pass side head. I have no idea what would make that kinda noise in the head. Also the guy I traded with said it had AFR heads, been cammed, ZO6 intake and throttle body, full SLP exhaust, and a NOS that he claims had never been used. Any ideas would be great or if someone was in my area of Gadsden, AL and wouldn't mind looking at it that would help me a ton. Thanks !!

http://s335.photobucket.com/albums/m...t=P1070006.flv VIDEO

homerunhtr21 · 10-31-2009, 03:00 PM

Take the trans am plate off the front left passenger side head to see if they are AFR...They mark their heads on the front. The Z06 intake is just an Ls6 intake, and Im pretty sure the Corvette uses a different kind of tb so it might just be a ported stock throttle body. As for the knock it could be a lot of things. Sorry Im not a little closer to help out a little more.

twadd · 10-31-2009, 03:56 PM

Quote:

Originally Posted by homerunhtr21

Take the trans am plate off the front left passenger side head to see if they are AFR...They mark their heads on the front. The Z06 intake is just an Ls6 intake, and Im pretty sure the Corvette uses a different kind of tb so it might just be a ported stock throttle body. As for the knock it could be a lot of things. Sorry Im not a little closer to help out a little more.

Thanks for your input, I have been meaning to take that plate of the head to look, think I will check it right now. Thanks

twadd · 10-31-2009, 04:23 PM

Ok so I just went and checked the heads, they are 706 heads.

twadd · 11-01-2009, 11:13 AM

Im gonna try to get a video clip on here. Up for the morning.

twadd · 11-01-2009, 12:38 PM

Added video of car running below pics.

Chris06GT · 11-01-2009, 01:58 PM

Holy sh*t....that doesn't sound good at all bro......Maybe some of these guys will come in and help out....Wish I knew what to tell you....

6SSPEED · 11-01-2009, 02:02 PM

Could possibly be a valve slapping the piston

twadd · 11-01-2009, 05:09 PM

Quote:

Originally Posted by 6SSPEED

Could possibly be a valve slapping the piston

It does sound as if its coming from the passenger side head ?

therobman · 11-01-2009, 06:08 PM

the valve isint hitting the piston, its hard to tell could be rod knock, bent pushrod, bad lifter does it go away or get quieter when it warms up hows ur oil pressure id pull the valve covers and inspect could just be a bad pushrod or a rocker arm could have puked its bearings go take a look

twadd · 11-01-2009, 06:16 PM

Quote:

Originally Posted by therobman

the valve isint hitting the piston, its hard to tell could be rod knock, bent pushrod, bad lifter does it go away or get quieter when it warms up hows ur oil pressure id pull the valve covers and inspect could just be a bad pushrod or a rocker arm could have puked its bearings go take a look

Oil pressure is about 45-50 cold then about 25-30 warm, doesn't go away as it gets warm. I was just riding down the highway when it started to make this sound.

therobman · 11-01-2009, 07:22 PM

thats find oil press then its either a bent pushrod or one of the rocker arms spit the bearings see which side its on and pull the valve cover and and the 8 rockers and pushrods and inspect them ill bet youll find something out of the ordinary

twadd · 11-01-2009, 07:33 PM

Quote:

Originally Posted by therobman

thats find oil press then its either a bent pushrod or one of the rocker arms spit the bearings see which side its on and pull the valve cover and and the 8 rockers and pushrods and inspect them ill bet youll find something out of the ordinary

Its on the passenger side for sure.

therobman · 11-01-2009, 08:25 PM

so pull the valve cover really easy and the 8 rockers and pushrods

twadd · 11-01-2009, 08:38 PM

Quote:

Originally Posted by therobman

so pull the valve cover really easy and the 8 rockers and pushrods

Thats my plan in the next few days. Thanks !

OMGWTFBODY · 11-01-2009, 09:51 PM

Good luck.

twadd · 11-01-2009, 10:05 PM

Quote:

Originally Posted by OMGWTFBODY

Good luck.

Thanks !!

Damian · 11-01-2009, 11:12 PM

Isn't this car on craigslist?

twadd · 11-02-2009, 04:48 AM

Quote:

Originally Posted by Damian

Isn't this car on craigslist?

Yes, Im trying to sell to buy a diesel truck to pull my camper, but if it was fixed it would be alot easier sale. Thanks

hmorris7000 · 11-02-2009, 09:13 AM

if it is a 02 it came with a ls6/z06 intake also if there z06 heads you should see a 243 casting number also NOS installed but never used I hope you knew damn well that guy was lying seem like he sold you a lemon