MICAH HERRON

iTrader: (3)

Well, A few weeks ago Chris and I did a heads and cam install. Things went very smoothly and no isseues. A week later a TC was installed and still everything was cool. Cruised down to Orlando and had it retuned on the DYNO and everything went well. Well, on my trip back the car starting making this ticking noise and at first I thought it was a valve train issue, but when I pulled off of the interstate and put the car in park, the noise was hard to hear, almost completely disappeared, so I decided to continue home. Well, about 10 miles down the road the noise came back, so I went ahead and stopped in Jacksonville and checked everything out at David's place. The header/collection pipe bolts were loose, so I tightened them down and I removed the valve covers and checked the rocker arms and springs and everything was tight and in good shape. Well, Joe another buddy listened to it when I got into Savannah and recommended checking the header/collection seal (donut shaped ordeal that goes between the two pipes) and I did and they were bad, so I replaced them. Things seemed to be good for a day and then the noise comes back and I checked things out yesterday, found some plugs with loose tips (NGK TR6s) and one plug that was so loose I could turn it with my fingers, so I took car of that and drove it, for 45 minutes things were great! Then it came back. The noise sounds so much like an exhaust leak, but have been told that it could be a lifter. Before pulling off the heads, anyone have any recommendations on further checking things out?

One more thing...the noise doesn't start until the car is warmed up.

Sorry for the length of this and appreciate the help.

Micah

MICAH HERRON

iTrader: (3)

Well, I was out there again, ripping this off of the car and inspecting parts for possible problems and if you have been following my issue (out lined here: http://forums.corvetteforum.com/show...258&forum_id=1 ).

Here are a couple of pictures of my air system tubing valve:

Notice the black residue, this is after I lightly rub my finger on it.



This would sort of explain why I can't hear it at an idle, but when I put load on it. I really wish I knew if this was it. :*****: And I have to wait until the dealership opens tomorrow, because none of the parts stores have it.

PREDATOR-Z

You mean you think this is where the leak is?
If so why do you need a dealership??
What you need is a muffler shop or store to get some exhaust sealant.

MICAH HERRON

iTrader: (3)

I mentioned dealership to get the correct gaskets, but I am going to try some high temp rtv and see if that will work.

Micah

orangeapeel

iTrader: (18)

It will have to be hiiiigggggghhhhh temp. I tried to do the same thing and it lasted all of a week. What you want is a welder to plug it up.

MICAH HERRON

iTrader: (3)

True, so true, I have some high temp stuff, but to be honest, it is almost work the wait to go to the dealership and pick up a couple of OEM replacement gaskets.

orangeapeel

iTrader: (18)

I am assuming that you are looking to keep this on your car for emissions purposes. It looks like you cut the birdhouse portion off of the part that hangs down into the intake.

MICAH HERRON

iTrader: (3)

Nothing has been cut or altered, this is off of a vette, so it may look differenct from the f-body. I think it has been tuned out and I should just rip the entire thing out. This has been something I have been chasing for a week straight now and it does not sound internal, just a very LOUD exhaust leak.

Plus, I have no power loses.

Micah

orangeapeel

iTrader: (18)

I would pull it and get the block off plates.

MICAH HERRON

iTrader: (3)

That may just be what I do...any idea what the torq spec is on a header bolt? I just found a loose one.

Viper

iTrader: (6)

11 ft/lbs.