robertotrevino

how do you fix an exhaust leak? It's driving me crazy

robertotrevino

can anyone help? How do you fix it?

LT193

I currently have a bad exaust leak aswell and its driving me nuts to. Go and get some new exaust gaskets. If you have headers get some exaust gaskets for headers for an LT1. MR gasket makes a copper set that im going to get that will gurintee you no leaks (suposodly) but i dont have part numbers, youl have to call autozone or summit.

robertotrevino

I have a basically stock engine, but I like to fix stuff myself, to be honest, I have never tried to fix something like this, is there some sort of guide? or could someone guide me through it plz?

robertotrevino

anyone?

SS RRR

If it hasn't already been mentioned a loose spark plug can also make a very distinct ticking noise.

MyShibbyZ28

The best guide is trial and error i think. But yeah i still have this noise and it's driving me nuts. I took a spethoscope to the engine and found it's coming somewhere from the engine mount, but it isn't that, it's practically brand new and screwed down tight at ever. hmmmmm

robertotrevino

Ok, I tried the screwdriver method and found out a ticking sound comes from here:
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all eight of them, somehow I dont think its the same ticking... I will try and get a video of it, btw, it only sounds when the engine is warm.

MyShibbyZ28

You do know the injectors are suppose to tick right? If they don't that's bad. Mine make a loud ticking noise and so does my neighbors truck. It's because they're opening and closing. That's a good thing if you hear ticking from them. What i'm talking about it a LOUD ticking coming from the passenger side somewhere, sounds like a metal to metal hit.

robertotrevino

yeah, what I was saying is that that's the only ticking I heard when I used the screwdriver. But the other ticking is still heard and it's from the passenger's side. and its LOUD. I'll try and get an audio clip.

blown94

Try the screwdriver/stethoscope on the manifold bolts of the intake. Thats where i heard mine the loudest. Already smoked 2 sets of lifters, sounds like your problem to me. Revin' to 6500+ while bouncing off the rev limiter on a delayed WOT shift turns out to not be the best of things for the lifters (ie. floating valves).

luckyou03

Here are two sound clips of a bad lifter tapping on the cam:

http://www.lt1engine.com/soundlib/40lt1badlifter.mpg
http://www.lt1engine.com/soundlib/41lt1badlifter.mpg

Hope this helps

robertotrevino

Nope, it doesnt sound like that, I'll try and post a clip tomorrow, it sounds more like a grinding sound.

xfreshjiv12x

Man that sounds like my car! wow I thought it was just an exhaust leak. Gotta look into that!

MyShibbyZ28

That definitely is going to be bad. Mine also has that sound. EEP! Looks like that wanted rebuild is coming sooner than I thought.