Help with ticking noise

[Mart]

Trying to figure out what this damn ticking noise is, Lifter, Injector, rocker I'm not sure.

I just finnished redoing the intake for a coolant and oil leak, while I was at it I set the valve lash and now I have a loud ticking noise that speeds up and slows with engine speed.

I also replaced all the Orings on the injectors.

What's the best way to determine where the noise is from.

Thanks
Mart

 

[taegdh]

Use a stethescope!!!

Touch it to each area you think the ticking is coming from.

They aren't that expensive, and can be use on other things arround the house.

 

[Mart]

I have one, I will have to give that a try, I just thought somebody might have some idea of how to tell what the different problems might sound like.

It's a real pain, on one hand I bought this car to play with and work on but on the other i just seems to be one thing after another. I guess it's just the age.

I just adjusted the TPS and now I am getting an SES light, I have to check to see what the code is but there was no SES when the voltage was low.WIERD.

Mart

 

[Bob Yates]

Being An Old Chevy Tech I Would Have To Say It Is A Rocker Arm That Got Misadjusted Or You Could Have Missed It. It's Hard To Know Without Hearing It In Person. But The Stethescope Is The Way To Go.....good Luck........ Bob Yates

 

[Mart]

OK, I'm not sure if this will help at all but I made a digital recording that you can hear the ticking noise.

http://members.rogers.com/c4vette/audio/wierdsound.wav

 

[WhalePirot]

Sounds more like a lifter than an injector to me, but recordings and playback media differ a fair bit. As you messed with them, my suspicion is bolstered.

You know how to pull the ECM codes? U have a manual for proper adjustment of the TPS, the valve lash, etc.?

You know you can reset the codes and try again? Any recurrent codes will recur while transients will not.

 

[Mart]

I'm starting to think that it just might be a lifter too. I just cannot figure out how to tell for sure.

There are no codes and I just reset the min idle, then the TPS, then checked the timing, and the Fuel presure.

Any sugestions for lifters.

Mart

 

[WhalePirot]

If you can find the noisy one, tighten it, with the engine idling, until the noise stops, then 1/4 to 1/2 turn more (assuming they are hydraulic lifters). Special, open valve covers, clips or even cardboard shields can reduce the oil mess.

The others adjust the same, while taking more time, but it sounds like a solitary one.

 

[Mart]

I have an old set of valve covers, really basic chrome stamped steel covers. I was thinking of cutting the top out of one and using it to adjust the valves.

Any thoughts or sugestions on this.

And thanks alot WhalePirot
Mart

 

[WhalePirot]

I have an old set of valve covers

If they fit and aren't collectible, it sounds like a plan to me!

Enjoyed the chat and hope this solves your noise.

SURF's UP!

 

[chevyaddict]

I have an old set of valve covers, really basic chrome stamped steel covers. I was thinking of cutting the top out of one and using it to adjust the valves.Mart

This is exactly what I have done for such occasions! Just make sure you smooth out the cover where you cut it. Found out the hard way that those edges are sharp! Lifter knocks are quite common and it doesn't take much with the hydrolic lifters to tick.
Dawn