Valve Tick? 3.4l

When accelerating at higher speeds/ higher rpms the engine makes a ticking noise that sounds like the valves. Im not sure though. It doesnt do it any other time.

 

Look behind you, it just blew up and burned.

 

Thanks for the help

 

Can you add some more information at least....?

Could be a number of things based on your "Makes a noise some of the time" explanation.

 

Mine was doing that, I realized I had an exhaust flange leak. I replaced the gasket and tightened it up and realized I had another one up stream. I haven’t got around to that one as of yet.

 

You know what I think I have an exhaust flange leak too. I have a a gasket just need to figure if I need to drill those bolts out or something they’re all rusted out.

 

Sounds like valve lash. Measured cold, exhaust should be .25-.35mm, intakes .15-.25mm. Larger gap means more lash, which is the cam lobe hitting the shim/valve lifter, and giving you a tick sound.
I just adjusted my valve clearance after an engine overhaul, had 2 valves overspec and noticable "ticktick" with rpm. I think book says check clearances every 30k, can't remember.

 

Cool, thank you