Yo Buck, does it correspond to engine speed, or vehicle speed? Engine speed would indicate a valvetrain issue, or a header leak - at the head. Did you feel it affecting the way the car drove? Could be an arcing plug wire, too.
No. It does not correspond with the speed of the Engine. It corresponds to just the Revv of the engine. The higher the RPM, the more it Clicks.meangreen92 said:Yo Buck, does it correspond to engine speed, or vehicle speed? Engine speed would indicate a valvetrain issue, or a header leak - at the head. Did you feel it affecting the way the car drove? Could be an arcing plug wire, too.
That is actually a very useful bit of information. Thanks for that, I'll be sure to remember it.Bogart said:Glad to hear you figured it out.
I just thought I'd mention a handy way to isolate valvetrain noise from engine noise. Since the camshaft turns at half the speed of the crankshaft, a valvetrain noise shouldn't be too hard to pick out.
Take a timing light and hook it up to any plug wire, and fire it while listening to the noise....
If you hear the noise once for each flash of the light, then it's probably not valvetrain-related. Think exhaust leak, injector noise, piston slap, etc.
If instead you hear the noise only once for every 2 light flashes, then it likely is something in the valvetrain. Think collapsed lifter, loose rocker, bent pushrod, etc.