Hey I got a LB9 and I put on headers well I finally finished the exhaust and now that its quite I got a ticking sound coming from drivers side of engine...it sounds like an exhaust leak, but its not. I listened closer and it has a knock with the tick too. I took off my rocker arm covers and tpi runners and didn’t see anything out of the ordinary. Any one got any ideas???????

 

It could be that you have a loose rocker arm or a noisy lifter... set the valve lash with the engine running and see if that helps.

 

If your car is knocking, put a sign in the engine bay that says "please use doorbell". Should quit.



:hail: IROC-Z

 

set your valve lash , and honestly , check the header gaskets again . also , check your plug wires if its "ticking" one of your wires could be arking against something

 

what do you mean by " set the valve slash"??????

 

Tightening the nuts on the rocker arms to a certain spec so they don't rattle. There's two ways of doing it: one with the engine off, and one with the engine running. The latter is easier and quicker, but messier as well.

 

Hey I took my rocker covers off and looked and wiggled the rockers but none seemed loose... Still adjust them?? What torque spec does anyone know?

 

Rocky383 your are such a liar, i put up that sign and it didnt quit knockin. Any other ideas??

 

FoREEL...do you have an oil pressure guage? What's your pressure at while idling hot? Although you can have a bad main without losing much pressure you will see a difference from how it is slightly.

Start by pulling i wire at a time from the cap & see if the KNOCK goes away. Put it back if it doesn't. Do this for each cylinder. If it stops, you may have spun a rod bearing.

Make sure it IS A KNOCK though. a tick is VERY different. Knock sound like a faint (or loud) It's like a hollow sound. Tick/click is exactly how it's specified!

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