Notice when it starts, the ticking is not there but comes on about 3 seconds after it starts. When the engine is reved the ticking goes away. Notice in the video that the center section of the SC pulley looks off balance. The noise has become a bit louder in the last 10 miles. I have not driven the car in a month but around the block 2 miles. Any ideas.

Turn your volume up a bit.

Engine Ticking Video <-----CLICK HERE

 

Yes it does look off balance. I'll have to go look at mine and compare. Have you been able to take the water hose method that woody is famous for and centralize the noise. At least close to an area? That is quite loud and louder than normal for our noisy cars. I suggest take off the belt completely and start the car for a few seconds to see if it's in the motor, acc, or sc.

 

I have a stethoscope and sounds like it's under the drivers side valve cover.

 

Valve train noises that change after reving may be the hydraulic pressure differences in oil pressure.

If the pressure falls and the lifter has a DIFFERENT pressure it will make a different noise. TO test this you only need to allow the oil to be cold versus warm to see if there is a difference in your sounds, tick.....

To experiment doing the tests warm versus cold can make changes in clearence due to expansion and oil viscosity changes.

Enjoy, Woody

 

Cold start and 8 minute warm up, the noise is the same.

 

I do not think that pully should be moving like that. A loose pully? A bearing shot? If it is, it sounds expensive

 

Sounds like a rocker arm or tappet on one of the valves. If it can be repaired without removing the cylinder head, it shouldn't be too bad.

A shop would take the valve cover off, protect the engine bay from oil splashing all over, and start the engine to identify exactly which valve it is.

If it's a broken valve spring, bent valve, etc, then the head probably has to come off for the fix. That would not be good.