Quoting dmj:
I did the third gen lifters on mine and it is still noisy, I have learned to live with it as the car runs fine.
While logging various cars, I've found that lifter noise will occaisionally be picked up by the knock sensor and reported to the ecu.
The ecu will then turn the timing down considerably.
Quote:
Ya, I got 3rd gen and the tick came back. Not as bad as it used to be, but I give up.
Is your oil pan in good shape?
An oil pan that's been smacked can smash the pan up against the pickup, causing some variances in oil flow to the pump under different load/g forces.
This can cause one of the other causes of lifter noise, which is air getting entrained in the oil.
A bent pan bottom can also put the pan bottom at an angle to the pick-up. This can also cause cavitation, or a vortex to form under high g's/low oil levels that will let the pump swallow some air.
Since the air is compressible, it'll give you some intermittent tick when it gets up to the lifters.
If it's bent, straightening out the bottom of the pan so it has the correct clearance to the pickup should be added to the list of things to do the next time you have the car down for maintainance.
While you have it apart, inspect the gasket on the oil pump pick up tube to the front cover, as you might be drawing some air in there as well.