ebay@cnsautoparts.com Sells 2nd generation of Lash adjusters for $113.86 Full set. I got same issue on my other n/a 3k so I put better oil and change it every 3000 miles + filter. Tiking does goes away about 80% after worms up. Its because 2nd gen. lifter are upgraded to 3mm hole for oil current instead 2mm. Increased opening for better lubrication.