Did you do your delivery valve seals too while you had your IM off last week? Could be some minor nailing.

Also check the tensioner pivot arm. It has a metal sleeve that rides on a steel pin. You can drop the belt and run a COLD engine for 30 secs to confirm that.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)