valve specs and #6cyl. rocker arm keeps backing out bolt
adjust valve lash on 2000 Jeep Wrangler
There are no Valve lash adjustments on either 2.5L or 4.0L engines. Remove the rocker arms, clean and inspect the threads in the head casting, Use NEW FACTORY bolts. Install with Blue or Red LOCTITE and torque to spec. Tighten the capscrews to 28 N·m (21 ft. lbs.) torque.