Roller Follower Inspection

WARNING: This page is about a different car, the 2005 Mercury Sable and 2005 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the roller for flat spots or scoring. If any damage is found, inspect the camshaft lobes and valve tappet for damage.
Push rod engines

Fig 1: Inspecting Roller Follower
Courtesy of FORD MOTOR CO.

OHC engines

Fig 2: Inspecting Roller Follower For Flat Spots/Scoring

Courtesy of FORD MOTOR CO.