Ford 1L5Z-6250-BA Camshaft

If the face of the cam follower that bears on the valve stem is pitted, the cam follower must be replaced with a new one.

Remove the timing chain cover.

To remove the valve covers and then remove the rocker arm assembly, leaving the pushrods in place.

Clean the bearing surfaces and the camshaft journals with lacquer thinner or acetone.Carefully lay the camshaft(s) in place in the cylinder head. Don't install the rocker arms or lash adjusters and don't use any lubrication.Lay a strip of Plastigage on each journal.Install the camshaft caps.Tighten the caps, a little at a time, to the torque. Note: Don't turn the camshaft while the Plastigage is in place.Remove the bolts and detach the caps.Compare the width of the crushed Plastigage (at its widest point) to the scale on the Plastigage envelope.If the clearance is greater than specified, and the diameter of any journal is less than specified, replace the camshaft. If the journal diameters are within specifications but the oil clearance is too great, the cylinder head is worn and must be replaced.