Ford Aerostar 1997 Workshop Manual page 13

1997 Aerostar/Ranger
Section 03-01C: Engine, 4.0L V-6
IN-VEHICLE SERVICE
Valve Tappet, Hydraulic
NOTE: Before removing a valve tappet (6500) for noisy operation, make sure the noise is not caused
by improper valve-to-rocker arm clearance or by worn rocker arms (6564) or push rods (6565). Refer
to Section 03-00 for diagnosis and testing procedures.
Removal
1. Remove cylinder head (6049) assembly as outlined in this section.
2. Remove the valve tappets. Note the location of each valve tappet so each one can be installed in the
original position.
Installation
1. NOTE: Lightly oil all bolt and stud threads before installation, except those specifying special
sealant. Using solvent, clean the intake manifold, cylinder head and valve rocker arm cover
sealing surfaces.
Lubricate each tappet and bore with Engine Assembly Lubricant D9AZ-19579-D or equivalent
meeting Ford specification ESR-M99C80-A or engine oil SAE 50 Service SG ESE-M2C39-F.
2. Install each valve tappet in the bore from which it was removed with the alignment tab in the locating
groove of the bore. If new valve tappets are being installed, check for free fit in the bore.
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1997 Aerostar, Ranger Workshop Manual
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2011-04-27