Ford Aerostar 1997 Workshop Manual page 200

1997 Aerostar/Ranger
Valve Face Runout Limit
Valve Face Angle
Valve Stem Diameter (Std.)
Intake
Exhaust
Valve Stem Diameter (0.008 Oversize)
Intake
Exhaust
Valve Stem Diameter (0.016 Oversize)
Intake
Exhaust
Valve Springs
Compression Pressure
(Lb. @ Spec. Length)
Free Length (Approximate)
Assembled Height
Service Limit
Out-Of-Square
Rocker Arm
Shaft Diameter
Bore Diameter
Ratio
Push Rod Runout (T.I.R. Max.)
Valve Roller Tappet
Diameter (Std.)
Clearance to Bore
Service Limit
a
0.003 in any 6 inches — 0.006 overall.
b
10% pressure loss @ specified length.
Camshaft
Item
Lobe Lift
Allowable Lobe Lift Loss
Theoretical Valve Lift @ Zero Lash
Intake
Exhaust
End Play
Thrust Plate Thickness
file://C:\TSO\tsocache\VDTOM_5368\SVK~us~en~file=SVK31C52.HTM~gen~ref.HTM
0.002 Max.
44°
0.3159-0.3167
0.3149-0.3156
0.3239-0.3245
0.3228-0.3235
0.3318-0.3324
0.3307-0.3314
60.0-68.0 @ 1.585
138.0- 149.0 @ 1.222
1.91
1-37/64-1-39/64
b
5/64 (0.078)
0.7799-0.7811
0.7830-0.7842
1.46:1
0.020
0.8742-0.8755
0.0005-0.0022
0.005
Specification
0.005
0.4024
0.4024
0.065-0.165mm
(0.0025-0.0064 inch)
0.158-0.159
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2011-04-27