Ford 1997 Aerostar Workshop Manual page 182

1997 Aerostar/Ranger
Intake
Exhaust
Gasket Surface Flatness
Valve Stem to Guide Clearance
Intake
Exhaust
Valve Head Diameter
Intake
Exhaust
Valve Face Runout Limit
Valve Face Angle
Valve Stem Diameter (Std.)
Intake
Exhaust
Oversize
Intake
Exhaust
Oversize
Intake
Exhaust
Valve Springs
Compression Pressure
(N [ Lbf.] @ Spec. Length)
Valve open to maximum lift
Valve closed
Free Length (Approximate)
Installed Spring Height
Service Limit
Rocker Arm
Ratio
Valve Tappet, Hydraulic
Diameter (Std.)
Clearance to Bore
Service Limit
Hydraulic Leak-Down Rate
file://C:\TSO\tsocache\VDTOM_5368\SVK~us~en~file=SVK31B50.HTM~gen~ref.HTM
47.072mm (1.8532 In.) Min.
39.730mm (1.5645 In.) Max.
0.08mm (0.003 In.)
over 152.0mm
(6.00 In.)
0.026-0.068mm
(.001-0.0027 In.)
0.038-0.081mm
(0.0015-0.0032 In.)
40.0mm (1.57 In.)
33.0mm (1.30 In.)
0.05mm (0.002 In.)
44°
7.960-7.940mm (0.3134- 0.3126 In.)
7.948-7.928mm (0.3129- 0.3121 In.)
8.340-8.320mm (0.3283- 0.3276 In.)
8.328-8.308mm (0.3279- 0.3271 In.)
8.720-8.700mm (0.3433- 0.3425 In.)
8.708-8.688mm (0.3428- 0.3420 In.)
800.6N (180 Lbs.)
29.5mm (1.16 In.)
288.1N (65 Lbs.)
40.1mm (1.58 In.)
46.7mm (1.84 In.)
44.17-41.98mm
(1.736-1.650 In.)
10% Force Loss @
Specified Height
1.61
22.206mm (0.874 In.)
0.018-0.069mm
(0.0007-0.0027 In.)
0.127mm (0.005 In.)
(a)
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Page 2 of 10
2011-04-27