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Home >> Ford >> 2002 >> Excursion 2WD V8-7.3L DSL Turbo VIN F >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Block Assembly >> System Specifications >> General >> Rocker Arm Shaft, Push Rods and Valve Tappets
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Rocker Arm Shaft, Push Rods and Valve Tappets

Type Hydraulic Roller Follower
Push Rod Runout TIR Maximum 0.02 in
Valve Tappet or Lifter Standard Diameter 0.9209-0.9217 in
Clearance to Bore 0.0011-0.0034 in
Service Limit-0.005
Hydraulic Lifter Leak-Down rate 18-90 sec for 0.125 in. Travel
Time required for plunger to move 0.125 in under load of 50 lbs. with test fluid at room temperature.
Collapsed Tappet Gap (Clearance) Max. 0.185 in
Measured at valve tip to rocker arm.
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