Lifter / Lash Adjuster, Valve

Standard Diameter 0.3422-0.8427 inch
Clearance-to-Bore 0.0007-0.0027 inch
Service Limit 0.005 inch (Max)
Allowable Collapsed Tappet Gap 0.035-0.055 inch @ Cam
Desired Collapsed Tappet Gap 0.040-0.050 inch @ Cam
Valve Tappet Hydraulic Leakdown Rate:
2-8 seconds to leakdown 3.18 mm (1/8 inch) of travel with 22.68 Kg (50 lb) load leakdown fluid in lash adjuster.