SERVICE MANUALVALVE TRAIN - CAMSHAFT, TAPPETS & PUSH RODSSection 4SPECIFICATIONSDIMENSIONSVALUESCamshaft -Cam Lobe Lift (Total):Intake -D-312 (SN 2505 and Above) .............................................................................................6.759 mm (0.2661 in)D-312 (Below SN 2505) and D and DT-360 ........................................................................6.97 mm (0.2744 in)All 400 Series with Camshaft (IH P/N 691 488 C1 or 1 802 337 C1)[With Revised Intake Ramp] ......................................................................................7.455 mm (0.2935 in)Exhaust -All 300 Series .....................................................................................................................7.125 mm (0.2805 in)All 400 Series......................................................................................................................7.384 mm (0.2907 in)Maximum Permissible Cam Lobe Wear ........................................................................................0.51 mm (0.020 in)End Clearance ...............................................................................................................................0.13mm(0.005in)0.33 mm (0.013 in)Camshaft Running Clearance .......................................................................................................0.05mm(0.002in)0.17 mm (0.006 in)Maximum Permissible Camshaft Running Clearance ...................................................................0.20 mm (0.008in)Bearing I.D. (Installed in Crankcase) ......................................................................................58.026mm(2.2845in)58.115 mm (2.2880 in)Bearing Journal Diameter ........................................................................................................57.948mm(2.2814in)57.976 mm (2.2825 in)Service Bushings Furnished to Size ...................................................................................................................... YesThrust Plate Thickness (New) .......................................................................................................6.96mm(0.274in)7.01 mm (0.276 in)Thrust Location ..............................................................................................................................0.13mm(0.005in)0.33 mm (0.013 in)CGES-185-3PRINTED IN UNITED STATES OF AMERICAPage 9
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