SERVICE MANUAL
VALVE TRAIN - CAMSHAFT, TAPPETS & PUSH RODS
Section 4
SPECIFICATIONS
DIMENSIONS
VALUES
Camshaft -
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 ...............................................................................................................................0.13 mm (0.005 in)
0.33 mm (0.013 in)
Camshaft Running Clearance .......................................................................................................0.05 mm (0.002 in)
0.17 mm (0.006 in)
Maximum Permissible Camshaft Running Clearance ...................................................................0.20 mm (0.008in)
Bearing I.D. (Installed in Crankcase) ......................................................................................58.026 mm (2.2845 in)
58.115 mm (2.2880 in)
Bearing Journal Diameter ........................................................................................................57.948 mm (2.2814 in)
57.976 mm (2.2825 in)
Service Bushings Furnished to Size ...................................................................................................................... Yes
Thrust Plate Thickness (New) .......................................................................................................6.96 mm (0.274 in)
7.01 mm (0.276 in)
Thrust Location ..............................................................................................................................0.13 mm (0.005 in)
0.33 mm (0.013 in)
CGES-185-3
PRINTED IN UNITED STATES OF AMERICA
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