RING-BACKUP 2434567 - Caterpillar

Illustration 1 g01391293
Illustration 2 g01391300
(1) The pin extends from the rear left hand camshaft by the following distance. ... 12.0 0.5 mm (0.47 0.02 inch) (A) Thickness of a new washer ... 8.50 0.05 mm (0.335 0.002 inch)Thickness of the groove in a new camshaft ... 8.75 0.05 mm (0.344 0.002 inch)End play for new camshafts ... 0.15 to 0.35 mm (0.006 to 0.014 inch) (B) Diameter of surface (journals) for new camshaft bearings ... 85.88 0.02 mm (3.381 0.001 inch)Bore in bearings for camshafts after assembly ... 86.00 0.06 mm (3.386 0.002 inch) (2) The dowel extends from the end of the rear right hand camshaft and the front left hand camshaft by the following value. ... 22.0 0.5 mm (0.87 0.02 inch) (3) Clean the threads of the bolts and the contact surfaces of the parts thoroughly. Tighten the bolts to the following torque. ... 55 7 N m (41 5 lb ft) (D) Camshaft lobe heightIn order to determine the height, use the procedure that follows:
Measure camshaft lobe height (D) .
Measure base circle (E) .
Subtract the base circle (Step 2) from the lobe height (Step 1). The difference is the actual lobe lift.
Specified camshaft lobe lift (C) Inlet lobe ... 9.201 mm (0.3622 inch)Exhaust lobe ... 8.699 mm (0.3425 inch)