BRAKE GROUP--R.H. 8K8137 - Caterpillar

Remove Camshaft
START BY:a. remove timing gear coverb. remove valve lifters 1. Remove turbocharger drain tube (1) from the flywheel housing. Remove two studs (2) with tool (C). 2. Turn the engine with tool (B) until the bolts in camshaft rear gear (3) are visible. Remove the four bolts.
Tooling (A) must be used to prevent the loss of timing of the rear balance weight gear and to keep the rear camshaft gear in place when the camshaft is removed.
3. Turn the engine until the "V" marks on the front timing gears are in alignment. Install tooling (A) through the flywheel housing and into gear (3).4. Tighten tooling (A) evenly to free the rear camshaft gear from the camshaft. 5. Remove two bolts (4) and plate (5).
Be careful not to cause damage to the camshaft bearings as the camshaft is removed.
6. Remove the camshaft and gear from the cylinder block. 7. If necessary, remove the camshaft gear with tool (D). Remove the dowel on the taper end of the camshaft with tooling (E).Install Camshaft
Make sure the key for gear (1) is in position on camshaft (2) before gear (1) in installed.1. Heat gear (1) to a maximum temperature of 600°F (315°C). Install gear (1) on camshaft (2).2. Install pin (3) until it is extended 8.76 0.25 mm (.345 .010 in.) from the end of the camshaft. 3. Put clean engine oil on the lobes and journals of camshaft (2) and on the camshaft bearings in the cylinder block. Install the camshaft with the "V" mark on gear (1) in alignment with the "V" mark on gear (5).4. Install plate (4) and the bolts. 5. Loosen bolts (6) of tooling (A) to align pin (3) and gear (7). Install one bolt in the gear to hold it in position. Remove tooling (A).6. Turn the engine with tool (B) until all of bolts (9) are installed. Tighten bolts (9) evenly to a torque of 25 4 N m (20 3 lb.ft.). Tighten the bolts again to a torque of 25 4 N m (18 3 lb.ft.).7. Check the camshaft end play with tool (D). End play must be 0.10 to 0.25 mm (.004 to .010 in.).8. Install two studs (8) with tool (C) until they are extended 25.4 1.5 mm (1.00 .06 in.) from the surface of the flywheel housing.9. Install the oil drain tube for the turbocharger.END BY:a. install valve liftersb. install timing gear cover