SEAL-D-RING 1656692 - Caterpillar

Remove Front Timing Gears And Plate (Earlier)
start by:a) remove front timing gear cover1. On industrial engines only, drain the cooling system.2. Turn the crankshaft clockwise (as seen from the front of the engine) to top dead center compression stroke No. 1 piston. See LOCATING TOP DEAD CENTER COMPRESSION POSITION FOR NO. 1 PISTON in TESTING AND ADJUSTING.3. Install the camshaft timing pins in the right and left inlet camshafts. 4. Remove cluster gear (1). Remove the cluster gear thrust washers from the cylinder block and from the front timing gear cover. 5. Use tooling (B) to remove the bearing from the cluster gear. 6. Remove the fuel line clamp mounting bolts (4) and (2) from the right aftercooler housing and from the left aftercooler housing.7. Remove the fuel line clamp mounting bolt (3) from the engine front lifting bracket.8. Disconnect the turbocharger heat shield water return line (5) from the top of the water temperature regulator housing on marine engines only.9. On marine engines only, remove right and left exhaust manifold front water outlet lines.10. Disconnect the water temperature gauge sending unit from the top of the water temperature regulator housing. 11. On industrial engines only, remove the right and left aftercooler vent line (6) and (9).12. Remove the aftercooler water inlet elbows (8) and (11) on industrial engines, and the aftercooler sea water outlet lines on marine engines.13. Remove water bypass line mounting bolts (10).14. Remove the water temperature regulator housing water inlet line mounting bolts (14) and (16). 15. Remove the oil filter housing and fuel filter housing support bracket (15).16. Fasten a hoist to the water temperature regulator inlet pipe (7), and remove the two water temperature regulator mounting bolts (12) and (13). Remove the water temperature regulator housing. Weight is approximately 130 lb. (59 kg). 17. Remove bolts (17), nuts and locks.18. Remove front timing gear plate (18). Weight is approximately 38 lb. (17 kg). 19. Remove oil line (19).20. Remove the camshaft drive idler gear retaining shaft mounting bolts (20) and lock.21. Remove the shaft and the camshaft drive idler gear (21).22. Use tooling (A) to remove the bearing from the camshaft drive idler gear.Install Front Timing Gears And Plate (Earlier)
1. Use tooling (A) to install the bearing in the camshaft drive idler gear with the notches in the bearing in alignment with the notches in the gear within 2°. The bearing must not extend beyond either face of the gear. Put clean SAE 30 oil on the bearing and gear retaining shaft. 2. Put idler gear (1) and shaft (2) in