ENGINE AR-CORE 1854788 - Caterpillar

start by:a) remove valve coversb) remove fuel injection linesc) remove engine oil filter base (right camshaft housing only) The left camshaft housing is shown. 1. Remove plate (1) from the left side of the flywheel housing. Bolt (2) is also the timing bolt for the flywheel.2. There are two ways the engine can be turned. The first way is as follows: a) Remove bolts (4) that hold pinion (3) and spacer (5) to the flywheel housing.b) Install pinion (3) in the flywheel housing. Use a 1/2" ratchet and turn the engine.3. The second way is as follows: a) The retainer (6) that holds the vibration damper and hub on the crankshaft has a 1 1/8" nut welded to it.b) Use a 1 1/8" socket and turn the engine. This will take two persons to do this procedure. 4. Turn the engine clockwise (as seen from the flywheel) approximately 30° to remove the play in the timing gears. Turn the engine counterclockwise (as seen from the flywheel) until the threaded hole in the flywheel is in alignment with the hole in the flywheel housing and bolt (2) can be installed in the flywheel. The No. 1 piston is at top center compression stroke.5. The intake and exhaust valves for No. 1 cylinder on the right side of the engine must be free to move by hand. If not, it will be necessary to turn the engine counterclockwise (as seen from the flywheel) 360° more and install bolt (2) again. If the hole in the flywheel is turned beyond the hole in the flywheel housing, turn the engine clockwise (as seen from the flywheel) a minimum of 30° before the engine is turned counterclockwise (as seen from the flywheel) to install bolt (2).6. Install timing pin (10) in the right intake camshaft.7. Remove bracket (9) and seal (7) (left camshaft housing only). Remove engine oil filter base support (not shown) and seal (right camshaft housing only).
TYPICAL EXAMPLE8. Remove cover (8) from the camshaft housing. 9. Remove four bolts (11) that hold the camshaft housing to the cylinder head. 10. Remove bolts (12) from the top and the sides that hold the exhaust manifold shields in place. Remove strip (13). 11. Remove bolts (14) that hold elbow (15) to the aftercooler cover. Loosen the clamp on the turbocharger and turn elbow (15) away from the aftercooler cover. 12. Remove cover (16) and seal from the camshaft housing. 13. Disconnect wire (17) for the glow plugs from the terminal on the camshaft housing.14. Disconnect glow plug wire harness (18) from the glow plugs. Remove bolt (19) and clamps that hold the tube assemblies in place. 15. Remove inner fuel lines (20). Put caps or plugs on the openings.16. Disconnect tubes (21). 17. Install tooling (A) and fasten a hoist. Remove bolts (23) that hold the camshaft housing to the cylinder head. Remove camshaft housing (22). The weight is approximately 150 lb. (68 kg). 18. Remove O-ring seals (24) and (25) from