SEAL 1999928 - Caterpillar

Remove Cylinder Heads
Start By:a. remove rocker shafts and push rodsFluid Spillage Containment
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to "Tools And Shop Products Guide", NENG2500 for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates.1. Drain the coolant from the cooling system into a suitable container for storage or disposal.2. Shut off the fuel supply to the engine. 3. Remove fuel lines (2) from the cylinder head and fuel line manifold (1). Remove the bolts and remove fuel line manifold (1) and the bracket from the cylinder head. 4. Remove the access cover from over the camshaft and remove bolt (4) and cap (5) that hold fuel rod assembly (3) to the fuel control shaft. 5. Remove bolts (7) and remove lever assembly (6) and fuel rod assembly (3) as a unit. If necessary remove the cover from the front right side of the flywheel housing and use Tool (A) to turn the engine flywheel until the camshaft is moved in a position so the lever of rod assembly (3) can be removed between the engine block and camshaft. 6. Remove the bolts and remove valve cover base (10) and the gasket from the cylinder head.7. Remove bolt (8) and clamp (11) from the fuel injector.
Do not put a force on the fuel injection rack or cause damage to it when the injectors are removed.
8. Use a pry bar to loosen fuel injector (9) and remove the injector from the cylinder head. 9. Remove a section of water manifold (12) and elbows (13) from the cylinder head. 10. Remove the bolts that hold air inlet elbow (15) and exhaust manifold (14) to the cylinder head. 11. Fasten a hoist to cylinder head (16) with Tooling (B). Remove bolts (17) and (18) to remove cylinder head (16) from the engine. The weight of the head is approximately 45 kg (100 lb). 12. Remove head gasket (19) and the seals from the spacer plate. Remove spacer plate (20) and the gasket from the cylinder block.Install Cylinder Heads
A new spacer plate gasket must be installed when the cylinder head is removed. See Remove And Install Spacer Plate.1. Thoroughly clean the spacer plate and bottom surface of the cylinder head. Install a new spacer plate gasket and the spacer plate on the cylinder block. Install a new head gasket and seals on the spacer plate. Do not use any adhesives.2. Put the gaskets for the exhaust manifold and air inlet elbow in position. 3. Fasten a hoist to the cylinder head with Tooling (A). Put the cylinder head into position on the spacer plate. 4. Put clean engine oil on the threads of the cylinder head bolts. Install the cylinder head bolts and washers. Tighten the