EPA07 MBE 4000 SERVICE MANUAL Removal steps are as follows: HOT COOLANT To avoid scalding from the expulsion of hot coolant, never remove the cooling system pressure cap while the engine is at operating temperature. Wear adequate protective clothing (face shield, rubber gloves, apron, and boots). Remove the cap slowly to relieve pressure. 1. Drain the coolant from the radiator. Refer to section 4.1.1. NOTE: Clean the cylinder head cover before removing it. 2. Remove the trim cover frame. Refer to section 1.1.3. 3. Remove the rocker arm assembly. Mark the valve bridges and pushrods in order of removal. Refer to section 1.21.1. 4. Remove the EGR cooler support bracket. Refer to section 8.3.3.
5. Remove the air intake manifold. Refer to section 6.4.1. NOTICE: Do not move the thrust bolt, because there is danger of causing a change in the position of the transfer-tube. If the position of the transfer-tube is changed, engine damage could result. 6. Remove the high-pressure fuel line and transfer tube. Refer to section 2.4.1. 7. To prevent any dirt from entering, cover the openings in the unit. 8. Remove the turbocharger from the exhaust manifold. Refer to section 6.7.2. NOTE: If removing one or two cylinder heads, loosen the bolts on the rest of the exhaust manifold. 9. Remove the fuel return line from the cylinder head. Discard the seal rings. See Figure 1-5. NOTE:
If removing all cylinder heads, remove the exhaust manifold from the engine. 10. Disconnect the constant throttle line from the cylinder head. Discard the seal rings. 11. Disconnect the coolant line from the cylinder head. See Figure 1-5. All information subject to change without notice. DDC-SVC-MAN-0026 Copyright © 2011 DETROIT DIESEL CORPORATION 1-9