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NUMBER: 07 EPA04 MBE 4000-6 S.M. REF.: 1.2.2 ENGINE: MBE 4000 DATE: November 2007 SUBJECT: CYLINDER HEAD BOLTS TIGHTENING STAGES PUBLICATION: 6SE412 The cylinder head bolts tightening stages have been updated as listed in Table 1. Section Change 1.2.2 Section title has been updated.
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1.2.2 INSTALLATION OF CYLINDER HEAD Installation steps are as follows: 1. Install a new head gasket. Match up the holes in gasket with those in the cylinder block and place the head gasket over the guide pins in the block. 2.
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NOTE: For the correct tightening sequence, see Figure 2. Listed in Table 3 are the specific stages in the tightening sequence. Figure 2 Tightening Sequence, Cylinder Head Bolts Size Max. Shaft Length Tightening Stage Torque Value: N·m (lb·ft) Stage 1 10 (7) Stage 2 50 (37)
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NOTICE: Correct torque on the high-pressure fuel lines is critical. Incorrect torques could result in leaks or lack of power due to restricted fuel flow. 9. Without moving the transfer-tube thrust bolt, install the high-pressure fuel line as removed. [a] When installing the transfer-tube fitting, use one wrench to hold the thrust bolt, and another to tighten the fitting.
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20. Fill the radiator with coolant. 21. Install the cylinder head cover. 22. Install the engine trim cover. NOTE: Prime the fuel system. ENGINE EXHAUST To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic. 23.
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ADDITIONAL SERVICE INFORMATION Additional service information is available in the Detroit Diesel EPA04 MBE 4000 Service Manual (6SE412). The next revision to this manual will include the revised information. Detroit Diesel®, DDC® and the spinning arrows design are registered trademarks of Detroit Diesel Corporation.
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