Detroit Diesel MBE4000 Manuale utente

18SP629 – MBE4000 EGR Connector Pipe Installation

KIT DESCRIPTION

A new service kit (P/N: 23536463) is now available to install an EGR connector pipe and sealing rings on

MBE4000 engines.

NOTICE:

This kit should only be used on EGR engines prior to unit serial number 0460833653.

KIT CONTENTS

This kit contains the parts listed in Table 1.

Part Number Quantity Description

4601400048 1 EGR Connector Pipe

0001427857 2 Seal Ring

0009941718 2 Wave Spring

18SP629 1 Installation Instructions

Table 1 Content for Service Kit (P/N: 23536463)

INSTALLATION PROCEDURE

Install the bracket as follows (see Figures 1-5):

PERSONAL INJURY

To avoid injury before starting and running the engine, ensure

the vehicle is parked on a level surface, parking brake is set, and

the wheels are blocked.

1. Loosen and remove the outside nut that is resting on the outside face of the stud bracket.

See Figure 1.

18SP629 Page 1 of 6

Figure 1 Nut on Stud Bracket

2. Loosen and remove the bolt from the positioning clamp which holds the gas inlet pipe to the throttle

shutoff valve and remove the clamp. See Figure 2.

Figure 2 Positioning Clamp

3. Gently pull the gas inlet pipe from the center piece of the exhaust manifold and the throttle shutoff

valve. Note the arrows highlighting the affected areas in Figure 3.

18SP629 Page 2 of 6

Figure 3 Gas Inlet Pipe

4. Remove the air supply line to the throttle shutoff valve actuator. See Figure 4.

Figure 4 Air Supply Line to Throttle Shutoff Valve Actuator

5. Remove the two throttle shutoff valve mounting bolts and then the throttle shutoff valve.

See Figure 5.

18SP629 Page 3 of 6

Figure 5 Throttle Shutoff Valve Mounting Bolts

6. Slide out the EGR connector pipe from the EGR cooler.

7. Install one of the wave springs into the EGR cooler inlet. Make sure the flat side of the wave spring is

facing out. See Figure 6.

1. Wave Spring 3. EGR Connector Pipe

2. Seal Ring 4. Throttle Shutoff Valve

Figure 6 EGR Connector Pipe Assembly

8. Install one of the seal rings into the EGR cooler inlet against the flat side of the wave spring.

See Figure 6.

9. Inspect the EGR connector pipe assembly BEFORE installing it. There are four grooves on the

connector pipe assembly – two on each end.

18SP629 Page 4 of 6

NOTICE:

To avoid connector pipe damage, the Fey rings must be installed according to directions.

•Each groove contains two Fey rings, so there are a total of eight Fey rings.

•Within each groove, make sure the Fey rings are staggered 180 degrees from each other.

•Make sure the Fey ring set in each groove are staggered 180 degrees from the Fey ring set in the

neighboring groove.

•The net effect is the Fey ring gaps are staggered 90 degrees at each end of the pipe assembly.

10. Install the new EGR connector pipe assembly into the EGR cooler.

11. Install the other wave spring into the throttle shutoff valve. Make sure the flat side of the wave spring

is facing out. See Figure 6.

12. Install the other seal ring into the throttle shutoff valve against the flat side of the wave spring.

See Figure 6.

13. Slide the throttle shutoff valve onto the new EGR connector pipe assembly. See Figure 6.

14. Install the two throttle shutoff valve mounting bolts and torque them to 35 N·m (26 lb·ft).

See Figure 5.

15. Install the air supply line to the throttle shutoff valve actuator and torque the nut to

25 N·m (18 lb·ft). See Figure 4.

16. Gently install the gas inlet pipe into the center section of the exhaust manifold and the throttle shutoff

valve. See Figure 3.

17. Install the positioning clamp and hand tighten the bolt. See Figure 2.

18. Install the outside nut on the stud bracket and torque to 25 N·m (18 lb·ft). See Figure 7.

19. Check the length of the stud and verify it is 219 mm (8.62 in). If not, adjust the stud to

219 mm (8.62 in). Reference the MBE4000 Service Manual (6SE412). See Figure 7.

18SP629 Page 5 of 6

Figure 7 Stud Adjustment

20. Torque the positioning clamp to 12 N·m (9 lb·ft). See Figure 2.

PERSONAL INJURY

Diesel engine exhaust and some of its constituents are known to

the State of California to cause cancer, birth defects, and other

reproductive harm.

• Always start and operate an engine in a well ventilated area.

• If operating an engine in an enclosed area, vent the exhaust to the

outside.

• Do not modify or tamper with the exhaust system or emission

control system.

21. After all repairs are complete, start and run the engine to ensure it is operating properly.

trademarks of Detroit Diesel Corporation. All other trademarks are the property of their respective owners.

18SP629 Page 6 of 6

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