MTU 16V4000G34F User Manual (English)

Questions and Answers:

H
hmillerAug 16, 2025
Why MTU 16V4000G34F does not turn when starter is actuated?
- H
  Heidi BallAug 17, 2025
  If your MTU Engine doesn't turn over when you try to start it, several things could be the culprit. It could be due to a low or faulty battery, so you should charge or replace it. Also, check the cable connections to ensure they are secure. For electric starters, the engine cabling or starter itself might be faulty, so check the cable connections. For compressed air starters, the starting valve cabling or the starter could be defective, so check whether cable connections are properly secured. Other potential issues include faulty engine wiring, loose assemblies or connectors in the engine/generator control, or loose plug-in connections in the engine governor. If none of these resolve the issue, contact service.
C
cynthia95Aug 19, 2025
What to do if MTU 16V4000G34F Engine turns on starting but does not fire?
- B
  Benjamin HutchinsonSep 12, 2025
  If your MTU Engine turns on starting but does not fire, it could be due to several reasons. If you have an electric starter, a low or faulty battery could cause poor rotation, so charge or replace the battery. If you have an air starter, low pressure could be the issue, so check the compressed air system. Other potential causes include faulty engine wiring or air in the fuel system. You can vent the fuel system. If the engine governor is defective, contact service.
J
Jessica AndersenAug 22, 2025
Why MTU 16V4000G34F Engine emits black exhaust gas?
- M
  mosesjulieAug 22, 2025
  Black exhaust gas from your MTU Engine can be caused by a few issues. The air filter might be clogged, so check the signal ring position of the service indicator. Also, the injector could be defective and may need replacement. In case of engine overload, contact service.
J
Jared GonzalezAug 25, 2025
What causes MTU Engine to fire unevenly?
- M
  Michael PattersonAug 25, 2025
  Uneven firing in your MTU Engine can stem from a few sources. A defective injector could be the cause, so check and replace it if necessary. Faulty engine wiring can also lead to this issue. Additionally, air in the fuel system might be the problem, so vent the fuel system. If none of these resolve the issue, the engine governor might be defective, and it's best to contact service.
B
Brian McmahonAug 27, 2025
How to fix if MTU 16V4000G34F does not reach nominal speed?
- U
  uingramAug 27, 2025
  If your MTU Engine isn't reaching its nominal speed, several factors could be responsible. A clogged fuel prefilter (either switchable or non-switchable) is a common cause, so replace it. A clogged fuel filter can also restrict performance, so replace it. Check the signal ring position of the service indicator, as it may indicate a clogged air filter. Other potential issues include a defective injector (replace it), faulty engine wiring. In case of engine overload, contact service.
L
Larry DunnAug 30, 2025
What causes high charge-air temperature in MTU 16V4000G34F?
- C
  Cynthia ChurchAug 30, 2025
  High charge-air temperature in your MTU Engine can be attributed to a few reasons. The engine coolant treatment might be incorrect, so check it using the MTU test kit. Additionally, a dirty intercooler can cause this issue. Also, check the fans and intake/exhaust lines, as the engine room air-intake temperature may be too high.
C
Christopher SpencerSep 1, 2025
Why is MTU 16V4000G34F Engine speed not steady?
- D
  daniel84Sep 2, 2025
  Unsteady engine speed in your MTU Engine can arise from several causes. A defective injector could be the culprit, so replace it. The speed transmitter might also be defective, so contact service. Air in the fuel system can also lead to this issue, so vent the fuel system. If none of these steps resolve the problem, the engine governor might be defective, and you should contact service.
E
Elizabeth LarsonSep 4, 2025
What causes low charge-air pressure in MTU 16V4000G34F Engine?
- W
  Wesley OliverSep 4, 2025
  Low charge-air pressure in your MTU Engine can be due to several factors. Leaking air pipework is a common cause, so check the air pipework for leakage. A clogged air filter can also restrict pressure, so check the signal ring position of the service indicator. Other potential issues include a dirty intercooler or a defective exhaust turbocharger, so contact service.
R
Rebecca WallsSep 7, 2025
Why MTU Engine emits white exhaust gas?
- H
  Heather DavisSep 8, 2025
  White exhaust gas from your MTU Engine can indicate several issues. The engine may not be at its operating temperature, so run the engine to reach it. Water in the fuel can also cause this, so check the fuel system on the fuel prefilter and drain water from the fuel prefilter (both switchable and non-switchable types). Also, the intercooler might be leaky, so contact service.
K
Karla LyonsSep 10, 2025
What does blue exhaust gas from MTU 16V4000G34F mean?
- C
  Cynthia MilesSep 10, 2025
  Blue exhaust gas from your MTU Engine can point to a few problems. There might be too much engine oil in the engine, so drain some oil. The oil separator of the crankcase breather could be contaminated, so replace the filter. In case of a defective exhaust turbocharger, cylinder head, piston rings, or cylinder liner, contact service.

MTU 16V4000G34F Specifications

General

Engine Model	16V4000G34F
Speed	1800 rpm
Rated Speed	1800 rpm
Number of Cylinders	16
Bore	170 mm
Stroke	210 mm
Compression Ratio	16.5:1
Cooling System	Water-cooled
Emissions Compliance	EPA Tier 2
Engine Type	Diesel

Summary

Operating Instructions

1 Safety

1.1 Important provisions for all products

General safety provisions for all products, including risks and nameplates.

1.2 Important requirements for Power Generation application products

Requirements for power generation products, operational environment, residual hazards, and noise.

1.3 Gendrive engines – Intended use

Defines the intended use of Gendrive engines and modifications/conversions.

1.4 Personnel and organizational requirements

Requirements for personnel, training, and personal protective equipment.

1.5 Safety regulations for initial start-up and operation

Regulations for initial start-up, operation, malfunctions, and emergency stops.

1.6 Safety regulations for assembly, maintenance, and repair work

Safety regulations for work prior to, during, and after assembly, maintenance, and repair.

1.7 Fire and environmental protection, fluids and lubricants

Fire prevention, noise, environmental protection, disposal, and fluids/lubricants safety.

2 Transport

2.1 Transport

Special tools, material, spare parts for transport, and general transport instructions.

2.2 Lifting specifications

Safety warnings and specifications for lifting engines/generators, including center of gravity.

4 Technical Data

4.1 Product data 12V4000G34F, 12V4000G94F

Key for reference values, product data table, and reference conditions for 12V engines.

4.2 Product data 16V4000G34F / 16V4000G94F

Key for reference values, product data table, and reference conditions for 16V engines.

5 Functional Description

5.1 Engine models 12/16V4000G34F and 12/16V4000G94F – Overview

Provides an overview of the engine's driving end (KS) and free end (KGS).

5.7 Fuel system with Common Rail injection

Describes the fuel system, technical data, benefits, and operation of the Common Rail system.

5.8 Charge-air and exhaust system

Details the charge-air and exhaust system components, technical data, benefits, and operation.

5.9 Lube oil system

5.10 Cooling system

5.12 Engine management and monitoring

Details engine management, monitoring systems, engine governor ECU 9, technical data, and functions.

6 Operation

6.1 Putting the engine into operation after extended out-of-service periods (>3 months)

Preconditions and steps for putting the engine into operation after extended periods of inactivity.

6.2 Putting into operation after scheduled out-of-service-period

6.3 Starting the engine in manual mode (test run)

Preconditions, preparation, starting the engine, and connecting the generator for warm-up.

6.4 Re-starting the engine following an automatic safety shutdown

Notice regarding restarting after safety shutdown and procedure to follow.

6.5 Safety system – Override

Explains the override function for safety and shutdown alarms in emergency situations.

6.6 Operational monitoring

Details operational monitoring of control panels, engine oil, fuel prefilter, exhaust, intercooler, and air filter.

6.7 Emergency engine start (Override mode)

Procedure for emergency engine start using override mode, including preparation and connection to mains.

6.8 Stopping the engine in manual mode (test run)

Preconditions and steps for stopping the engine in manual mode, including generator preparation.

6.9 Emergency engine stop

Procedure for emergency engine stop using the pushbutton and actions after an emergency stop.

6.11 After stopping the engine – Putting the engine out of operation

7 Maintenance

7.1 Maintenance task reference table [QL1]

Reference table for maintenance tasks and intervals, linking to the Maintenance Schedule.

8 Troubleshooting

8.2 Fault messages of the ADEC (ECU 9) engine governor for Series 4000 genset engines

Covers SS T-Coolant Intercooler, P-Lube Oil, and Coolant Level fault messages.

8.1 Troubleshooting

Troubleshooting for refdrive impossibilities and engine operation point faults.

9 Task Description

9.1 Engine

9.1.2 Engine – Cranking on starting system

9.1.3 Engine – Test run

Outlines the steps for performing an engine test run and operational checks.

9.2 Cylinder Liner

9.4 Valve Drive

9.4.3 Valve clearance – Check and adjustment

Preconditions, special tools, preparatory steps, diagrams, and checking/adjusting valve clearance.

9.5 Injection Pump / HP Pump

9.6 Injector

Special tools, material, spare parts, and overview of injector replacement.

9.6.2 Injector – Removal and installation

Preconditions, special tools, warnings, nameplate details, and steps for removal/installation.

9.8 Fuel Filter

Preconditions, special tools, warnings, and steps for replacing the fuel filter.

9.9 Charge-Air Cooling

9.12 Lube Oil System, Lube Oil Circuit

Preconditions, special tools, warnings, and steps for draining and filling engine oil.

9.13 Oil Filtration / Cooling

Preconditions, special tools, warnings, and steps for replacing the engine oil filter.

9.13.2 Centrifugal oil filter – Cleaning and filter sleeve replacement

9.14 Coolant Circuit, General, High-Temperature Circuit

9.14.2 Engine coolant – Change

9.14.3 Engine coolant – Draining

9.14.4 Engine coolant – Filling

9.15 Low-Temperature Circuit

9.17 Battery-Charging Generator

9.18 Wiring (General) for Engine/Gearbox/Unit

9.19 Engine Mounting / Support

9.19.1 Engine mounting – Checking securing screws for firm seating

9.20 Accessories for (Electronic) Engine Governor / Control System

9.20.3 Engine Control Unit ECU 9 – Removal and installation

9.20.4 Parameters for drift correction (CDC) – Resetting with DiaSys®

Note on emissions certification and procedure for resetting drift correction parameters with DiaSys®.

10 Appendix A

10.3 Tightening specifications for screws, nuts and bolts

Details tightening torques for SAE sealing cone with union nut JIC 37° and ORFS.

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