MWM/Deutz TBD604 and TBD604B Fuel Injection Pump Repair
MWM/Deutz TBD604 and TBD604B Fuel Injection Pumps
Specialist Overhaul, Repair, Calibration and Spare-Parts Support for Bosch P10 Inline Fuel Injection Pumps
The MWM/Deutz TBD604 and TBD604B engine families are large mechanical diesel engines used in demanding marine, industrial, power-generation and stationary applications.
The TBD604B family includes configurations such as:
TBD604BL6
TBD604BV8
TBD604BV12
TBD604BV16
These engines combine direct diesel injection with turbocharging and charge-air cooling and were produced in different power ratings and technical configurations for a wide range of heavy-duty applications.
A central component of their fuel system is the mechanical Bosch P10 inline fuel injection pump.
Einspritzpumpen Manufaktur NRW specialises in the complete overhaul, precision inspection, spare-parts support and test-bench calibration of these large mechanical injection pumps.
Our specialist work includes:
TBD604 L6 / TBD604BL6
TBD604 V8 / TBD604BV8
TBD604 V12 / TBD604BV12
TBD604 V16 / TBD604BV16
and the different Bosch P10 pump configurations used throughout these engine variants.
Based in North Rhine-Westphalia, Germany – supporting customers throughout Europe and worldwide.
Not Every TBD604 Uses the Same Injection Pump
Different Engine Configurations Require Different Pump Specifications
The description “TBD604 injection pump” alone is not sufficient for reliable technical identification.
Different injection-pump configurations were used depending on:
- number of cylinders
- engine output
- rated speed
- application
- production status
- direction of rotation
- and engine configuration
Differences may include:
- number of pumping elements
- pumping-element specification
- camshaft
- cam profile
- fuel-delivery quantity
- control-rack travel
- direction of rotation
- pump drive
- coupling arrangement
- start of delivery
- and test-bench calibration
For this reason, we never identify a pump solely from its external appearance.
The decisive information is the complete combination of:
Bosch pump designation
Bosch part number
MWM/Deutz reference
engine designation
engine output
and:
rated engine speed
Bosch P10 Fuel Injection Pumps for the TBD604
The TBD604 family belongs to the large MWM/Deutz engine series using mechanical Bosch P10 inline fuel injection pumps.
There is, however, no single universal P10 pump for every TBD604.
The L6, V8 and V12 versions already differ in:
- number of pumping elements
- housing configuration
- camshaft
- drive system
- fuel-delivery characteristic
- and calibration
The TBD604BV16 adds another important feature:
The V16 engine operates with two injection pumps.
This makes the technical condition and matching of both pumps an important part of a complete V16 fuel injection system.
TBD604 L6 Fuel Injection Pump
For six-cylinder TBD604 applications, one relevant Bosch P10 configuration is:
FA-PE6/10/150/300RS15
Bosch:
9 400 365 604
Alternative search format:
9400365604
This is a six-element inline injection pump associated with TBD604 L6 applications.
Additional technical versions may exist depending on the exact engine configuration.
For this reason, the complete pump nameplate is always documented before any overhaul begins.
TBD604B V8 Fuel Injection Pump
An important Bosch P10 configuration used on the TBD604B V8 is:
PE8/10M/150/100LS46
Bosch:
9 410 365 824
Alternative search format:
9410365824
Bosch reference:
B 406 080 016
Alternative format:
B406080016
MWM/Deutz:
12137108
The complete LS46 identification is technically important.
A visually similar PE8/10 pump with a different LS designation must not automatically be considered interchangeable or calibrated to the same specification.
TBD604B V12 Fuel Injection Pumps
Twelve-cylinder TBD604 applications use corresponding twelve-element Bosch P10 inline fuel injection pumps.
One important version is:
FA-PE12/10M/150/100LS54
Bosch:
9 410 365 018
Alternative search format:
9410365018
Bosch reference:
B 406 090 010
Alternative format:
B406090010
MWM/Deutz:
12137109
This pump configuration also appears within other large MWM/Deutz engine applications, which again demonstrates why pump identification must be based on the complete technical specification rather than the basic pump family alone.
Further TBD604B V12 Pump Configurations
Another twelve-cylinder version is:
FA-PE12/10M/150/100LS55
Bosch:
9 410 365 019
Alternative search format:
9410365019
MWM/Deutz:
12309174
Further MWM/Deutz injection-pump references also occur within the TBD604BV12 family, including:
12137083
Such variations are one of the reasons why a pump should never be identified simply as:
“a TBD604 V12 pump.”
For overhaul, spare-parts selection and calibration, the exact technical configuration of the individual pump is decisive.
TBD604BV16 Fuel Injection System
Two Injection Pumps for One V16 Engine
The TBD604BV16 differs fundamentally from the smaller engine versions in one important respect.
The V16 operates with two injection pumps.
Both pumps together supply the complete 16-cylinder engine.
This means that correct operation depends not only on the individual pumping elements within each pump.
Both pumps must also work together as one complete injection system.
Important factors include:
- fuel delivery from both pumps
- balance between all pumping elements
- basic mechanical position
- control-rack movement
- pump drive condition
- component condition
- previous overhaul history
- pumping-element specification
- and engine-specific calibration
After decades of service, there is no guarantee that both pumps still have the same mechanical condition or repair history.
For example:
- only one pump may have been overhauled previously
- different pumping elements may have been fitted
- one pump may have considerably more wear
- calibration settings may have been altered
- or different internal component generations may have been installed
For this reason, wherever possible, we assess both TBD604BV16 injection pumps as one complete engine system.
Start of Fuel Delivery on the TBD604
No Universal Setting for Every Engine Variant
Correct start of fuel delivery is an essential part of the TBD604 injection system.
After work involving:
- the injection pump
- pump drive
- coupling
- or related timing components
the start of delivery must be checked and adjusted according to the actual engine specification.
Different TBD604 engine versions use different reference cylinders for checking the timing position.
Depending on the engine version, the relevant reference may be associated with:
TBD604BL6 – Cylinder 1
TBD604BV8 – Cylinder B4
TBD604BV12 – Cylinder B6
TBD604BV16 – B4 and B8
The important principle is:
There is no single universal injection timing value that should be applied to every TBD604 engine.
The correct setting depends on the actual engine configuration and its technical acceptance or commissioning data.
This is why we do not transfer timing values from a similar engine without verification.
Pump Drive and Flexible Coupling
The injection pump is not an isolated component.
It operates as part of a complete mechanical drive and control system.
Depending on engine configuration, this includes:
- pump drive gear
- injection-pump camshaft
- drive shaft
- flexible or lamella coupling
- control rack
- control linkage
- speed governor or actuator
- and engine-specific timing adjustment
A correctly calibrated injection pump can only operate correctly on the engine if the mechanical installation and timing are also correct.
For this reason, pump problems should never be assessed solely from fuel-delivery values without considering the complete drive and control arrangement.
Hydraulic or Electronic Engine Governing
Depending on the exact TBD604B configuration, engine speed control may be hydraulic or electronic.
The governor or actuator ultimately influences the injection-pump control rack and therefore the injected fuel quantity.
During technical assessment, we therefore also consider:
- governor type
- control-rack actuation
- linkage arrangement
- basic control position
- control travel
- and evidence of previous adjustment or modification
A pump tested without understanding its actual engine control configuration can easily be misinterpreted.
Our TBD604 Injection Pump Overhaul Process
1. Technical Identification
Before dismantling, we record all available identification data.
This includes:
- complete Bosch pump designation
- Bosch part number
- MWM/Deutz number
- exact engine type
- engine serial number
- number of cylinders
- rated output
- rated speed
- direction of rotation
- governor configuration
- pump drive arrangement
- individual pump or V16 pump pair
- and available calibration or engine acceptance documentation
For a TBD604BV16, both injection pumps are documented separately.
2. Incoming Condition Assessment
Before cleaning or dismantling the pump, we examine its condition as received.
We look for evidence of:
- fuel leakage
- oil leakage
- corrosion
- damaged connections
- restricted control-rack movement
- coupling damage
- altered adjustment screws
- mixed component generations
- and previous repairs
On historical injection pumps, the incoming condition can provide important information about the original cause of failure.
3. Complete Dismantling
The injection pump is dismantled into its functional components.
Depending on pump configuration, we inspect:
- pump housing
- pumping elements
- plungers
- barrels
- delivery valves
- delivery-valve holders
- camshaft
- cam profiles
- rollers
- roller tappets
- bearings
- bushes
- shafts
- control rack
- control mechanism
- springs
- drive components
- coupling
- and sealing surfaces
4. Cleaning and Precision Measurement
Following complete cleaning, all relevant components are technically evaluated.
Our assessment includes:
- pumping-element wear
- internal leakage
- dimensional accuracy
- surface condition
- corrosion
- delivery-valve condition
- camshaft wear
- cam profiles
- rollers
- roller tappets
- bearing surfaces
- bushes
- control mechanism
- and housing fits
For us, visual appearance alone is not sufficient.
A component is not considered serviceable simply because it still looks good.
Dimensional condition and actual mechanical function determine whether a component can be reused.
Pumping Elements – The Core of the Bosch P10 Injection Pump
The pumping elements operate with extremely precise internal fits.
Even relatively small amounts of wear can influence:
- fuel-delivery quantity
- internal leakage
- low-speed behaviour
- repeatability
- and cylinder-to-cylinder balance
Typical problems include:
- plunger and barrel wear
- excessive internal leakage
- corrosion
- scoring
- surface damage
- restricted plunger movement
- and unequal condition between pumping elements
On a TBD604BV16, another factor becomes important:
The condition and delivery characteristics must not only be consistent within one pump, but also make technical sense across both injection pumps.
Delivery Valves and High-Pressure Components
Delivery valves are another critical part of the injection system.
We inspect:
- valve seats
- sealing surfaces
- movement
- wear
- damage
- springs
- delivery-valve holders
- and compatibility with the actual pump configuration
A worn pumping element cannot be compensated for simply by changing calibration elsewhere.
The mechanical basis must be correct before meaningful test-bench adjustment can begin.
Camshaft, Rollers and Roller Tappets
The injection-pump camshaft creates the mechanical stroke of every pumping element.
Wear affecting:
- cam profiles
- rollers
- roller tappets
- bearing surfaces
- and shafts
can therefore influence the complete injection process.
On pumps with high operating hours, measuring only the final fuel quantity is not sufficient.
The mechanical system must first be inspected and understood.
Spare Parts for TBD604 Bosch P10 Injection Pumps
Many TBD604 injection pumps have now been in service for several decades.
Spare-parts availability is therefore becoming increasingly challenging.
Required components may:
- still be available as genuine parts
- remain in historical inventories
- exist only as New Old Stock
- be recoverable from reference pumps
- or have been completely discontinued
Depending on the project, we use:
- our own stock
- original components
- New Old Stock
- used reference components
- complete donor pumps
- historical technical documentation
- and specialised manufacturing partners
This allows us to investigate repair solutions even when normal commercial spare-parts channels can no longer supply the required component.
Reverse Engineering for Obsolete Bosch P10 Components
Where an essential original component is no longer available, we assess whether technical reproduction is possible.
Reference components may be:
- precisely measured
- analysed for material properties
- evaluated for wear
- digitally reconstructed
- transferred into CAD
- manufactured as prototypes
- functionally verified
- and subsequently produced as individual parts or small batches
Depending on component function, we consider:
- material specification
- hardness
- heat treatment
- surface finish
- tolerances
- fits
- mechanical loading
- wear behaviour
- lubrication conditions
- and long-term reliability
Our objective is not to manufacture a component that merely looks like the historical original.
The reproduced component must function correctly within the Bosch P10 injection pump.
Test-Bench Calibration
Following mechanical overhaul, the injection pump is operated on suitable test-bench equipment.
Depending on pump configuration and available calibration data, testing may include:
- fuel delivery from every pumping element
- element-to-element balance
- different test speeds
- repeatability
- control-rack travel
- shut-off position
- leakage
- mechanical operation
- and engine-specific target values
Calibration values are not copied from an externally similar pump.
The actual Bosch pump configuration and the corresponding TBD604 engine specification determine the calibration.
TBD604BV16 – Testing Both Injection Pumps
16 Cylinders Should Be Considered as One Complete System
Because the TBD604BV16 operates with two injection pumps, we recommend assessing both pumps together wherever possible, particularly where the service history is unknown or where a complete engine overhaul is being carried out.
We compare factors such as:
- pumping-element condition
- delivery quantities
- control-rack movement
- mechanical basic position
- camshaft condition
- pump identification
- component specification
- and previous repair status
Depending on the exact pump configuration, both pumps can be assessed using our test-bench equipment with up to 16 individual volumetric measuring positions.
This allows the fuel delivery of all pumping elements to be compared across the complete V16 injection system.
Our objective is not simply:
two injection pumps that work individually.
Our objective is:
a balanced fuel injection system for all 16 cylinders of the TBD604BV16.
16-Cylinder Injection Pump Test Bench
For large V16 injection systems, our workshop operates a specially configured test bench with 16 graduated measuring cylinders.
The equipment is designed for large mechanical inline injection pumps and pump pairs.
Depending on the individual system, this enables us to:
- measure individual pumping elements
- compare complete pump banks
- evaluate delivery balance
- compare both pumps
- repeat measurements at defined test points
- and match complete V16 pump systems
The test bench features a reinforced drive arrangement, increased rotating mass and an extended pump bed suitable for large injection pumps.
Why Fuel-Delivery Balance Is Particularly Important on a V16
Unequal fuel delivery between cylinders can contribute to:
- different exhaust-gas temperatures
- unequal cylinder output
- uneven thermal loading
- smoke
- increased fuel consumption
- poor load response
- irregular engine operation
- and increased mechanical wear
On a large marine or industrial V16 engine, relatively small cylinder-to-cylinder differences can become significant over long operating periods.
For this reason, maximum delivery alone is not the decisive criterion.
The goal is:
balanced and repeatable fuel delivery across the complete engine.
Injection Pump and Injector System Must Work Together
The injection pump cannot be considered completely independently from the injectors.
Depending on the TBD604 engine configuration, different versions of:
- nozzle holders
- complete nozzle-holder assemblies
- injector nozzles
- retaining nuts
- protection tubes
- and later replacement versions
may be present.
Where an engine shows:
- unequal exhaust-gas temperatures
- smoke
- loss of power
- unknown service history
- long periods of inactivity
- or has undergone a complete overhaul
the condition of the injector system should also be assessed.
A correctly calibrated injection pump cannot compensate for defective or incorrect injectors.
Frequently Searched TBD604 Injection Pumps
TBD604 L6
FA-PE6/10/150/300RS15
Bosch:
9 400 365 604
9400365604
TBD604B V8
PE8/10M/150/100LS46
Bosch:
9 410 365 824
9410365824
Bosch reference:
B 406 080 016
B406080016
MWM/Deutz:
12137108
TBD604B V12
FA-PE12/10M/150/100LS54
Bosch:
9 410 365 018
9410365018
Bosch reference:
B 406 090 010
B406090010
MWM/Deutz:
12137109
Further TBD604B V12 Configuration
FA-PE12/10M/150/100LS55
Bosch:
9 410 365 019
9410365019
MWM/Deutz:
12309174
Further MWM/Deutz reference:
12137083
Because different pump versions exist, final identification must always be based on the actual pump nameplate and engine data.
Typical Damage and Wear
Typical findings on Bosch P10 injection pumps from TBD604 applications include:
- worn pumping elements
- excessive internal leakage
- corrosion
- seized plungers
- damaged delivery valves
- restricted control-rack movement
- roller wear
- roller-tappet damage
- camshaft wear
- excessive bearing clearance
- damaged springs
- leaking shaft seals
- coupling damage
- incorrect internal components from previous repairs
- unequal delivery quantities
- and incorrect basic settings
On V16 engines, another potential problem must also be considered:
mismatch between the two injection pumps.
Why Overhauling a TBD604 Injection Pump Can Still Make Economic Sense
Many TBD604 engines remain in operation in technically important installations around the world.
Typical applications include:
- marine propulsion
- generator installations
- stationary power generation
- industrial plants
- locomotive applications
- pumping installations
- compressor drives
- and special machinery
A problem with an injection pump does not automatically mean that the complete engine has reached the end of its economic life.
Quite often, the actual problem is much more specific:
a worn pumping element, damaged delivery valve, worn mechanical component or one obsolete spare part.
Replacing the complete large diesel engine can create significant additional costs and engineering work.
This may include:
- modification of the engine foundation
- gearbox or generator adaptation
- cooling-system modifications
- exhaust-system changes
- fuel-system changes
- control-system integration
- electrical modifications
- monitoring systems
- new technical documentation
- classification requirements
- and extended downtime
For operators, technical purchasing departments and asset managers, professional overhaul of the existing Bosch P10 fuel injection system can therefore be considerably more economical than replacing the complete engine installation.
International Support for TBD604 Operators
Our services are intended for customers including:
- shipping companies
- vessel operators
- shipyards
- marine service companies
- power-generation operators
- industrial companies
- generator service organisations
- engine rebuilders
- diesel injection specialists
- technical purchasing departments
- spare-parts companies
- and operators of legacy MWM/Deutz engines
International enquiries are welcome.
Fuel injection pumps and individual components can be sent to our workshop in Germany by prior arrangement.
For overseas customers, an initial technical assessment can usually begin with photographs and the complete engine and pump identification.
Information Required for an Initial Assessment
Please provide as much information as possible.
Engine Information
- complete engine designation
- engine serial number
- TBD604 or TBD604B
- L6 / V8 / V12 / V16
- rated output
- rated speed
- application
Injection Pump Information
- complete Bosch pump designation
- Bosch part number
- MWM/Deutz number
- direction of rotation
- clear photographs of every nameplate
- photographs of the complete injection pump
- photographs of the drive side
Additional Information
- description of the fault
- known operating hours
- previous overhaul history
- existing calibration reports
- engine acceptance documentation
- spare-parts documentation
- and available start-of-delivery data
For a TBD604BV16, we recommend submitting information for both injection pumps and, wherever possible, sending both pumps together.
Frequently Asked Questions
Which Injection Pump Is Installed on My TBD604?
This depends on the engine configuration, number of cylinders, output, rated speed and technical production status.
A TBD604 L6 uses a different injection pump from a TBD604B V8 or V12.
Please send us the complete injection-pump nameplate for identification.
Which Bosch Injection Pump Is Used on the TBD604BV8?
One important configuration is:
PE8/10M/150/100LS46
Bosch:
9 410 365 824
MWM/Deutz:
12137108
Other engine configurations must still be identified individually from the actual pump and engine data.
Which Bosch Injection Pump Is Used on the TBD604BV12?
One important twelve-cylinder pump is:
FA-PE12/10M/150/100LS54
Bosch:
9 410 365 018
MWM/Deutz:
12137109
Additional V12 pump versions also exist.
How Many Injection Pumps Does a TBD604BV16 Use?
The TBD604BV16 operates with two injection pumps.
For this reason, both pumps should ideally be assessed together, particularly where their previous overhaul history is unknown.
Is There One Universal Injection-Timing Value for Every TBD604?
No.
The correct start-of-delivery setting depends on the specific engine configuration.
The relevant value must therefore be taken from the correct engine-specific technical or acceptance data.
We do not apply an arbitrary timing figure from a similar motor.
Do You Overhaul Bosch P10 Injection Pumps for TBD604 Engines?
Yes.
Bosch P10 inline injection pumps for TBD604 and TBD604B engines are part of our specialist large-diesel injection-pump work.
Can Both Injection Pumps from a TBD604BV16 Be Tested?
Yes, depending on the exact pump configuration and available technical data.
Both pumps can be inspected individually and their fuel-delivery characteristics compared and matched as part of the complete V16 system.
Can Obsolete Injection-Pump Components Be Reproduced?
Depending on the component and technical feasibility, yes.
We first investigate available genuine parts, New Old Stock and suitable reference components.
Where normal spare-parts supply is no longer possible, selected components can be reverse engineered and reproduced.
Request a TBD604 Injection Pump Assessment
Do you operate an:
MWM/Deutz TBD604 L6
MWM/Deutz TBD604BL6
MWM/Deutz TBD604 V8
MWM/Deutz TBD604BV8
MWM/Deutz TBD604 V12
MWM/Deutz TBD604BV12
or:
MWM/Deutz TBD604BV16
and require injection-pump overhaul, repair, calibration or technical support?
Please send us:
- exact engine designation
- engine serial number
- number of cylinders
- rated engine output
- rated engine speed
- complete Bosch pump designation
- Bosch part number
- MWM/Deutz number
- photographs of all nameplates
- photographs of the complete injection pump
- description of the fault
- information about previous repairs
- and any available technical or calibration documentation
After reviewing the information, we can identify the injection-pump configuration and assess the required overhaul, spare-parts and test-bench work.
Einspritzpumpen Manufaktur NRW
Specialist for Bosch P10 Injection Pumps for MWM/Deutz TBD604 and TBD604B Engines
Our services include:
TBD604 L6 Injection Pump Overhaul
TBD604BL6 Injection Pump Overhaul
TBD604BV8 Injection Pump Overhaul
TBD604BV12 Injection Pump Overhaul
TBD604BV16 Injection Pump Overhaul
Bosch P10 Inline Fuel Injection Pump Repair
Complete Dismantling
Technical Inspection
Pumping-Element Inspection
Delivery-Valve Inspection
Camshaft Inspection
Roller and Roller-Tappet Inspection
Precision Measurement
Spare-Parts Sourcing
Test-Bench Calibration
Cylinder-to-Cylinder Fuel-Delivery Balancing
Matching of Both V16 Injection Pumps
16-Cylinder Test-Bench Capability
Reverse Engineering
Reproduction of Obsolete Injection-Pump Components
From an individual pumping element to both injection pumps of a TBD604BV16, we assess the fuel injection equipment as part of the actual engine system – not as an isolated component.