Baudouin 12M26 Series

Questions and Answers

S
Sarah MartinezAug 19, 2025
What to do if Baudouin 12M26 Engine stops shortly after starting?
- L
  Linda HillAug 20, 2025
  If your Baudouin Engine stops shortly after starting, it could be due to several reasons. Air in the fuel system is a common cause; check the sealing of fuel pipes and connectors, tighten the bleeder screw, and bleed any remaining air. A blocked fuel filter can also cause this issue; disassemble the filter body to remove contaminants and water, and replace the filter element if needed. Poor fuel quality with high water content can also lead to engine stoppage, so clean the filter and replace the fuel. Other potential causes include a failing fuel delivery pump (check the piston and valve, clean, and repair) or a low regulated idling speed (readjust).
R
rogersmichaelOct 29, 2025
How to troubleshoot start failure of Baudouin 12M26 Engine?
- R
  Richard RobertsonOct 29, 2025
  If your Baudouin Engine fails to start, several factors could be at play. It could be a working failure of the starter motor, in which case you should first check the electric circuits. Low air temperature could also be the reason, so take auxiliary starter measures. Other potential causes include air in the fuel system (bleed the air and check the sealing performance of connectors), a blockage in the fuel delivery pump's inlet filter or fuel lines (check for dirt and fuel cleanliness), or a malfunction of the fuel injection pump (check the plunger and fuel outlet valve). Also, consider damage or leakage of valves, fuel supply pipes, or high-pressure fuel pipes. A malfunctioning fuel injector (check atomization) or insufficient cylinder compression (check valve sealing and piston rings) ca...
H
Haley CarlsonNov 8, 2025
Why Baudouin Engine has low power?
- C
  cbarnesNov 8, 2025
  Low power in your Baudouin Engine can stem from various issues. Check for an intake blockage (like a dirty air filter) and clean or replace the filter element. High exhaust backpressure could be the cause; inspect the valve timing and exhaust pipeline for blockages. Insufficient pressure in the turbocharger system, possibly due to leaks, can also reduce power. Other causes include abnormal turbocharger function (replace the assembly), blockages in the air compressor or turbine runner (clean or replace), or a failure of the floating bearing (replace). Carbon deposits, oil sludge, inter-cooler damage, fuel pipeline leakage, poor fuel quality, excessive wear on the fuel injection pump, a damaged diaphragm in the smoking limiter, air leakage in the smoking limiter pipe, poor fuel injector atom...

Summary

Foreword

Special Notice

Chapter I General Information

1.1 External View of the Diesel Engine

Illustrates the exterior components of the 12M26 series diesel engine with labeled diagrams.

1.2 Model Meaning and Basic Parameters

Explains the model designation code and provides a table of key performance parameters for the diesel engine.

1.4 Operation Notice for New Diesel Engines

Details maintenance periods and essential operation notices for new diesel engines.

1.7 Preparations and Startup Procedures

Covers essential checks before starting the engine and the procedure for engine startup.

Chapter II Maintenance Guide

2.1 Fuel, Lubricating Oil, Coolant, and Auxiliary Materials

Specifies the types and requirements for fuel, lubricating oil, coolant, and auxiliary materials for the diesel engine.

2.2 Daily Maintenance Procedures

Outlines daily service checks and maintenance tasks to ensure engine readiness and performance.

2.3 Level-Specific Maintenance

Details maintenance tasks based on engine operating hours or specific levels.

2.4 Long-Term Storage Maintenance

Provides procedures for cleaning and protecting the diesel engine during extended storage periods.

Chapter III Typical Malfunctions and Troubleshooting of Diesel Engine

3.1 Diagnostic Methods

Describes common methods for diagnosing diesel engine malfunctions, including observation and listening.

3.2 Malfunction Causes and Troubleshooting

Lists common engine malfunctions and provides detailed troubleshooting steps for each.

Chapter IV Dismantling and Assembling of Engine

4.1 Overview and Safety Precautions

Provides general overview of dismantling/assembling and crucial safety warnings and precautions.

Major Engine Components

Details the dismantling, checking, and assembling procedures for key engine components like cylinder head and block.

Engine Systems

Covers dismantling and maintenance procedures for essential engine systems like intake, fuel, cooling, and lubrication.

4.10 Startup System

Explains the startup system, including starter motor function, installation, and troubleshooting.

Annex A Recommended Torque for Standard Bolts

Annex B Recommended Torque for Hollow Bolts

Appendix C Fit Clearances for Main Parts of Diesel Engine

Baudouin 12M26 Series Specifications

General

Engine Model	12M26
Engine Type	Diesel
Cylinders	12
Cylinder Arrangement	V
Cooling System	Water-cooled
Fuel System	Direct injection
Aspiration	Turbocharged
Torque	Varies depending on model