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Lombardini 25LD330-2 - User Manual

Lombardini 25LD330-2
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1
COMPILER TECO/ATI ENDORSEDDATE
23.06.2003
REG. CODE
1-5302-607
MODEL N°
50889
DATE OF ISSUE
06-03
REVISION 00
25 LD 330/2
25 LD 425/2
1
st
Edition
WORK SHOP
MANUAL
25LD330-2, 425-2, series engines, p.no. 1-5302-607

Table of Contents

Questions and Answers

  • K
    katrina97Jul 31, 2025
    Why does my Lombardini Engine start but then stop?
    • M
      murphycarrieJul 31, 2025
      Your Lombardini Engine might start and then stop due to several potential issues: * Clogged pipes * Clogged fuel filter * Air inside fuel circuit * Clogged tank breather hole * Faulty fuel pump * Injector jammed * Jammed injection pump delivery valve * Wrong injector setting * Excessive plunger blow-by * Jammed injection pump delivery control * Wrong injection pump setting
  • H
    Heather JohnsonAug 15, 2025
    What causes too low oil pressure in my Lombardini 25LD330-2?
    • J
      Jasmine RobertsAug 15, 2025
      Too low oil pressure in your Lombardini Engine could be caused by: * Oil level too high * Jammed pressure relief valve * Worn oil pump * Air inside oil suction pipe * Faulty pressure gauge or switch * Clogged oil suction pipe

Summary

Foreword

General Service Notes

Important notes and guidelines for servicing Lombardini engines and using metric system.

Trouble Shooting

Safety and Warning Decals - Safety Instructions

Safety Decals and Instructions

Details on safety decals and essential instructions for engine operation and maintenance.

Technical Data

Engine Characteristics and Specifications

Comparison of technical data for 25LD330-2 and 25LD425-2 engine types.

Characteristics

Power, Torque, and Fuel Consumption Curves

Graphical representation of engine performance parameters, including power, torque, and fuel consumption.

Maintenance - Recommended Oil Type - Refilling

Maintenance Schedule and Fueling

Details on maintenance operations, recommended oil, and fuel handling procedures.

Recommended Oil Grades and Sequences

Guidance on selecting appropriate engine oil based on specifications, grade, and sequences.

Disassembly of the Engine

Checks and Overhaul

Cylinder Heads and Valve Components

Instructions for checking and overhauling cylinder heads, valves, guides, and seats.

Valves, Springs, Rocker Arms, and Cylinders

Procedures for checking and measuring valves, springs, rocker arms, and cylinder bores.

Piston Rings, Pistons, Piston Pins, and Connecting Rods

Checks and measurements for piston rings, pistons, pins, and connecting rods.

Injection Equipment

Electrical Equipment

Engine Assembly

Engine Testing

Lombardini 25LD330-2 Specifications

General IconGeneral
Number of Cylinders2
Fuel SystemIndirect injection
Lubrication SystemForced lubrication with gear pump
Engine TypeDiesel
Starting SystemElectric

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