Lister Petter ALPHA LPW3 - User Manual

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ALPHA Series

NEW ALPHA Series

LPW/LPWS Engine

Operators' Handbook

P027-08270

Table of Contents

Questions and Answers

D
Denise ThompsonAug 17, 2025
Why is my Lister Petter Engine difficult to start?
- M
  Margaret JonesAug 17, 2025
  If your Lister Petter Engine is hard to start or won't start at all, several factors could be at play. Ensure you're using the correct starting procedure. The issue might stem from unsuitable lubricating oil or fuel. Check if there's fuel in the tank and whether the fuel filter is clogged; if so, refill the tank, prime the fuel system, or replace the filter. Air or water/dirt in the fuel system can also cause this; prime or flush the fuel system accordingly. Other potential causes include a faulty injector or pump (replace or service), a discharged battery or poor connections (recharge/replace battery, tighten terminals), or a fuel control solenoid not energised (check electrical system shutdown devices).
S
Sandra JohnsonAug 20, 2025
What to do if Lister Petter ALPHA LPW3 Engine battery will not charge?
- P
  peterrobertsAug 20, 2025
  If the battery of your Lister Petter Engine isn't charging, check for loose or corroded connections and clean and tighten them. A worn-out battery won't hold a charge, so replace it. Also, inspect the alternator drive belt and replace or re-tension it if it's loose.
D
Dr. Madeline MoraAug 22, 2025
What to do if my Lister Petter ALPHA LPW3 stops suddenly?
- S
  sgarciaAug 22, 2025
  If your Lister Petter Engine suddenly stops, several issues could be the cause. Check for a lack of fuel and refill the tank if necessary. Air or water in the fuel system can also cause the engine to stop; in this case, prime or drain, flush, refill, and prime the fuel system. A choked fuel or air filter can also be the culprit; replace the fuel filter or clean the air filter. Other potential causes include overload (reduce the load), overheating, loss of compression (check piston rings and valves), loss of electrical supply to the fuel pump solenoid (check the electrical feed), or automatic shutdown due to protective devices (investigate and rectify the cause).
T
Troy BautistaAug 26, 2025
Why is my Lister Petter Engine losing power?
- M
  Matthew GreenAug 26, 2025
  If your Lister Petter Engine lacks power, several factors could be responsible. Loss of compression might be the cause, so check the piston rings and valves. A choked air filter can restrict airflow, so dismantle and clean the cap and element. Poor quality fuel can also lead to power loss, so drain, flush, refill, and prime the fuel system. Additionally, check for a choked exhaust system (dismantle and clean), overload (reduce the load), or a choked fuel filter (replace the filter). In some cases, a worn engine may be the reason, requiring a major overhaul.
C
Connor DyerAug 27, 2025
How to fix overheating in my Lister Petter Engine?
- J
  Jacqueline OlsonAug 28, 2025
  If your Lister Petter Engine is overheating, several factors could be the cause. Check if the radiator fan belt is too slack and adjust the belt tension. An overload can also lead to overheating, so reduce the load. Ensure the lubricating oil level is adequate by refilling the sump if it's too low. Recirculation of exhaust gases or cooling air can also cause overheating, requiring a redesign of the exhaust and ventilation system. Clean any obstructions from the radiator cooling fins. Also, check the coolant level for leaks and refill if necessary. Finally, an obstructed cooling system can cause overheating; drain, flush, and refill the system.
P
Patricia SaundersAug 30, 2025
Why is the speed of my Lister Petter Engine unstable?
- R
  Richard BoltonAug 30, 2025
  If your Lister Petter Engine has an unstable speed, it could be due to several reasons. Poor quality fuel can cause this issue, so drain, flush, refill, and prime the fuel system. A fuel system restriction, often due to a clogged fuel filter, can also lead to unstable speed; replace the fuel filter. Similarly, a restriction in the induction system, such as a dirty air cleaner element, can cause this problem; replace the air cleaner element. Lastly, a fault in the fuel lift pump can result in unstable engine speed; replace the diaphragm and/or pump.
B
Brenda RamirezSep 2, 2025
Why does the starter motor of my Lister Petter ALPHA LPW3 Engine not operate?
- S
  Sarah DodsonSep 2, 2025
  If the starter motor on your Lister Petter Engine isn't working, begin by checking for loose or corroded connections and clean and tighten them. If the battery is worn out, replace it. Also, inspect the starter panel and its connections; adjust the connections and/or replace the panel if faulty.
R
Ronald JonesSep 5, 2025
What causes undercharging in my Lister Petter ALPHA LPW3?
- M
  Michael BryantSep 5, 2025
  If your Lister Petter Engine is undercharging, it could be due to several reasons. Excessive electrical load from added accessories can cause this, so remove accessories or fit a higher output alternator. Poor electrical connections to the alternator or battery can also lead to undercharging; inspect, clean, and rectify the cause. A faulty battery may not hold a charge properly; test and recharge or replace it. Lastly, a faulty alternator can also be the culprit; test and replace it if necessary.
G
greenelizabethSep 7, 2025
Why does my Lister Petter Engine battery require excessive amounts of water?
- C
  Chad KellySep 8, 2025
  If your Lister Petter Engine's battery needs excessive water, it may be due to a leaking battery case; clean the surrounding area and replace the battery. A defective battery can also cause this issue; test or replace the battery. Additionally, a battery charging rate that's too high can lead to excessive water consumption; check the alternator output and battery charging system.
S
ssandersSep 10, 2025
What causes overcharging in a Lister Petter Engine?
- M
  Ms. Emily Pittman MDSep 12, 2025
  If your Lister Petter Engine is overcharging, the most likely cause is a faulty alternator. Test the alternator and replace it if necessary.

Lister Petter ALPHA LPW3 Specifications

General

Engine Model	LPW3
Number of Cylinders	3
Aspiration	Naturally aspirated
Compression Ratio	22:1
Fuel System	Indirect injection
Engine Type	Diesel
Bore	86 mm
Cooling System	Water-cooled
Starting System	Electric start
Displacement	1.496 liters
Lubrication System	Forced lubrication

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