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Jabiru 3300 - Service Manual

Jabiru 3300
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MAINTENANCE MANUAL
FOR
JABIRU 2200 AIRCRAFT ENGINE
JABIRU 3300 AIRCRAFT ENGINE
DOCUMENT No. JEM0002-5
DATED: 2
nd
June 2015
This Manual has been prepared as a guide to correctly operate, maintain and
service Jabiru 2200 & 3300 engines.
It is the owner's responsibility to regularly check the Jabiru web site at
www.jabiru.net.au for applicable Service Bulletins and have them
implemented as soon as possible. Failure to do this may render the
aircraft un-airworthy and void Jabiru’s Limited, Express Warranty.
This document is controlled while it remains on the Jabiru server. Once
this no longer applies the document becomes uncontrolled.
Every effort is made to ensure that the information provided is accurate and up to date. However,
there is an inherent risk in the use of Jabiru® engines in aircraft and in the operation of aircraft
generally. The operator of any type of aircraft powered by Jabiru® engines assumes any and all
risk relating to such use. Accordingly, use of the information herein is at the user's risk and Jabiru
disclaims any responsibility for any errors or omissions. In the event that you have any questions
or concerns with regard to any information herein, please contact Jabiru Aircraft Pty Ltd.

Table of Contents

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Questions and Answers

  • J
    Jeremy JenkinsSep 12, 2025
    What causes knocking under load in a Jabiru Engine?
    • A
      ashley02Sep 12, 2025
      Knocking under load in your Jabiru Engine can be attributed to a few key factors. The octane rating of the fuel might be too low, or the fuel could be old or stale, so use fuel with a higher octane rating. Ensure that each spark plug is fitted with a sealing washer. Heavy carbon deposits can also cause knocking, so remove the cylinder heads and remove deposits in the combustion chamber, and determine the oil consumption.
  • S
    Sylvia HudsonSep 16, 2025
    Why is the oil pressure varying in my Jabiru 3300?
    • P
      Paul WrightSep 16, 2025
      If the oil pressure in your Jabiru Engine is varying, start by checking the oil level and replenish if necessary. Also, check for faults in the sender, gauge, or connections. Verify the continuity of the sender wire, ensure the sender body is earthed to the engine, and if possible, replace the gauge with a known good one. Adjust the oil pressure relief valve as well.
  • W
    William HallSep 18, 2025
    How to fix unsteady idling and smoky exhaust in my Jabiru 3300 Engine after warm-up?
    • J
      Jordan MasonSep 18, 2025
      If your Jabiru Engine idles unsteadily and emits smoky exhaust after the warm-up period, the following could be the reasons: * The choke may be activated; close the choke. * The float valve might be dirty, jammed, or worn; clean or renew the float valve. * There could be an intake manifold leak; tighten all connections and replace any faulty items.
  • S
    Sarah RothNov 19, 2025
    Why won't my Jabiru 3300 Engine start?
    • D
      douglas19Nov 19, 2025
      If your Jabiru Engine won't start, several factors could be at play. First, ensure the ignition is switched ON, as spark is produced when the primary coil isn't earthed. Check and adjust or replace spark plugs if the gap is too large. Verify the fuel tap is open and the fuel filter isn't clogged; also, make sure there's fuel in the tank. Confirm high tension leads are correctly connected. A faulty or discharged battery can cause a low starting speed, so recharge or replace it. Adjust the coil to magnet gap if it's too wide. Inspect high tension leads for looseness or damage. Dry any dampness in the distributors or on the spark plugs. If plugs are wet with fuel, dry them and investigate fuel system faults or carburetor overflow. Clean or renew a dirty or jammed float valve, and clean any cl...
  • B
    Brandon BaileyNov 23, 2025
    Why does my Jabiru 3300 have unsatisfactory power output?
    • A
      Autumn RiggsNov 23, 2025
      If your Jabiru Engine is producing unsatisfactory power output, several factors could be responsible. Begin by checking the ignition circuits, wiring, and pick-ups, and replace ignition units if necessary. Ensure that the oil level in the crankcase is correct, adjusting if needed. Verify that the fuel supply system is providing sufficient fuel and that the fuel meets the specified requirements. Adjust the throttle fitting if it's incorrect. Inspect for leaks in the air intake, tightening all connections and checking carby sockets. If the carburettor diaphragm is damaged, replace it. A stuck or collapsed hydraulic lifter should be replaced. If you suspect a tachometer error, check the RPM with a calibrated gauge. Ensure that the carburettor heat and choke mechanisms are turning off complete...
  • C
    Christina GillNov 25, 2025
    What to do if my Jabiru Engine won't start?
    • L
      Larry BrownNov 25, 2025
      If your Jabiru Engine won't start, several factors could be at play. Here's a breakdown of potential causes and solutions: * Ensure the ignition is switched ON. * Check the spark plug gap and adjust it to 0.6-0.7mm, or replace the plugs if needed. * Verify the fuel tap is open and the fuel filter isn't clogged. Open the tap, replace the filter, and inspect the fuel system for any leaks. * Make sure there's fuel in the tank and that the high tension leads are correctly connected as indicated on the leads. * A low starting speed due to a faulty or discharged battery can also prevent starting. Recharge or replace the battery. * Adjust the coil to magnet gap to 0.4mm (0.016"). * Inspect high tension leads for looseness or damage, and check or renew connections. * Dry distribut...

Summary

SPECIFICATIONS

OPERATING SPEEDS AND LIMITS

Defines safe operating speeds, temperatures, and pressures for the engines.

TORQUE SPECIFICATIONS

Lists torque values for various fasteners and components.

AIRWORTHINESS LIMITATIONS

OPERATING INSTRUCTIONS

STARTING PROCEDURE

Provides step-by-step instructions for starting the engine.

MAINTAINER REQUIREMENTS

TORQUE; TENSION WRENCH

Explains the use and importance of torque wrenches for accurate assembly.

TORQUE APPLICATION PROCEDURE

Details the correct technique for applying torque to fasteners.

MAINTENANCE

ENGINE INSPECTION CHART

Presents a chart detailing inspection intervals and tasks.

SERVICE & REPAIR PROCEDURES

ENGINE TEST RUN

Details the procedure for performing an engine test run.

OIL & FILTER CHANGE

Provides instructions for changing the engine oil and filter.

CARBURETTOR INSPECTION & ADJUSTMENT

Covers inspection and adjustment of the engine's carburetor.

HEAD BOLT TENSION CHECK

Explains how to check cylinder head bolt tension.

PROP STRIKE INSPECTION

Details procedures for inspecting the engine after a propeller strike.

TROUBLE SHOOTING

Jabiru 3300 Specifications

General IconGeneral
ConfigurationHorizontally opposed
Number of Cylinders6
Cooling SystemAir-cooled
Compression Ratio8.0:1
Firing Order1-4-5-2-3-6
Power Output at RPM120 hp at 3300 RPM
Oil SystemWet sump
Displacement3300 cc
Power Output120 hp
Fuel TypeAvgas 100LL
Engine TypeFour-stroke
Fuel SystemCarburetor

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