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Engine Maintenance Manual
Jabiru Aircraft
Pty Ltd
JEM0002-5
Jabiru 2200 & 3300 Aircraft Engines
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ISSUE
1
2
3
4
5
Dated : 2nd June 2015
Issued By: AS
Page: 61 of 103
L:\files\Manuals_For_Products\Engine_Manuals\Engine Maintenance Manual 22 & 33\JEM0002-5.docx
Figure 34
– Adjusting High Tension Lead Caps
9.10
Spark Plugs
Required Tools:
Plastic Brush
Fine nosed pliers
Torque wrench, Spark plug spanner
Parts and Material:
Solvent
Anti-seize compound
Type of Maintenance:
Line Maintenance
Level of Certification:
L1, L2 or LAME (Owner, A&P or LSA Repairman / Maintenance)
Return to Service:
L1, L2 or LAME (Owner, A&P or LSA Repairman / Maintenance)
Do not use steel or brass brushes for cleaning & never sandblast plugs.
Clean with plastic brush in a solvent.
Check electrode gap & if necessary, adjust to the gap given in Section 3.4 by carefully bending
the electrode.
CAUTION
DO NOT reduce the electrode gap by tapping the plug against a hard object
– damage to the
insulator can result.
Recommended Plugs: NGK D9EA. Note that spark plug terminal nuts must be used (Figure
35)
Use suitable anti-seize on thread and install to the torque setting given in Table 10. Note that
engine must be cold to accurately set plug torque.
When using CHT sensors equipped with a ring terminal under the spark plug ensure the ring
terminals are centred over the plug.
CAUTION
Off-centre terminals will give a false, high CHT reading.
Figure 35
– Spark Plug Terminal Nut
Spark plug terminal nut