Engine Overhaul Manual
Jabiru Aircraft
Pty Ltd
Jabiru 2200 & 3300 Aircraft Engines
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ISSUE
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Dated : 28/10/2014
Issued By: AS
Page: 149 of 201
L:\files\Manuals_For_Products\Engine_Manuals\Overhaul_Manual\JEM0001-7_Overhaul_Manual_DRAFT_(29_10_14).docx
During assembly, check each HT lead fitting for tightness in the distributor cap; expand each metal
fitting until it snaps neatly into place in the cap.
NGK D9EA spark plugs are used in Jabiru Engines. If other brands are used care must be taken to
ensure they are equivalent to the D9EA in all respects. Note that Resistor type plugs are not
recommended as they reduce the spark strength and can contribute to difficult starting
– and that
Iridium plugs are generally resistor types.
The spark plug gap is set to the value given in Table 12
. Generally around 0.23” works well though the
gap can be reduced to the minimum (0.018”–0.020”) during winter to give easier starting
Always use a high-temperature graphite lubricant such as anti-seize when fitting the plugs. Tighten the
plugs to the setting given in Table 9. Note that excess lubricant on the plug thread can cause plug
misfiring when heated.
Figure 192
– HT Leads Fitted To Engine
REMOVE ENGINE FROM STAND.
7.8.15 Front Crankshaft Seal Housing
Figure 193
– Fitting Seal To Housing
HT leads fitted. Note how
leads
are
bundled
and
restrained to prevent rubbing.