Jabiru Aircraft
Pty Ptd
Installation Manual
Jabiru 2200 Aircraft Engine
REVISION
0 1 2
Dated : March 2006
Page:
30
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Print Date: 3/8/2006 1:56:00 PM
19
Appendix C – Jabiru Engine Installation Tips
19.1 Prop
•
For optimal performance, Jabiru engines require 2800 – 2900 RPM at take off and 3200
in the air straight and level. This may vary with aircraft and prop type, but variation
beyond these limits will affect tuning and in extreme cases may result in damage to the
engine.
•
Carby tuning must not be altered other than with advice from Jabiru Aircraft. If in doubt,
contact Jabiru Aircraft or our local representative.
19.2 Tacho
•
Ensure gauge is reading correctly. While large errors will be obvious, smaller errors are
harder to pick and it is recommended to check the gauge reading with another instrument
(such as a hand-held optical prop-tach)
19.3 Cooling
•
Cowls should have adequate entry and exit areas. As a general guide, cowl outlets
should have approximately 3 times as much area as the inlets.
•
Care must be taken not to flood the cowl area with oil cooler air (excessive oil cooler duct
size). Too much air coming in through the oil cooler will reduce the amount of air flowing
through the ram air ducts & increase CHTs.
•
Air ducts as supplied are starting points and for best performance must be optimized by
the builder. Poor connections and air gaps around ducts/cooler etc give second rate
cooling
Damage caused by overheating due to poor installation techniques would not be
covered under warranty
19.4 Air
Induction
•
Air must enter from outside the cowl.
•
All scat hoses should have only slight bends, with all sharp edges removed from the
induction path (including hot air sources).
•
Ensure the filter used has adequate size.
19.5 Carburettor
•
The bowl vent line must be connected to the filtered side of air box.
•
Ensure that the two sense holes on the rear of venturi (intake side of carburettor) have not
been obscured.
•
Set engine idle when warm.
•
Ensure throttle and choke movement is correct.