Jabiru Aircraft
Pty Ltd
Instruction & Maintenance Manual
Jabiru 2200 Aircraft Engine
Hydraulic Valve Lifter Models
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REVISION
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Dated : June 2010
Issued By: DPS
Page: 108 of 116
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14
Trouble Shooting
14.1 Troubleshooting Tables
14.1.1
Engine Won't Start
Possible Cause
Remedy
1)
Ignition OFF
Switch ON
2)
Spark plug gap too large
Adjust gap to 0.6-0.7mm or renew plugs
3)
Closed fuel tap or clogged filter
Open tap, renew filter, check fuel system for
leaks
4)
No fuel in tank
Refuel
5)
Wrongly connected high tension leads
Connect as shown on leads
6)
Starting Speed too low, faulty or discharged
battery
Recharge or replace battery
7)
Coil to Magnet gap too wide
Adjust to 0.25mm (0.010")
8)
High tension leads loose or damaged
Check or renew connections
9)
Dampness in distributors
Thoroughly dry internally
10) Spark plugs damp due to condensation
Thoroughly dry both inside and outside of
plugs
11) Plug face wet by fuel due to excessive
actuation of choke or overflow of carb
Dry spark plugs, trace possible faults in fuel
system or over flow of carb.
12) Float valve dirty or jammed
Clean or renew float valve
13) Jets in carb. clogged
Clean jets
14) Water in carb.
Drain & clean carb.,fuel line & filter. Water
drain fuel tank
15) Insufficient compression
Trace pressure loss & repair if necessary
16) Engine damage
Inspect oil strainer filter & oil filter for metallic
particles. If present, an engine overhaul may
be necessary.
14.1.2
Engine Idles Unsteadily After Warm-Up Period: Smoky Exhaust
Possible Cause
Remedy
1)
Choke activated
Close choke
2)
Float valve dirty, jammed or worn
Clean or renew float valve
3)
Intake manifold leak
Tighten all connections, renew faulty items
14.1.3
Engine Runs Erratically or Misfires Occasionally
Possible Cause
Remedy
1)
Spark plug failure
Check plugs, clean inside & outside, adjust
electrode gap. If necessary, renew plugs
2)
Faulty HT leads
Dry damp leads, renew damaged leads
3)
Faulty ignition unit
Renew ignition unit
4)
Clogged fuel filter
Renew fuel filter
