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: 77 of 116
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Carefully sand off paint on crank diameter and prop flange where dial indicator will
be located.
Position dial indicator onto crank as shown above and eliminate main bearing
clearance by bearing down on crank when rotating. Rotate crankshaft to measure
crankshaft run out, normally expect to see 0.01 - 0.03 mm, but if run out exceeds of
0.08 mm the crankshaft must be replaced.
Position dial indicator onto prop flange as shown above, eliminate end float by
either pulling or pushing flange when rotating. Rotate prop flange to measure the
face run out, normally expect to see 0.02 - 0.06 mm, but if run out exceeds 0.08
mm then replace the prop flange.
Note:
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If the crankshaft run-out exceeds the above limit the engine has to be stripped and
the crankshaft replaced.
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The flywheel retaining cap screws (6) need to be replaced after any prop strike.
Even if the above run out requirements are met and depending on the severity of the prop
strike, it could be prudent that an engine strip be performed and the crankshaft MPI
tested, as internal damage may have occurred and can only be revealed by stripping the
engine.
The decision to run an engine after a prop strike and after carrying out the above run out
checks, rests with the owner. If you have any doubt about the action to take, then consult
the Jabiru factory or your Authorised Jabiru dealer for advice.
Engines running a non-Jabiru propeller (especially composite propellers), must check the
tension of the 6 flywheel cap screws at each service to determine that the cap screws
meet the torque requirement, if not, then replace the cap screws and apply Loctite to the
screws on assembly.
If an engine stoppage due to force is not recorded in the logbook and
not advised to Jabiru, the liability for all subsequent and consequential
damage will remain with the owner.
This applies to both prior to and after engine overhaul. If a crankshaft has been severely
stressed but measurements and MPI testing indicate a sound item it is Jabiru policy to not
re-use, but replace with a new crankshaft.
7.8 Starter Motor Overhaul
7.8.1 Starter motor disassembly and inspection
Remove clutch housing from starter housing
Remove clutch and bendix gear assembly
To disassemble the starter housing from the drive motor you need to remove the 2 long
AN3 bolts. These bolts are loctited on assembly and will require heating with a hot air
