Rotax 912 i series Service Manual

BRP-Rotax
MAINTENANCE MANUAL LINE
EXAMINATION AFTER ENGINE FAILURE
General note In order to find possible causes of the failure, it is important to pass on all available data.
Observations on the aircraft and the engine suspension can also be of help. It is important
to pay particular attention to any of the following engine phenomena to facilitate
troubleshooting.
Engine
Engine runs erratically and misfires
part
possible cause
Fuel system
fuel supply
vapour locks
contamination
Ignition system (wiring connectors, charg-
ing coil, ECU, FUSE BOX)
Spark plug
malfunction
grounding defect
wrong spark plug connection
loose connection
Rough running
engine
Rough running engine
part
possible cause
Ignition
wiring (assignment fault)
Engine engine temperature too low
wrong intake air
Engine stoppage
ATTENTION
Should one of the above mentioned items occur even for a short time then a de-
tailed check of the engine is necessary. The fault needs to be located and
corrected.
Unintended engine stoppage by seizing
part
possible cause
Oil system
oil pressure too low or no oil pressure
oil shortage
contamination
plugged / restricted venting
Oil pump defect
Camshaft bearings/Conrod bearings rather consequential damage wear (low oil
pressure)
Effectivity: 912 i Series
Edition 2/Rev. 0
05–50–00
Page 15
September 01/2018

Rotax 912 i series Specifications

General

Brand	Rotax
Model	912 i series
Category	Engine
Language	English