Trouble Shooting - Rotax 912 series Operator's Manual

12)Trouble shooting

WARNING:
Engine does not start
POSSIBLE CAUSE:
a - ignition off
b - closed fuel tap or clogged filter
c - no fuel in tank
d - starting speed too low, faulty or
discharged battery
e - starting speed too low, start
problems on cold engine
Engine idles rough after warm-up period, smoky exhaust emission
POSSIBLE CAUSE:
a - starting carb activated
Low oil pressure
POSSIBLE CAUSE:
a - not enough oil in oil tank
Effectivity: 912 Serie
OM initial issue
Only qualified staff (authorized by the Aviation Authorities)
trained on this particular engine, is allowed to carry out
maintenance and repair work.
If the following hints regarding remedy do not solve the
problem, contact an authorized workshop. The engine must
not be operated until the problem is rectified.
AIRCRAFT ENGINES
REMEDY:
switch on.
open tap, clean or renew filter,
check fuel system for leaks.
refuel.
fit fully charged battery.
use top quality, low friction oil;
allow for sufficient cooling period
to counter for performance drop
on hot starter; pre-heat engine.
REMEDY:
close starting carb.
REMEDY:
check oil return line for free
passage, renew oil seal.
page 12 - 1
July 01/98