Cub Crafters CC18-180 Pilot Operating Handbook page 241

CUB CRAFTERS
CC18-180
Display
CHT
500
400
300
CHT
500
400
300
CHT
500
400
300
CHT
500
400
300
CHT
500
400
300
CHT
500
400
300
Table 9-4-5 Engine Diagnosis Chart 2
Issued: 5/31/05
Date of revision: 12/06/05
Sympton
Probable Cause
EGT and CHT
not uniform
Decrease in
EGT for all
cylinders
Slow rise in
EGT. Low CHT
High CHT on
cylinders on one
side of engine
Rapid rise in
CHT of one
cylinder
Sudden off scale
or Normalize view.
rise for any or all
cylinders
SUPPLEMENTS-EDM-800
Fouled plugs
Decrease in airflow
into the induction
system. Carb or
induction ice.
Engine units set to
Celsius
Burned exhaust
valve. CHT is low
due to low power
output.
Obstruction
under cowling.
Detonation.
Pre-ignition
or failed probe
REPORT TC10000AFM
Page number 9-4-29
SECTION 9.4
Recommended
Action
Check plugs.
Non-uniformity is
normal for carbureted
engines
Check for change in
manifold pressure.
Check that the alarm
limits are set to Celsius
degrees
Have
compression
checked.
Check for improper
installed baffeling,
cowl flap
misalignment or
bird nests.
Reduce power.
Full rich and
reduce power.
Change to
Percentage view.
Check probe