Continental Motors TSIO-520-BE Maintenance And Operator's Manual page 115

10-2 ENGINE TROUBLESHOOTING (continued)
TROUBLE
High Cylinder Head
Temperature
High Cylinder Head
Temperature.
Oil Leaks
Low Compression
Slow Engine Accelera-
tion On A Hot Day
Rough Idle At Airfields
With Ground Elevation
Of 3500 Feet Or Higher
Slow Engine Accelera-
tion At Airfields With A
Ground Elevation Of
3500 Feet Or Higher.
Engine Will Not Stop
At Idle Cut-Off
High Engine Idle Pres-
sure Impossible To
Obtain.
PROBABLE CAUSE
Dirt between cylinder fins.
Excessive carbon deposits in
cylinder head and on pistons.
Magnetos out of time. No
appreciable drop detected during
pre-flight check.
Magneto distributor block
contamination
Exhaust system gas leakage.
Exhaust valve leaking.
At front of engine; damaged
crankshaft oil seal.
Around propeller mounting
flange: damaged hub o-ring seal.
Around plugs, fittings and
gaskets due to looseness or
damage.
Piston rings excessively worn.
Valve faces and seats worn.
Excessively worn cylinder walls.
Mixture too rich.
Mixture too rich.
Mixture too rich.
Fuel manifold valve not
seating tightly.
Fuel manifold valve sticking
closed.
10-5
CORRECTION
Clean thoroughly.
Check ignition and fuel injection
system.
Retime, internally and externally.
Disassemble and repair as
required or replace magneto.
Locate and correct.
Repair cylinder.
Replace.
Replace.
Tighten or replace.
Repair cylinder.
Repair cylinder.
Replace cylinder
&
piston rings.
Momentarily pull mixture control
back until engine acceleration
picks up, then set proper mixture.
Pull mixture control back to
where the engine operates the
smoothest at IDLE RPM.
Adjust mixture per Chapter 13.
Repair or replace manifold valve.
Repair or replace manifold valve.