Teledyne TSIO-360-RB, Maintenance Manual

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20-13
COMPRESSION TEST TROUBLESHOOTING
FIRST CHECK CHECK FOR METHOD CONDITIONS
{
CORRECTIVE
ACTION
STATIC SEAL Intake Valve to Listen for air flow Carbon Stake Valve
(NO LEAKAGE seat seal in intake port Cracked Cylinder Replace cylinder
PERMISSABLE Seat worn or burned Reface or replace
Valve worn or burned Reface or replace
Exhaust valve to Listen for air flow Carbon Stake Valve
seat seal in exhaust port Cracked Cylinder Replace cylinder
Seat worn or burned Reface or replace
Valve worn or burned Reface or replace
Spark plug (2) to Apply soapy Loose helical coil Replace helical coil
port seal solution around
spark plug
Cracked cylinder Replace cylinder
Cylinder head to
barrel seal
Apply soapy
solution between
head and barrel
Bubbles Replace cylinder
Cylinder head
cracks
Apply soapy
solution around
cylinder head
area
Bubbles Replace cylinder
DYNAMIC SEAL Leakage by piston
rings remove oil
filler cap, listen
Test gauge below
tolerance
Piston cracked or out
of limits
Replace Piston
Worn rings Replace rings
Cylinder wall
dimensions out of
limits
Replace Cylinder
Test gauge
above tolerance
None None
NOTE:
{
Perform all corrective actions in accordance with Section 20-6 "Cylinder
Assembly Maintenance."
20-5 CYLINDER ASSEMBLY TROUBLESHOOTING
This troubleshooting chart is provided as a guide. Review all probable causes given.
Check other listings of troubles with similar symptoms. Items are presented in sequence of
the approximate ease of checking, not necessarily in order of probability.
TROUBLE PROBABLE CAUSE CORRECTION
Rough Idling Hydraulic tappets fouled See Section 20-6 Cylinder Assembly
Maintenance "Hydraulic Tappets."
Burned or warped exhaust valves,
worn valve seats Scored valve guides See Section 20-6 Cylinder Assembly
Maintenance "Cylinders."
Valve seats worn and leaking, piston
rings worn or stuck in ring lands See Section 20-6 Cylinder Assembly
Maintenance "Cylinders."
High Cylinder Head
Temperature Exhaust valve leaking, cylinder baffles
loose or bent. Cooling area between
cylinder fins obstructed. See Section 20-6 Cylinder Assembly
Maintenance "Cylinders."
Exhaust gasket leaking Replace gasket.