Service difficulty report · Exhaust Valve

Difficulty date
June 29, 2002
Submitted
June 30, 2002
Operation
General aviation
Engine
Lyc O320E2G
Engine time
2,351 hours
Part
Exhaust Valve
Part number
19001
Condition
Broken
Location
Nr 3 Cylinder
Part time
2,351 hours
Stage of operation
CR
How discovered
O
Nature of condition
E
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

REPLACED NR 3 CYLINDER & PISTON DUE TO EXHAUST VALVE SEPARATION & DAMAGE TO CYLINDER CAUSED BY NOT REPLACING NEEDED PARTS AT M.O.H. (466.6-HRS S.M.O.H.) TOTAL TIME ON P/N 19001 EXHAUST VALVES 2351.6-HRS. THERE IS NO RECORD OF THE EXHAUST & INTAKE VALVES, EXHAUST GUIDES OR PISTONS REPLACED AT M.O.H. WE ACCOMPISHED T.O.H. ON ALL CYL'S BY REPLACING ALL VALVES, EXHAUST GUIDES, PISTONS, RINGS, GASKETS & SEALS. ON TEAR-DOWN WE FOUND INTAKE & EXHAUST ROCKERS REVERSED, INVERTED VALVE SPRINGS, ROCKER SHAFT THRUST BUTTONS DETERIORATED & WRONG SIZE PUSH RODS. ALSO NO ORANGE PAINT TO DESEGINATE CHROME CYLINDERS'S.