Troubleshooting Symptoms Charts
B3.9 and B5.9 Series Engines
Section TS - Troubleshooting Symptoms
This is symptom tree T027.
the air inlet and outlet lines. Refer to Proce-
Air compressor is malfunctioning
dure 012-003. Check blowby. If blowby is within
specifications, rebuild or replace the air
Check the valve guides for wear. Replace the
ylinder head valve guides are excessively
cylinder head if necessary. Refer to Procedure
Check the pistons for correct part numbers.
Refer to Control Parts List (CPL), Bulletin No.
istons or piston rings are worn, damaged, or
3379133. Check the pistons and rings for wear
and damage. Refer to Procedures 001-043 and
urbocharger oil seal is leaking
turbine seals. Refer to Procedure 010-040 and