Service Manual

Turbocharger ISB, ISBe and QSB (Common Rail [...]
Page 10-46 Section 10 - Air Intake System - Group 10
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• If oil is found on the turbine housing, remove the oil
drain line, and check for restrictions. Refer to
Procedure 010-045 in Section 10.
• Clear any restrictions found.
• Install the drain line and new o-ring seals into the
engine block. Refer to Procedure 010-045 in Section
10.
NOTE: On automotive engines the exhaust catalyst must
be inspected. Refer to Procedure 011-056 in Section 11.
• If the oil drain line was not restricted, remove the
turbocharger. See the Remove section in this
procedure.
• Use a high-intensity black light, Part Number 3163338,
to inspect the turbine inlet for leaks.
• A yellow glow indicates an oil leak from the engine.
• If a yellow glow is seen, the turbocharger can be
reinstalled and returned to service. A light coating of oil
in the turbine housing and on the turbine does not
need to be cleaned as it will be burned off during
engine operation. Any puddles of oil in the turbine
housing must be removed with a clean rag prior to
installation.
NOTE: On automotive engines the exhaust catalyst must
be inspected. Refer to Procedure 011-056 in Section 11.
• If a yellow glow is not seen in the turbine inlet, replace
the turbocharger. See the Remove and Install sections
in this procedure.