User Manual

38 SENR9977
Testing and Adjusting Section
Air Inlet and Ex
haust
System
i02253770
Air Inlet and Exhaust System
- Inspect
A general visual inspection should be made to the air
inlet and exhaust system. Make sure that there are
no signs of leaks in the system.
There will be a reduction in the performance of the
engine if there is a restriction in the air inlet system or
the exhaust system.
Hot engine components can cause injury from
burns. Before performing maintenance on the
engine, allow the e ngine and the components to
cool.
Making cont
act with a running engine can cause
burns from hot parts and can cause injury from
rotating parts.
When working on an engine that is running, avoid
contact with hot parts and rotating parts.
1. Inspect the engine air cleaner inlet and ducting
in order to ensure that the passageway is not
blocked or
collapsed.
2. Inspect the engine air cleaner element. Replace a
dirty elem
ent with a clean element.
3. Check for evidence of dirt on the clean side of the
engine ai
r cleaner element. If dirt is observed,
contaminants are flowing past the element.
i02254115
Wastegate - Test
Hot engine components can cause injury from
burns. Before performing maintenance on the
engine, allow the engine and the components to
cool.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened
component life.
g0113541 3
Illustration 46
Note: The turbocharger is a nonserviceable item.
The pressure for the wastegate can be checked, but
not adjusted.
1. Use a suitable dial indicator (1). Align the dial
gauge to the actuator rod (2).
2. Remove the air hose to the actuator . Install an air
line (3) that can be adjusted in order to give the
correct pressure.