TP-6071 3/0010 Section 3 Intake and Exhaust System
3.3 Servicing Mixing Elbow
The mixing elbow combines high-temperature exhaust
with cooling seawater. The mixture when exposed to
engine vibration makes conditions conducive to rapid
deterioration and failure if the elbow is not properly
maintained.
1. Check the mixing elbow for carbon buildup and
corrosion inside the pipe.
2. Clean or replace the mixing elbow as necessary.
3. Inspect the exhaust manifold mounting threads for
cracking and corrosion.
3.4 Turbocharger
(Models: 14/15.5/23/24EOZ
and 11.5/13/19/20EFOZ)
Inspect the compressor (blower) at the specified interval
for build-up of carbon residue. Perform all other
turbocharger inspection and service as described in the
service schedule of the Yanmar service manuals. See
Figure 3-2 and Figure 3-3 to inspect the compressor.
Compressor Inspection:
1. Remove the breather hose from the air intake
silencer connector, if equipped.
2. Remove the air intake silencer.
3. Inspect the compressor (blower) housing and the
impeller (blower wheel) for buildup of carbon
residue. Use a Yanmar approved turbocharger
cleaner, if cleaning is required.
4. Place the air intake silencer over the turbocharger
compressor housing inlet and tighten the clamp.
5. Attach the breather hose to the air intake silencer
connector, if equipped.
TP-6071-32
1
2
3
4
5
6
7
1. Compressor housing
2. Rotor assembly (turbo)
3. Housing assembly (blower)
4. Plate assembly (seal)
5. Circlips
6. Housing assembly (bearing)
7. Heat protector
Figure 3-2 Turbocharger Inspection
1
2
3
4
5
TP-6071-32
1. Turbocharger assembly
2. Gaskets
3. Exhaust elbow
4. Exhaust manifold
5. Petcock PT 1/8
Figure 3-3 Turbocharger Components, Typical
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