Remove And Install Glow Plugs; Remove Cylinder Head - Yanmar BY Series Service Manual

Cylinder Head
12/05

Remove and Install Glow Plugs

1. Disconnect battery negative (-) terminal.
2. Remove intake manifold. See Intake Manifold
on page 5-66.
3. Release locks and remove connector
(Figure 5-8, (1)) from glow plug.
Figure 5-8
Figure 5-8
4. Use special tool OEM No. 11 6 050 to remove
glow plug (Figure 5-9, (1)) from cylinder head.
Figure 5-9
Figure 5-9
Note: If glow plug failure has occurred, it is
essential to check condition of fuses.
5. Test and replace glow plug as necessary.
6. Install glow plug using special tool OEM No.
11 6 050. Tighten to 17.5 N·m (154 in.-lb).
7. Install and lock connector to glow plug.
8. Install intake manifold. See Intake Manifold on
page 5-66.
9. Connect battery negative (-) terminal.
BY Service Manual
10. Check and delete any trouble codes that are
registered in the ECU after the work has been
completed. See After Troubleshooting or Repair
on page 13-14.

Remove Cylinder Head

1. Disconnect negative (-) battery cable.
2. Drain the coolant from the engine. NOTICE:
When working on the oil, coolant or fuel
systems protect the alternator from
contamination. Cover alternator with suitable
materials.
3. Remove turbocharger. See Remove
Turbocharger on page 9-6.
4. Remove the banjo bolt (Figure 5-10, (1))
securing the oil pressure sender line to the front
heat exchanger mount. Disconnect wires
(Figure 5-10, (2)) from oil pressure sender.
Figure 5-10
5. Remove heat exchanger. See Remove and
Install Heat Exchanger on page 7-13.
6. Remove front and rear heat exchanger
mounting brackets (Figure 5-10, (3)).
7. Remove exhaust manifold. See Exhaust
Manifold on page 5-69.
8. Remove cylinder head cover. See Remove and
Install Cylinder Head Cover on page 5-17.
9. Remove the intake manifold. See Intake
Manifold on page 5-66.
© 2009 Yanmar Marine International
ENGINE
(2)
(3)
0006623
Figure 5-10
(3)
(1)
5-19