Detroit Diesel — Removal of the DD13 Turbocharger

Repair & overhaul

From a Detroit Diesel service manual — check it applies to your exact model before use.

Procedure

1. Remove the turbocharger heat shields.
2. Disconnect the turbocharger ducting.
3. Disconnect and remove CAC ducting at the compressor housing; remove compressor outlet and inlet elbows.
4. Remove turbocharger oil supply and drain lines; remove O-ring from cylinder block.
5. Remove fuel inlet line and coolant inlet/outlet lines from the doser injection valve.
6. Cap banjo bolt inlet and outlet coolant lines with a nut.
7. Disconnect electrical harness from the turbocharger speed sensor.
8. For EPA10 DD13, remove the EPV air hose clamp and hose from the EPV.
9. Remove the right side radiator support mount from the engine block.
10. Remove flange exhaust manifold from turbocharger housing.
11. Remove the four nuts from the studs attaching turbocharger to the exhaust manifold center section.
12. Attach a chain hoist and lifting sling to the turbocharger assembly.
13. Remove the two bolts from the turbocharger support bracket to the cylinder block.
14. Lower turbocharger assembly away and place on a bench; discard gasket.

Source: Detroit Diesel service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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