Detroit Diesel MBE 4000 Service Manual page 417

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3. Install the turbocharger on the exhaust manifold. listed in Table 6-1 are the torque values.
Exhaust Brake Valve Housing to Turbocharger
Heat Shield Mounting Bolts
Turbocharger to Exhaust Manifold
Turbocharger Oil Return Line Mounting Bolts
Turbocharger Oil Line Banjo Bolts
Turbocharger Oil Supply Line Mounting Bolts
Turbocharger Oil Return Line Connection
Turbocharger Oil Return Line Banjo Bolt
Table 6-1
[a] Coat four new prevailing torque locknuts with a light coating of high temperature
grease.
[b] Make sure that the mating surfaces of the turbocharger and the exhaust manifold
are clean and free of damage.
[c] Position the turbocharger over the mounting studs on the exhaust manifold.
[d] Install the nuts and tighten them 50 N·m (37 lb·ft).
4. Attach the oil return line to the turbocharger and the cylinder block. Listed in Table 6-1
are the torque values.
[a] Install a new gasket where the end flange of the return line meets the turbocharger.
[b] Install the mounting bolts through the holes in the end flange. Tighten them 25
N·m (18 lb·ft).
[c] Install two new seal rings on the banjo fitting at the other end of the return line.
[d] Install the banjo bolt attaching the return line to the engine oil return inlet. Tighten
the bolt 35 N·m (26 lb·ft).
5. Fill the bearing housing with clean engine oil through the oil inlet port. Turn the
turbocharger wheel several times to coat the bearings with oil.
NOTE:
If the turbocharger wheel cannot be spun freely by hand or if there is any indication of
rubbing or scraping, determine the reason before starting the engine. One cause of
wheel rubbing is a misaligned turbocharger housing.
6. Refill the oil inlet port and connect the oil supply line. listed in Table 6-1 are the torque
values.
[a] Install a new gasket where the end flange of the supply line meets the turbocharger.
All information subject to change without notice.
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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Description
Turbocharger Torque Values
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MBE 4000 SERVICE MANUAL
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N·m (lb·ft)
50 (37)
25 (18)
50 (37)
25 (18)
35 (26)
25 (18)
50 (37)
120 (88)
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