Mack E7, Service Manual

Page: 230 / 303

Page 6-72
200 ENGINE ASSEMBLY
[214 SC] TURBOCHARGER
Installation (Includes Pre-Lubing
Procedures)
Refer to Figure 6-89.
1. Inspect the intake and exhaust systems
leading to and from the turbocharger to
ensure absence of foreign material,
including burrs and loose lining fragments.
A thorough inspection is required as even small
particles can cause severe rotor damage if
inducted during high-speed operation.
2. Use new and approved gaskets at the
various air, oil and exhaust connections to
the turbocharger. Avoid the use of sealing or
jointing compounds at all flanged
connections.
3. Use a high-temperature, anti-seize
compound (such as Fel Pro C5A) on all
threaded fasteners connected to the
turbocharger.
4. Position the turbocharger (1) over the
mounting studs on the exhaust manifold.
5. Install the four mounting nuts (6) and torque
to 40 lb-ft (54 N
폷
m) using torque wrench
J 24406 or equivalent.
6. Fill the oil inlet port to overflowing with clean
engine oil before connecting the oil feed
hose to the turbocharger.
7. Install the lubrication feed hose (2).
8. If the clamp plates or V-bands are loosened
for angular orientation of the compressor
cover or turbine housing, be certain that the
mating flanges are tightly seated and that
the fasteners are snug but will still allow
cover orientation.
Complete the orientation of the cover and
housing before making any rigid connections to
the compressor inlet or to the turbine outlet.
Torque the clamp plate capscrews (used on
Schwitzer model S300 turbocharger only) to
140 lb-in (16 N
폷
m), if equipped, and V-band
retaining nuts to 90 lb-in (10 N
폷
m) using torque
wrench J 5853-C or equivalent. Then make
certain that all ducting aligns closely with the
turbocharger. This minimizes the external
stresses acting on the unit.
9. Before connecting the drain hose, crank the
engine without firing until a steady stream of
oil flows from the drain port.
10. Install the lubrication drain tube (4) and
torque the capscrews (3) to 15 lb-ft (20 N
폷
m)
using torque wrench J 24406 or equivalent.
11. Install the clamp (5) securing the lubrication
drain tube to the oil fill tube.
12. Operate the engine at low idle for at least
three minutes after completing the
installation of the turbocharger.
Figure 6-89 — Turbocharger Installation
1. Turbocharger
2. Lubrication feed hose
3. Capscrew
4. Lubrication drain tube
5. Clamp
6. Mounting nut
5-101.bk Page 72 Friday, March 17, 2006 11:05 AM