Page 158
REPAIR INSTRUCTIONS, PART 1
EXTERNAL OIL SUPPLY ARRANGEMENT
ASET™ AC ENGINES BUILT AFTER
DECEMBER 2003
For all ASET™ AC engines produced after
December 2003, the oil supply source for the
VTG turbocharger is from the supply port on top
of the oil filter mounting bracket. The oil supply for
the EGR valve is now a separate oil supply line
from the cylinder block oil supply port as
illustrated in Figure 145. These are both direct oil
lines without the use of any junction blocks or
F-fitting. For J-Tech™-equipped engines, a
No. 10 size line is connected between the oil filter
mounting bracket and a junction block at the left
side of the cylinder heads. Oil is supplied to the
J-Tech™ engine brake assemblies (if equipped)
from this block. A No. 6 size line passes between
the cylinder heads directly to the turbocharger.
Avoid contaminating loose oil lines and fittings
when disconnected. Fitting and oil line
cleanliness is very important.
145
Figure 145 — EGR and VTG Oil Supply Lines (AC Engines Built After December 2003)
1. EGR Valve Oil Supply Line Fitting at Cylinder Block
2. EGR Valve Oil Supply Line, No. 6 Size
3. Turbocharger Supply Line, No. 6 Size
4. Turbocharger (VTG)
5. EGR Valve
6. Oil Supply Fitting at Filter Bracket
7. Harness (Ref.)
5-111.bk Page 158 Monday, July 10, 2006 2:26 PM
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