Page 32
DESCRIPTION AND OPERATION
Coolant and Inlet Manifolds — The coolant and
inlet manifolds are both new designs changed to
accommodate the dual thermostat housing and
the EGR mixer tube (Figure 24). The coolant
manifold, like the inlet manifold, is one-piece unit
with a mounting pad on top for the thermostat
housing. The manifold is attached to the cylinder
heads with three bolts at each coolant port.
24
Figure 24 — Coolant and Inlet Manifolds
Oil Cooler Filter Screen — A filter screen in the
Y-shaped hose at the oil cooler inlet has been
added to collect debris and particulates
circulating in the cooling system. This prevents
the oil and EGR cooler cores from becoming
plugged.
25
Figure 25 — Oil Cooler Filter Screen
1. Thermostat Ports
2. Coolant Manifold
3. Mixer Tube Mounting
4. Inlet Manifold
1. Screen
2. Y-Shaped Hose
3. Hose Clamps
5-111.bk Page 32 Monday, July 10, 2006 2:26 PM
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