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Post
Jan.
'98
'
F"
Series
thermostat housing
Pre
Jan. '98
Reservoir
I
Post Jan. '98
PHYSICAL ID
Water Pump
•
Water pump seals are dynamic seals.
During
engine
cran~ing,
seepage past the
seal
occurs.
•
A reservoir
has been added to the housing
to
allow
the
small
amounts
of
seepage
past
the seal to accumulate
and evaporate.
•
This
eliminates the staining seen on prior
water
pumps.
Ther
mostat Housing
•
To
provide clearance
for charge air cooler
piping and
improve
serviceability during
normal
service
operations,
the
•p•
Series
thermostat
housing
is shorter, has a thicker
H
ange
and
a new seal.
Water Pump Pulley
• The
water
pump pulley diameter has been
decreased.
•
If
service
is required, be sure
to use the
proper pulley
to
obtain
proper pump speed
and avoid
cooling system concerns.
11
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