Page 82 of 1007

GENERAL DATA
04-19
Cooling system - Td4 Diesel
Cooling system - K1.8 Petrol
Cooling system - KV6 Petrol
Type Pressurised, thermostatically controlled water / anti-freeze mixture
Cooling fans Twin 11-blade axial flow electric, variable speed controlled via cooling
fan control unit by PWM signal from ECM.
Coolant pump Radial flow impeller - mechanical
Thermostat Wax element
Thermostat operating temperature:
⇒ Initial opening 88 °C ± 2 °C (190 °F ± 4°F)
Expansion tank cap relief valve - system operating
pressure
⇒ Up to 03 MY
⇒ 03 MY onwards140 kPa (1.43 bar, 20.3 lbf.in
2)
100 kPa (1.0 bar, 14.5 lbf.in2)
Type Pressurised, spill return, thermostatically controlled water/anti-freeze
Cooling fans Twin 11-blade axial flow electric, variable speed controlled via cooling
fan control unit by PWM signal from ECM.
Coolant pump Radial flow impeller - mechanical
Coolant pump drive ratio 1:1
Thermostat Wax element
Thermostat operating temperature:
⇒ Initial opening 85 °C - 91 °C (185 °F - 196 °F)
⇒ Fully open - 9 mm (0.35 in.) 100 °C (212 °F)
Expansion tank cap relief valve - system operating
pressure100 kPa (1.0 bar, 14.5 lbf.in
2)
Type Pressurised, spill return, thermostatically controlled water/ant-freeze
Cooling fans Twin 11-blade axial flow electric, variable speed controlled via cooling
fan control unit by PWM signal from ECM.
Coolant pump Radial flow - mechanical
Coolant pump drive ratio 0.93:1
Coolant pump output @ 1000 rev/min. 0.5 litres/sec. (0.875 imp. pts / sec.)
Thermostat Wax element
Thermostat operating temperature:
⇒ Initial opening 82 °C ± 2 °C (180 °F ± 4°F)
⇒ Fully open - 9 mm (0.35 in.) 102 °C (216 °F)
Expansion tank cap relief valve - system operating
pressure100 kPa (1.0 bar, 14.5 lbf.in
2)
Page 157 of 1007

MAINTENANCE
10-10 MAINTENANCE
Fuel Filter - Petrol
Replace
1.Renew fuel filter.
+ FUEL DELIVERY SYSTEM -
PETROL, REPAIRS, Filter - main.
Fuel Filter - Diesel
Replace
1.Replace fuel filter element.
+ FUEL DELIVERY SYSTEM - DIESEL,
REPAIRS, Filter - main - up to 03MY.
Fuel Pump and Filter assembly - Diesel -
03 Model Year onwards
Remove
1.Remove fuel pump and filter assembly.
+ FUEL DELIVERY SYSTEM - DIESEL,
REPAIRS, Pump and filter assembly - from
03MY.
2.Remove all traces of dirt from fuel pump and
filter assembly.
WARNING: Suitable eye protection must be
worn.
Refit
1.Fit fuel pump and filter assembly.
+ FUEL DELIVERY SYSTEM - DIESEL,
REPAIRS, Pump and filter assembly - from
03MY.
Fuel Sedimenter - Diesel - 03 Model Year
onwards
Drain
1.Position suitable container beneath
sedimenter.
2.Loosen but do not remove sedimenter drain
plug.
WARNING: Suitable hand protection must
be worn.
3.Allow sedimenter to drain until fuel, free from
water, flows from drain hole.
4.Tighten sedimenter drain plug.
Page 241 of 1007

ENGINE - K SERIES KV6
12-3-64 REPAIRS
Refit
NOTE: Following front or rear timing belt
refitment, it is possible that, after rotating the
engine and positioning the crankshaft pulley to
the 'SAFE' position, the timing marks on the
rear timing gears may be misaligned. This
misalignment is acceptable provided that the
timing belt refitting procedure was carried out
correctly.
1.Clean camshaft gears and hubs, crankshaft
gear, tensioner and water pump pulleys.
CAUTION: If the sintered gears have been
subjected to prolonged oil contamination,
they must be soaked in a solvent bath and
then thoroughly washed in clean solvent
before refitting. Because of the porous
construction of sintered material, oil
impregnated in the gears will emerge and
contaminate the belt.
2.Fit hubs to camshaft gears and fit gears to
camshafts. Fit new bolts and tighten sufficiently
to allow gears to rotate without tipping.
3.Position timing belt to crankshaft gear.
NOTE: To prevent the timing belt from
disengaging from the crankshaft gear when
fitting, fit a suitable wedge between the belt and
oil pump belt guard.
4.Fit tool LRT-12-197 into each exhaust
camshaft in turn.5.Using assistance, rotate each exhaust
camshaft slightly and align timing marks on LH
and RH rear camshaft gears.
6.Remove tool LRT-12-197 from exhaust
camshaft.
7.Fit tools LRT-12-175 to LH and RH rear
camshaft gears.
8.Rotate both front inlet camshaft gears fully
clockwise as viewed from front of engine.
9.Using fingers only, fit timing belt to gears,
starting at the crankshaft gear and working in
an anti-clockwise direction, keeping the belt run
as taut as possible and turning the camshaft
gears only a minimum amount anti-clockwise to
fit timing belt.
CAUTION: Gears must not be rotated anti-
clockwise more than one tooth.
10.Position an Allen key in tensioner backplate
and hold tensioner pulley against timing belt.
Page 289 of 1007

ENGINE - K SERIES KV6
12-3-112 OVERHAUL
35.Position tools LRT-12-196 to LH and RH front
inlet camshaft gears and into the end of each
exhaust camshaft.
CAUTION: Special tools must be fitted when
tightening or loosening gear retaining bolts,
otherwise damage to camshafts may occur.
36.Remove and discard bolts retaining front inlet
camshaft gears to camshafts.
37.Remove tools LRT-12-196 from both inlet
camshaft gears and exhaust camshafts.
38.Remove camshaft drive gears and hub
assemblies.
Refit
NOTE: Following front or rear timing belt
refitment, it is possible that, after rotating the
engine and positioning the crankshaft pulley to
the 'SAFE' position, the timing marks on the
rear timing gears may be misaligned. This
misalignment is acceptable provided that the
timing belt refitting procedure was carried out
correctly.
1.Clean camshaft gears and hubs, crankshaft
gear, tensioner and water pump pulleys.
CAUTION: If sintered gears have been
subjected to prolonged oil contamination,
they must be soaked in solvent and then
thoroughly washed in clean solvent before
refitting. Because of the porous
construction of sintered material, oil
impregnated in the gears will emerge and
contaminate the timing belts.
2.Fit hubs to camshaft gears and fit gears to
camshafts.
3.Fit new camshaft gear bolts; tighten bolts
sufficiently to allow gears to rotate without
tipping.4.Position timing belt to crankshaft gear.
NOTE: To prevent the timing belt from
disengaging from the crankshaft gear when
fitting, fit a suitable wedge between the belt and
oil pump belt guard.
5.Fit tool LRT-12-197 into each exhaust
camshaft in turn.
6.Using assistance, rotate each exhaust
camshaft slightly and align timing marks on LH
and RH rear camshaft gears.
7.Remove tool LRT-12-197.
8.Fit tools LRT-12-175 to LH and RH rear
camshaft gears.
9.Rotate both front camshaft gears fully
clockwise as viewed from front of engine.
10.Using fingers only, fit timing belt to gears,
starting at the crankshaft gear and working in
an anti-clockwise direction, keeping the belt run
as taut as possible and turning the camshaft
gears only a minimum amount anti-clockwise to
fit timing belt.
CAUTION: Gears must not be rotated anti-
clockwise more than one tooth.