Page 371 of 1007

COOLING SYSTEM - K SERIES KV6
26-3-6 REPAIRS
Thermostat
$% 26.45.01
Remove
1.Disconnect battery earth lead.
2.Drain cooling system.
+ COOLING SYSTEM - K SERIES KV6,
ADJUSTMENTS, Coolant - drain and refill.
3.Remove inlet manifold chamber.
+ MANIFOLDS & EXHAUST SYSTEMS
- K SERIES KV6, REPAIRS, Seals - inlet
manifold chamber - up to 03MY.
4.Remove 2 bolts securing RH fuel rail to inlet
manifold. Remove injector protection cover if
fitted.
5.Release 2 clips securing engine harness to rear
engine lifting bracket and bracket on RH inlet
manifold.
6.Release clip and disconnect bottom hose from
thermostat housing.
7.Loosen clip and disconnect heater hose from
thermostat housing.8.Release clip and disconnect top hose from
coolant elbow.
9.Remove bolt securing thermostat housing and
coolant elbow to cylinder block.
10.Remove coolant elbow from cylinder block.
11.Remove thermostat housing and coolant pipe
from cylinder block.
12.Release clip and remove coolant pipe from
thermostat housing.
13.Remove and discard 4 'O' rings from
thermostat housing, coolant elbow and coolant
pipe.
Refit
1.Lubricate new 'O' rings with rubber grease and
fit to sealing grooves in thermostat housing,
coolant elbow and coolant pipe.
2.Fit coolant pipe into thermostat housing, ensure
clip connectors are uppermost.
3.Position thermostat housing and coolant pipe
above cylinder block, engage coolant pipe in
cylinder block and press thermostat housing
firmly into position. Ensure mounting flange on
thermostat housing is aligned to bolt hole in
cylinder block.
4.Fit coolant elbow into cylinder block, press
firmly into place. Ensure mounting flange is
aligned correctly to thermostat housing flange.
5.Fit bolt to coolant elbow and thermostat
housing flanges. Tighten bolt to 18 Nm (13
lbf.ft).
6.Connect top hose to coolant elbow and secure
with clip.
7.Connect heater and bottom hoses to
thermostat housing, secure with clips.
8.Position and secure engine harness to brackets
with clips.
9.If fitted, position injector protection cover to RH
fuel rail, fit and tighten bolts to 9 Nm (7 lbf.ft).
10.Fit inlet manifold chamber.
+ MANIFOLDS & EXHAUST SYSTEMS
- K SERIES KV6, REPAIRS, Seals - inlet
manifold chamber - up to 03MY.
11.Fill cooling system.
+ COOLING SYSTEM - K SERIES KV6,
ADJUSTMENTS, Coolant - drain and refill.
12.Connect battery earth lead.
Page 372 of 1007
COOLING SYSTEM - K SERIES KV6
REPAIRS 26-3-7
Coolant pump
$% 26.50.01
Remove
1.Disconnect battery earth lead.
2.Drain cooling system.
+ COOLING SYSTEM - K SERIES KV6,
ADJUSTMENTS, Coolant - drain and refill.
3.Remove camshaft timing belt.
+ ENGINE - K SERIES KV6, REPAIRS,
Camshaft timing belt.
4.Remove and discard 7 bolts securing coolant
pump to cylinder block.
5.Release coolant pump from cylinder block and
remove.
6.Remove and discard 'O' ring from coolant
pump.Refit
1.Clean coolant pump and mating face of cylinder
block.
2.Lubricate new 'O' ring with rubber grease and fit
to coolant pump.
3.Fit coolant pump to cylinder block. Fit new bolts
and tighten progressively in the sequence
illustrated to 9 Nm (7 lbf.ft).
4.Fit camshaft timing belt.
+ ENGINE - K SERIES KV6, REPAIRS,
Camshaft timing belt.
5.Fill cooling system.
+ COOLING SYSTEM - K SERIES KV6,
ADJUSTMENTS, Coolant - drain and refill.
6.Connect battery earth lead.
Page 380 of 1007

MANIFOLDS & EXHAUST SYSTEMS - K SERIES KV6
REPAIRS 30-3-7
Heat shield - A/C compressor - KV6 - NAS
$% 30.10.32
Remove
1.Disconnect battery earth lead.
2.Remove engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
3.Using a 3/8” square drive socket bar, raise
ancillary drive belt tensioner and release drive
belt from alternator pulley.
4.Remove underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
5.Remove 3 bolts securing A/C compressor to
fixing brackets and position compressor aside.
6.Remove compressor heat shield.Refit
1.Clean compressor and mounting bracket
mating faces.
2.Fit compressor heat shield.
3.Position compressor to mounting and align
heat shield. Fit and tighten bolts to 25 Nm (18
lbf.ft).
4.Using a 3/8" square drive socket bar, raise
ancillary drive belt tensioner and fit drive belt to
pulleys.
5.Fit underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
6.Fit engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
7.Connect battery earth lead.
M30 1142
Page 382 of 1007

MANIFOLDS & EXHAUST SYSTEMS - K SERIES KV6
REPAIRS 30-3-9
Gasket - exhaust manifold - RH - Non
NAS
$% 30.15.16
Remove
1.Disconnect battery earth lead.
2.Release RH HO2S multiplug from coolant rail
bracket and disconnect multiplug.
3.Remove bolt securing upper RH engine steady
to top arm.
4.Loosen bolt securing upper RH engine steady
to body, pivot engine steady away from top
arm.
5.Raise vehicle on a ramp.
6.Remove underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
7.Remove exhaust front pipe.
+ MANIFOLDS & EXHAUST SYSTEMS
- K SERIES KV6, REPAIRS, Front pipe - Non
NAS.8.Remove bolt securing lower engine steady to
sump mounting bracket.
9.Loosen bolt securing lower engine steady to
subframe, pivot steady away from sump
mounting bracket.
10.Remove cable tie and release gear selector
cable from clip on body.
11.Remove 2 bolts securing IRD heat shield to
lower engine steady mounting bracket.
12.Remove nut securing heat shield to IRD pinion
housing.
13.Remove nut securing heat shield to IRD
housing and remove heat shield.
M30 0996
M12 6597
Page 383 of 1007

MANIFOLDS & EXHAUST SYSTEMS - K SERIES KV6
30-3-10 REPAIRS
14.Remove 4 nuts securing RH exhaust manifold
to cylinder head.
15.Remove exhaust manifold, remove and discard
gasket.
Refit
1.Clean exhaust manifold and mating face on
cylinder head.
2.Fit new exhaust manifold gasket, position
exhaust manifold, fit nuts and tighten to 45 Nm
(33 lbf.ft).
3.Position heat shield to IRD unit.
4.Fit nut securing heat shield to IRD housing and
tighten to 45 Nm (33 lbf.ft).
5.Fit nut securing heat shield to IRD pinion
housing and tighten to 25 Nm (18 lbf.ft).
6.Fit 2 bolts securing heat shield to lower engine
steady mounting bracket and tighten to 9 Nm (7
lbf.ft).
7.Fit gear selector cable in body clip and secure
with cable tie.
8.Position lower engine steady to sump
mounting, fit and tighten bolt to 100 Nm (74
lbf.ft).
9.Tighten bolt securing lower engine steady to
subframe to 100 Nm (74 lbf.ft).
10.Fit exhaust front pipe.
+ MANIFOLDS & EXHAUST SYSTEMS
- K SERIES KV6, REPAIRS, Front pipe - Non
NAS.
11.Fit underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
12.Lower vehicle on ramp.
13.Connect RH HO2S multiplug, secure multiplug
in coolant rail bracket.
14.Position upper RH engine steady to top arm, fit
and tighten bolt to 100 Nm (74 lbf.ft).
15.Tighten bolt securing upper RH engine steady
to body to 100 Nm (74 lbf.ft).
16.Connect battery earth lead.
Gasket(s) - exhaust manifold - RH - KV6 -
NAS
$% 30.15.16
Remove
1.Disconnect battery earth lead.
2.Remove RH catalytic converter.
+ EMISSION CONTROL, REPAIRS,
Catalytic converter - RH - KV6 - NAS.
3.Remove 4 nuts securing exhaust manifold to
cylinder head, remove manifold and discard
gasket.
Refit
1.Clean exhaust manifold and mating face.
2.Using new gasket, fit exhaust manifold and
tighten nuts to 45 Nm (33 lbf.ft).
3.Fit RH catalytic converter.
+ EMISSION CONTROL, REPAIRS,
Catalytic converter - RH - KV6 - NAS.
4.Connect battery earth lead.
Page 384 of 1007

MANIFOLDS & EXHAUST SYSTEMS - K SERIES KV6
REPAIRS 30-3-11
Gasket - exhaust manifold - LH - Non
NAS
$% 30.15.17
Remove
1.Disconnect battery earth lead.
2.Remove engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
3.Release HO2S multiplug from support bracket
on LH camshaft cover, disconnect multiplug.
4.Raise vehicle on ramp.
5.Remove underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
6.Remove 2 nuts securing front exhaust pipe to
manifold flange.
7.Lower vehicle on ramp.8.Release HO2S lead from clip on cylinder block.
Remove 4 nuts securing exhaust manifold to
cylinder head, remove manifold and discard
gasket.
Refit
1.Clean exhaust manifold and mating face on
cylinder head.
2.Fit new exhaust manifold gasket to cylinder
head.
3.Position exhaust manifold to cylinder head, fit
and tighten nuts to 45 Nm (33 lbf.ft).
4.Raise vehicle on ramp.
5.Position LH exhaust manifold flange to front
pipe, fit and tighten nuts to 50 Nm (37 lbf.ft).
6.Secure HO2S lead in clip on cylinder block.
7.Fit underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
8.Lower vehicle on ramp.
9.Connect HO2S multiplug and secure to support
bracket.
10.Fit engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
11.Connect battery earth lead.
Page 385 of 1007
MANIFOLDS & EXHAUST SYSTEMS - K SERIES KV6
30-3-12 REPAIRS
Gasket(s) - exhaust manifold - LH - NAS
$% 30.15.17
Remove
1.Position vehicle on 4 post ramp.
2.Disconnect battery earth lead.
3.Remove engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
4.Remove underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
5.Using a 3/8" socket bar raise ancillary drive belt
tensioner and release drive belt from alternator
and PAS pump pulleys.
6.Remove 3 bolts securing A/C compressor to
fixing brackets and position compressor aside.
7.Remove compressor heat shield.8.Release and disconnect HO2S multiplug.
9.Release HO2S harness from clip.
10.Release and disconnect post catalyst HO2S
multiplug.
11.Release HO2S harness from clips.
12.Remove 2 nuts securing exhaust front pipe to
exhaust manifold.
M30 1142
M19 3505
M19 3481
Page 386 of 1007

MANIFOLDS & EXHAUST SYSTEMS - K SERIES KV6
REPAIRS 30-3-13
13.Remove 4 nuts securing manifold and remove
exhaust manifold.
14.Remove and discard manifold and down pipe
gaskets.
Refit
1.Clean exhaust manifold and mating faces.
2.Using new gaskets, fit exhaust manifold and
tighten nuts to cylinder head to 45 Nm (33 lbf.ft)
and nuts to front pipe to 50 Nm (37 lbf.ft).
3.Connect H02S multiplugs, secure multiplugs to
brackets and harness to clips.
4.Clean compressor and mounting bracket
mating faces.
5.Fit compressor heat shield.
6.Position compressor to mounting and align
heat shield. Fit and tighten bolts to 25 Nm (18
lbf.ft).
7.Using a 3/8" square drive socket bar, raise
ancillary drive belt tensioner and fit drive belt to
pulleys.
8.Fit underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
9.Fit engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
10.Connect battery earth lead.
Seals - inlet manifold chamber - up to
03MY
$% 30.15.37
Remove
1.Disconnect battery earth lead.
2.Remove vacuum enhancer.
+ BRAKES, REPAIRS, Vacuum -
enhancer - KV6.
3.Position absorbent cloth around fuel feed pipe
connection to collect spillage.
WARNING: The spilling of fuel is
unavoidable during this operation. Ensure
that all necessary precautions are taken to
prevent fire and explosion.
4.Pull back rubber sleeve on fuel pipe connector,
release connector and disconnect fuel pipe
from fuel rail pipe.
CAUTION: Always fit plugs to open
connections to prevent contamination.