Page 249 of 1007
ENGINE - K SERIES KV6
12-3-72 REPAIRS
9.Position LRT-12-197 into the front end of the
LH exhaust camshaft.
10.With assistance, using a 30 mm socket on LRT-
12-197, turn the LH exhaust camshaft
sufficiently to align camshaft gears to the drive
slots in each camshaft.
11.Remove LRT-12-198 alignment pins and fit
new camshaft gear retaining bolts.
12.Tighten camshaft gear bolts to:
lStage 1 - 27 Nm (20 lbf.ft)
lStage 2 - Further 90°
13.Remove LRT-12-175 from camshaft gears.
14.Remove LRT-12-197 from front end of exhaust
camshaft.15.Clean LH exhaust camshaft cap seal recess
and fit new cap seal.
16.Remove timing pin LRT-12-232 from lower
crankcase.
17.Fit splash shield and secure with bolts.
18.Fit RH road wheel and tighten nuts to 115 Nm
(85 lbf.ft).
19.Fit LH rear timing belt cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Camshaft timing belt cover - LH rear.
20.Fit underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
21.Connect battery earth lead.
Page 250 of 1007

ENGINE - K SERIES KV6
REPAIRS 12-3-73
Camshaft rear timing belt - RH cylinder
head
$% 12.65.57
Remove
1.Disconnect battery earth lead.
2.Remove underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
3.Remove RH front road wheel.
4.Remove 3 bolts securing RH splash shield to
body and remove shield.
5.Remove RH rear timing belt cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Camshaft timing belt cover - RH rear.6.Using a socket on crankshaft pulley bolt, rotate
crankshaft in a clockwise direction. Align the
engine "SAFE" position, notch on crankshaft
pulley aligned to the "ARROW" on front
mounting plate and the timing marks aligned on
the rear camshaft gears as illustrated.
CAUTION: Do not use camshaft gear bolts
or timing belt to rotate crankshaft. Never
use the arrow on the oil pump body as a
timing reference.
7.Insert timing pin LRT-12-232 through hole in
lower crankcase, ensuring pin is located in hole
in drive plate.
CAUTION: Hole immediately adjacent to
side of lower crankcase must be used.
M12 6614
LRT-12-232
M12 7927
Page 251 of 1007

ENGINE - K SERIES KV6
12-3-74 REPAIRS
8.Remove and discard RH front exhaust
camshaft cap seal from cylinder head.
9.Position LRT-12-175 to rear camshaft gears as
illustrated, remove and discard bolts securing
gears to camshafts.
10.Remove rear camshaft gears, timing belt and
special tool as an assembly.
CAUTION: Do not turn the crankshaft or the
camshafts while the timing belt is removed.
11.If camshaft timing belt is to be refitted, mark
direction of rotation on timing belt.12.Remove LRT-12-175 from camshaft gears and
remove timing belt from gears.
CAUTION: Camshaft timing belts must be
stored and handled with care. Always store
a camshaft timing belt on its edge with a
bend radius greater than 50 mm (2.0 in). Do
not use a camshaft timing belt that has been
twisted or bent double as this will damage
the reinforcing fibres. Do not use a
camshaft timing belt if debris other than belt
dust is found in timing belt covers. Do not
use a camshaft timing belt if partial engine
seizure has occurred. Do not use a
camshaft timing belt if mileage exceeds
72,000 km (45,000 miles). Do not use an oil
or coolant contaminated timing belt, cause
of contamination must be rectified.
Page 252 of 1007

ENGINE - K SERIES KV6
REPAIRS 12-3-75
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 mating faces on
camshafts.
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.Place gears inverted on a flat surface, with the
locating lugs on the gears positioned as
illustrated.3.Keeping the timing marks aligned, position
timing belt onto gears.
4.Position LRT-12-195 between the gears, turn
centre nut sufficiently to spread drive belt.
5.Invert gears and timing belt and position LRT-
12-175 to camshaft gears.
6.Check that the locating lugs are correctly
aligned and remove LRT-12-195 from between
camshaft gears.
Page 253 of 1007

ENGINE - K SERIES KV6
12-3-76 REPAIRS
7.Fit LRT-12-198 alignment pins into the end of
each camshaft.
8.Position timing belt and gears over LRT-12-198
and locate gears onto camshafts.
9.Position LRT-12-197 into the front end of the
RH exhaust camshaft.
10.With assistance, using a 30 mm socket on LRT-
12-197, turn the RH exhaust camshaft
sufficiently to align camshaft gears to the drive
slots in each camshaft.11.Remove LRT-12-198 alignment pins and fit
new camshaft gear retaining bolts.
12.Tighten camshaft gear bolts to:
lStage 1 - 27 Nm (20 lbf.ft)
lStage 2 - Further 90°
13.Remove LRT-12-175 from camshaft gears.
14.Remove LRT-12-197 from front end of exhaust
camshaft.
15.Clean RH exhaust camshaft cap seal recess
and fit new cap seal.
16.Remove timing pin LRT-12-232 from lower
crankcase.
17.Fit splash shield and secure with bolts.
18.Fit RH road wheel and tighten nuts to 115 Nm
(85 lbf.ft).
19.Fit RH rear timing belt cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Camshaft timing belt cover - RH rear.
20.Fit underbelly panel.
+ EXTERIOR FITTINGS, REPAIRS,
Panel - underbelly.
21.Connect battery earth lead.
Page 254 of 1007

ENGINE - K SERIES KV6
OVERHAUL 12-3-77
OVERHAUL
Piston assemblies - engine set
$% 12.17.03.01
Disassembly
1.Remove crankshaft.
+ ENGINE - K SERIES KV6,
OVERHAUL, Crankshaft.
2.Remove LRT-12-144 cylinder liner clamps from
cylinder block.
3.Suitably identify each cylinder liner to its fitted
position in cylinder block.
4.With assistance, position cylinder block to
enable each piston and cylinder liner to be
removed.
5.Carefully push each piston assembly and
cylinder liner from cylinder block.
CAUTION: Suitably identify each piston with
its respective cylinder liner.6.Remove piston assemblies from liners, keep
liners in their fitted order.
7.Refit caps onto connecting rods, lightly tighten
dowel bolts.
8.Using a suitable expander, remove and discard
piston rings from each piston.
9.Using a squared off end of an old piston ring,
remove carbon from piston ring grooves.
Inspect
1. Cylinder liner bores: Measure wear and taper
in two axis 65 mm (2.5 in) from top of cylinder
liner bore The cylinder liner grade is marked on
outside diameter of liner.
CAUTION: Cylinder liners with excessively
glazed, worn, scratched or scored bores
must be replaced. DO NOT attempt to hone
or remove glazing from bore. Ensure that if
original liners are to be refitted, reference
marks made during dismantling are not
erased.
Page 255 of 1007

ENGINE - K SERIES KV6
12-3-78 OVERHAUL
2.Cylinder liners have their bore/grade and step
height determined at manufacture. The bore/
grade, red, blue (A) or (B), and step heights V
or Z together with the cylinder liner part number
and colour code are marked on the external
diameter of the cylinder liners. If cylinder(s) are
to be replaced, the replacement liner(s) must
have the same step height as the original
liner(s). Both step heights are available in red
(A) and blue (B) grades of cylinder liners.
+ GENERAL DATA, Engine - KV6
Petrol.
3.Check pistons for distortion and cracks.
NOTE: Piston grades A or B are stamped on
the crown of the piston.
4. Piston diameter check: Measure piston
diameter at right angles to gudgeon pin and 8
mm (0.3 in) from bottom of skirt.
+ GENERAL DATA, Engine - KV6
Petrol.
NOTE: Piston and connecting rods are only
supplied as an assembly.
CAUTION: Ensure pistons are retained with
their respective cylinder liners.
5.Position piston in cylinder liner and measure
clearance 20 mm (0.75 in) from bottom of
cylinder liner.
+ GENERAL DATA, Engine - KV6
Petrol.6. Piston ring gap: Position new top and second
compression piston rings 20 mm (0.75 in) from
top of cylinder bore and measure ring gaps.
+ GENERAL DATA, Engine - KV6
Petrol.
CAUTION: Ensure piston rings are kept
square to liner bore. Retain rings with the
piston fitted to the liner in which they were
checked.
7. Piston rings - refit:Using a suitable expander,
fit oil control spring.
8.With 'TOP' or identification markings to top of
piston, use an expander to fit piston rings in
sequence; oil control, 2nd and top
compression.
NOTE: The second compression ring is
stepped.
M12 6838
Page 256 of 1007

ENGINE - K SERIES KV6
OVERHAUL 12-3-79
9.Ensure rings are free to rotate, position
compression ring gaps A and B at 120° to each
other and away from thrust side. Position oil
control ring gap C and spring gap D at 30° on
opposite side of gudgeon pin axis.
10.Check clearance of each piston ring to its
respective groove.
+ GENERAL DATA, Engine - KV6
Petrol.Reassembly
1.Clean cylinder liners and liner recess in cylinder
block.
2.Lubricate cylinder liner bores, pistons and rings
with clean engine oil, ensure ring gaps are
correctly spaced.
3.Clean bearing shell recesses in connecting
rods and bearing caps.
4.Fit piston ring clamp, LRT-12-204 to each
piston in turn and fit piston to its respective
cylinder liner ensuring that when fitted, arrow
on piston crown will be towards front of engine.
CAUTION: Do not push pistons fully down
bores at this stage.
5.Remove piston ring clamp.
6.Apply a 2.00 mm (0.1 in) thick continuous bead
of sealant, Part No. RTC 3347, around
shoulder of each cylinder liner as shown.
7.Keeping cylinder liner 'square' to cylinder block,
push each liner fully down until shoulder of liner
seats against cylinder block ensuring that the
arrow on the piston is towards front of engine.
8.To prevent cylinder liners from being displaced,
position LRT-12-144 cylinder liner clamps and
secure to cylinder block with cylinder head
bolts. Ensure that feet of clamps do not
protrude over liner bores.
9.Fit crankshaft.
+ ENGINE - K SERIES KV6,
OVERHAUL, Crankshaft.
M12 6839
D
BA
C
M12 6842