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
Page 257 of 1007
ENGINE - K SERIES KV6
12-3-80 OVERHAUL
Crankshaft front oil seal
$% 12.21.14.01
Remove
1.Remove camshaft timing belt.
+ ENGINE - K SERIES KV6,
OVERHAUL, Camshaft timing belt.
2.Remove crankshaft drive gear.
3.Fit thrust button, LRT-12-200/3 to end of
crankshaft.
4.Screw LRT-12-200 into crankshaft front oil
seal.
5.Tighten centre bolt of LRT-12-200 to remove oil
seal.
6.Remove and discard oil seal from LRT-12-200.
7.Remove thrust button from crankshaft.Refit
1.Clean oil seal recess in oil pump and running
surface on crankshaft, ensure bolt holes are
clean and dry.
2.Fit oil seal guide from seal kit, over end of
crankshaft.
3.Position new seal on crankshaft up against oil
pump housing. Drift seal into place using tool
LRT-12-202.
CAUTION: Oil seal must be fitted dry.
4.Remove LRT-12-202 and oil seal guide from
crankshaft.
5.Clean crankshaft gear and wipe end of
crankshaft.
6.Fit drive gear to crankshaft.
7.Fit camshaft timing belt.
+ ENGINE - K SERIES KV6,
OVERHAUL, Camshaft timing belt.
Page 258 of 1007
ENGINE - K SERIES KV6
OVERHAUL 12-3-81
Crankshaft rear oil seal
$% 12.21.20.01
Remove
1.Remove automatic gearbox.
+ AUTOMATIC GEARBOX - JATCO,
REPAIRS, Gearbox - KV6 - with engine and
gearbox removed.
2.Assemble LRT-12-161 to LRT-12-199 and
secure with clamp bolt.
3.Position LRT-12-161 and LRT-12-199 to
crankshaft pulley to restrain crankshaft.
4.With assistance, remove and discard 6 bolts
securing drive plate to crankshaft.
5.Remove drive plate from crankshaft.6.Remove and discard 5 bolts securing
crankshaft rear oil seal housing to cylinder
block.
7.Remove crankshaft rear oil seal.
Refit
1.Clean cylinder block face and oil seal running
surface on crankshaft, ensure bolt holes are
clean and dry.
2.Position oil seal protector, LRT-12-061 to
crankshaft.
3.Position oil seal to crankshaft.
CAUTION: Oil seal must be fitted dry.
Page 259 of 1007
ENGINE - K SERIES KV6
12-3-82 OVERHAUL
4.Fit new Patchlok bolts securing oil seal to
cylinder block and using sequence shown,
tighten to 8 Nm (6 lbf.ft).
5.Remove oil seal protector LRT-12-061.
6.Clean bolt holes in crankshaft using an old
drive plate bolt with two saw cuts at an angle of
45° to the bolt shank.
7.Clean drive plate and mating face of
crankshaft.
8.Position drive plate to crankshaft and fit but do
not tighten new Patchlok bolts.
9.Position LRT-12-161 and LRT-12-199 to
crankshaft pulley to restrain crankshaft.
10.Using sequence shown, tighten to bolts to:
lStage 1 - 25 Nm (18 lbf.ft)
lStage 2 - 100 Nm (74 lbf.ft)
11.Remove special tool from crankshaft pulley,
loosen bolt and remove LRT-12-161 from LRT-
12-199.
12.Fit automatic gearbox.
+ AUTOMATIC GEARBOX - JATCO,
REPAIRS, Gearbox - KV6 - with engine and
gearbox removed.
Crankshaft
$% 12.21.33.01
Remove
1.Remove cylinder head gaskets.
+ ENGINE - K SERIES KV6,
OVERHAUL, Cylinder head gasket - LH.
+ ENGINE - K SERIES KV6,
OVERHAUL, Cylinder head gasket - RH.
2.Remove oil pump gasket.
+ ENGINE - K SERIES KV6,
OVERHAUL, Oil pump - Overhaul.
3.Remove crankshaft rear oil seal.
+ ENGINE - K SERIES KV6,
OVERHAUL, Crankshaft rear oil seal.
4.Remove engine sump.
+ ENGINE - K SERIES KV6,
OVERHAUL, Sump - engine oil.
Disassembly
1.Remove bolt securing oil pick up strainer,
remove strainer and discard 'O' ring.
Page 260 of 1007
ENGINE - K SERIES KV6
OVERHAUL 12-3-83
2.Using sequence shown, remove 8 M8 bolts
securing lower crankcase to cylinder block.
3.Remove remaining M8 bolt and 2 M6 bolts
securing lower crankcase to cylinder block.
4.Remove lower crankcase.
5.Using sequence shown, remove and discard 16
bolts securing bearing ladder to cylinder block.
NOTE: Short length bolts are fitted to the outer
edge of the bearing ladder.
6.Release bearing ladder from dowels and
remove from cylinder block.7.Remove main bearing shells and 2 thrust
washer halves from bearing ladder, keep main
bearing shells in fitted order; discard thrust
washers.
8.Temporarily fit crankshaft pulley bolt.
9.Remove 4 dowel bolts and remove big end
bearing caps from No 1 and No 2 connecting
rods. Keep bearing caps in order.
NOTE: Number stamped below bearing cap
bolt is bearing bore size code. Number
stamped on connecting rod is cylinder number
and letter is weight code.
CAUTION: Do not remove cylinder clamps
LRT-12-144 unless pistons and connecting
rods are to be removed.
10.Release connecting rods from crankshaft.
11.Remove bearing shells from connecting rod
and cap.
12.Rotate crankshaft using pulley bolt, remove
bolts securing remaining connecting rod
bearing caps. Remove bearing caps and
bearing shells from caps. Keep bearing caps in
their fitted order.
M12 6858
M12 6835
