Page 263 of 1007

ENGINE - K SERIES KV6
12-3-86 OVERHAUL
10.Apply a continuous bead of sealant, Part No.
STC 50550, to paths on lower crankcase as
shown then spread to an even film using a
roller.
CAUTION: To avoid contamination,
assembly must be completed immediately
after application of sealant.
11.Fit 2 M8 slave guide studs into cylinder block at
positions shown.
12.Position lower crankcase to cylinder block.13.Fit and lightly tighten 6 M8 bolts, remove guide
studs, fit and lightly tighten 2 remaining M8
bolts.
14.Using sequence shown, tighten bolts to 25 Nm
(18 lbf.ft).
15.Fit and tighten remaining M8 bolt to 25 Nm (18
lbf.ft).
16.Fit 2 rear M6 bolts and tighten to 9 Nm (7 lbf.ft).
17.Clean oil pick-up strainer and mating face.
18.Lubricate new 'O' ring with clean engine oil and
fit to pick-up strainer.
CAUTION: Ensure 'O' ring, Part No. LYX
000210L is used.
19.Apply sealant, Part No. STC 50552 to threads
of oil pick-up strainer retaining bolt.
20.Position oil pick-up strainer, fit and tighten bolt
to 25 Nm (18 lbf.ft).
21.Clean oil pump, oil seal recess in oil pump body
and mating face on cylinder block, ensure bolt
holes are clean and dry.
22.Clean oil seal running surface on crankshaft.
Page 264 of 1007

ENGINE - K SERIES KV6
OVERHAUL 12-3-87
Refit
1.Fit oil pump gasket.
+ ENGINE - K SERIES KV6,
OVERHAUL, Oil pump - Overhaul.
2.Fit engine sump.
+ ENGINE - K SERIES KV6,
OVERHAUL, Sump - engine oil.
3.Fit crankshaft rear oil seal.
+ ENGINE - K SERIES KV6,
OVERHAUL, Crankshaft rear oil seal.
4.Rotate crankshaft until timing pin LRT-12-232
can be inserted through hole immediately
adjacent to side of lower crankcase and into
elongated hole in drive plate.
CAUTION: Ensure that pin is in elongated
hole. Do not use cast arrow on oil pump
body as a timing mark. Do not remove
timing pin until timing belts are fitted.
5.Fit cylinder head gaskets.
+ ENGINE - K SERIES KV6,
OVERHAUL, Cylinder head gasket - LH.
+ ENGINE - K SERIES KV6,
OVERHAUL, Cylinder head gasket - RH.
Cylinder head gasket - LH
$% 12.29.02.01
Remove
1.Remove and discard camshaft timing belt.
+ ENGINE - K SERIES KV6,
OVERHAUL, Camshaft timing belt.
2.Remove inlet manifold chamber.
+ MANIFOLDS & EXHAUST SYSTEMS
- K SERIES KV6, OVERHAUL, Seals -
manifold chamber - up to 03MY.
3.Remove 4 bolts securing LH front camshaft
timing belt cover backplate to cylinder head and
remove backplate.
4.Release HO2S lead from clip on cylinder block.
5.Using sequence shown, loosen then remove 4
nuts securing exhaust manifold to cylinder
head. Remove manifold, remove and discard
gasket.
6.Remove LH camshaft cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Camshaft cover gasket - LH - Up to 03MY.
LRT-12-232
M12 7927
Page 266 of 1007

ENGINE - K SERIES KV6
OVERHAUL 12-3-89
13.Using sequence shown, progressively loosen
and remove 8 cylinder head bolts.
14.Remove cylinder head.
CAUTION: Support both ends of cylinder
head on blocks of wood.
15.Remove and discard cylinder head gasket.
CAUTION: Do not rotate crankshaft with RH
cylinder head fitted.
16.Fit cylinder liner clamps LRT-12-144 and
secure with cylinder head bolts.
CAUTION: Ensure that feet of clamps do not
protrude over bores.Refit
1.Clean cylinder head face.
CAUTION: Use suitable gasket removal
spray and a plastic scraper.
2.Remove bolts securing cylinder liner clamps
LRT-12-144 to cylinder block and remove
clamps.
CAUTION: Do not rotate crankshaft.
3.Clean cylinder block face and dowel holes.
4.Clean cylinder head bolts and wipe dry.
5.Lightly lubricate threads and beneath heads of
cylinder head bolts with clean engine oil.
6.Check that fitted height of dowels is between 10
to 11 mm (0.40 to 0.43 in) above cylinder block
top face. Replace dowels if fitted height is
incorrect.
7.Fit new cylinder head gasket onto cylinder
block with the word 'TOP' uppermost.
8.With assistance, fit cylinder head and carefully
position LH inlet to RH inlet manifold.
9.Carefully enter cylinder head bolts, DO NOT
DROP. Screw bolts into place by hand.
Page 267 of 1007

ENGINE - K SERIES KV6
12-3-90 OVERHAUL
10.Tighten cylinder head bolts progressively in the
sequence shown to:
lStage 1 - 25 Nm (18 lbf.ft)
lStage 2 - 25 Nm (18 lbf.ft)
lStage 3 - 25 Nm (18 lbf.ft)
lStage 4 - Using an angle torque gauge,
tighten a bolts in same sequence a further
180°
11.Fit LH camshaft cover gasket.
+ ENGINE - K SERIES KV6, REPAIRS,
Camshaft cover gasket - LH - Up to 03MY.
12.Remove and discard 'O' rings from injectors.
13.Clean injectors and injector locations in fuel rail.
14.Lubricate new 'O' rings with castor oil and fit to
injectors.
15.Position fuel rail assembly and secure injectors
to inlet manifolds.
16.Position injector protection cover - if fitted to RH
fuel rail and secure injector harness to
protection cover or fuel rail with clips.
17.Fit bolts securing fuel rail to inlet manifolds and
tighten to 9 Nm (7 lbf.ft).
18.Connect coolant bleed hose to inlet manifold
and secure with clip.
19.Connect breather hose to LH inlet manifold.
20.Position ignition coils to LH inlet manifold.
21.Position earth lead, fit nuts and bolts securing
ignition coils to LH inlet manifold and tighten to
9 Nm (7 lbf.ft).
22.Clean camshaft drive belt cover backplate bolts
and apply sealant, Part No. STC 50552 to first
3 threads.
23.Position backplate, fit and tighten bolts to 9 Nm
(7 lbf.ft).
24.Clean exhaust manifold and cylinder head
mating face.25.Fit new exhaust manifold gasket. Position
exhaust manifold, fit nuts and using sequence
shown, tighten to 45 Nm (33 lbf.ft).
26.Secure HO2S lead in clip on cylinder block.
27.Connect HO2S multiplug and secure to support
bracket.
28.Fit new camshaft timing belt.
+ ENGINE - K SERIES KV6,
OVERHAUL, Camshaft timing belt.
Page 268 of 1007
ENGINE - K SERIES KV6
OVERHAUL 12-3-91
Cylinder head gasket - RH
$% 12.29.03.01
Remove
1.Remove inlet manifold chamber.
+ MANIFOLDS & EXHAUST SYSTEMS
- K SERIES KV6, OVERHAUL, Seals -
manifold chamber - up to 03MY.
2.Remove and discard camshaft timing belt.
+ ENGINE - K SERIES KV6,
OVERHAUL, Camshaft timing belt.
3.Release RH HO2S multiplug from coolant rail
bracket and disconnect multiplug.
4.Using sequence shown, loosen then remove 4
nuts securing RH exhaust manifold to cylinder
head.
5.Remove exhaust manifold, remove and discard
gasket.6.Remove 4 bolts securing RH front timing belt
cover backplate to cylinder head and remove
backplate.
7.Remove RH camshaft cover gasket.
+ ENGINE - K SERIES KV6, REPAIRS,
Camshaft cover gasket - RH.
8. Up to 03MY: Remove 3 nuts and 3 bolts
securing ignition coils to LH inlet manifold and
release coil earth lead.
9. Up to 03MY:Remove ignition coils and position
aside.
M30 0996
Page 270 of 1007

ENGINE - K SERIES KV6
OVERHAUL 12-3-93
18.Fit cylinder liner clamps LRT-12-144 and
secure with cylinder head bolts.
CAUTION: Ensure that feet of clamps do not
protrude over bores.
Refit
1.Clean cylinder head face.
CAUTION: Use suitable gasket removal
spray and a plastic scraper.
2.Remove bolts securing cylinder liner clamps
LRT-12-144 to cylinder block and remove
clamps.
CAUTION: Do not rotate crankshaft.
3.Clean cylinder block face, dowels and dowel
holes.
4.Clean cylinder head bolts and wipe dry.
5.Lightly lubricate threads and beneath heads of
cylinder head bolts with clean engine oil.6.Check that fitted height of dowels is between 10
to 11 mm (0.40 to 0.43 in) above cylinder block
top face. Replace dowels if fitted height is
incorrect.
7.Fit new cylinder head gasket onto cylinder
block with the word 'TOP' uppermost.
8.With assistance, fit cylinder head and carefully
position RH inlet to LH inlet manifold.
9.Carefully enter cylinder head bolts, DO NOT
DROP. Screw bolts into place by hand.
10.Using sequence shown, tighten cylinder head
bolts progressively to:
lStage 1 - 25 Nm (18 lbf.ft)
lStage 2 - 25 Nm (18 lbf.ft)
lStage 3 - 25 Nm (18 lbf.ft)
lStage 4 - Further 180°
11.Fit RH camshaft cover gasket.
+ ENGINE - K SERIES KV6, REPAIRS,
Camshaft cover gasket - RH.
12.Remove and discard lower 'O' rings from
injectors.
13.Clean injectors and injector locations in fuel rail.
14.Lubricate new 'O' rings with castor oil and fit to
injectors.
15.Position fuel rail assembly and secure injectors
to inlet manifolds.
Page 271 of 1007

ENGINE - K SERIES KV6
12-3-94 OVERHAUL
16.Position injector protection cover - if fitted to RH
fuel rail and secure injector harness to
protection cover or fuel rail with clips.
17.Fit bolts securing fuel rail to inlet manifolds and
tighten to 9 Nm (7 lbf.ft).
18.Connect coolant bleed hose to inlet manifold
and secure with clip.
19. Up to 03MY:Position ignition coils to LH inlet
manifold.
20. Up to 03MY:Position earth lead, fit nuts and
bolts securing ignition coils to LH inlet manifold
and tighten to 9 Nm (7 lbf.ft).
21.Clean camshaft timing belt cover backplate
bolts and apply sealant, Part No. STC 50552 to
the first 3 threads.
22.Position backplate, fit and tighten bolts to 9 Nm
(7 lbf.ft).
23.Fit new camshaft timing belt.
+ ENGINE - K SERIES KV6,
OVERHAUL, Camshaft timing belt.
24.Clean exhaust manifold and mating face on
cylinder head.
25.Fit new exhaust manifold gasket. Position
exhaust manifold, fit nuts and using sequence
shown, tighten to 45 Nm (33 lbf.ft).
26.Connect RH HO2S multiplug, secure multiplug
in coolant rail bracket.
Cylinder head - decarbonise
$% 12.29.19
Remove
1.Remove cylinder head gaskets.
+ ENGINE - K SERIES KV6,
OVERHAUL, Cylinder head gasket - LH.
+ ENGINE - K SERIES KV6,
OVERHAUL, Cylinder head gasket - RH.
Disassembly
1. LH Cylinder head: Remove 3 bolts securing
LH rear timing belt cover and remove cover.
2. RH Cylinder head: Remove 2 bolts securing
RH rear timing belt cover heat shield to cylinder
head.
3. RH Cylinder head:Remove 3 bolts securing
RH rear timing belt cover; remove cover.
M12 6880
M12 6694
Page 273 of 1007

ENGINE - K SERIES KV6
12-3-96 OVERHAUL
12.Check end-float of camshafts using a DTI.
+ GENERAL DATA, Engine - KV6
Petrol.
CAUTION: If camshaft end-float exceeds
limits given, repeat check with new
camshaft(s). If end-float is still excessive,
replace cylinder head and camshaft carrier
as an assembly.
13.Using sequence shown, progressively loosen
22 bolts securing camshaft carrier to cylinder
head until valve spring pressure is released
and remove bolts.
14.Remove camshaft carrier.15.Remove camshafts and discard oil seals.
Note: Inlet camshafts are colour coded orange,
exhaust camshafts
16.Using a stick magnet, remove 12 hydraulic
tappets from cylinder head.
CAUTION: Store hydraulic tappets in their
fitted order and store upright. Maintain
absolute cleanliness when handling
hydraulic tappets. Failure to observe these
precautions can result in engine failure.
17.Measure the outside diameter of hydraulic
tappets.
+ GENERAL DATA, Engine - KV6
Petrol.
Note: Measurement must be taken half-way
along tappet body.
18.Using LRT-12-034, and adapter LRT-12-034/1,
compress valve spring, remove 2 collets,
release valve spring and remove LRT-12-034.
19.Remove valve spring cap and valve spring.
20.Remove valve from cylinder head.