LAMBORGHINI MURCIÉLAGO 2009 Service Repair Manual
Page 231 of 1173
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Fig.6
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
' X U L Q J W K H D V V H P E O \
15. Install P/N 961195027 liner-stop on the concerned liner to prevent it from moving.
16. Insert the connecting rod-piston assembly in the crankcase, checking that:
• 7 K H F R Q Q H F W L Q J U R G E H D G V I D F H W K H F U D Q N V K D I W V K R X O G H U V
• The numbers printed on the connecting rods caps correspond to the numbers printed on the
connecting rod small end.
17. Apply Molycote 1000 on the threads and on the striking surface of the connecting rod cap bolts and tighten the
bolts; Tightening torque (000800-2a).
18. Then tighten to angle check.
7 L J K W H Q L Q J Y D O X H V D
• Oil pump assemble (011505)
•Timing system chain assemble (019005)
• Assemble the oil draft pipe
• Assemble the oil pan
• Timing system cover assemble (019005)
• Assemble the front crankshaft pulley
•Rear differential assemble (050905)
• Head assemble (010305)
• Alternator, power steering pump and air conditioning system compressor frame assemble.
• Air intake manifold assemble (012905)
• Exhaust manifolds assemble (025105)
• Silencer and exhaust terminals assemble (025105)
• Gearbox assemble (030105)
• Thermostatic valve assemble (012105)
• Engine assemble (010005)
Page 232 of 1173
1
L824 01 07 00
Fig.1
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
Rated diameter 88.00 ± 0.015
Height ha 12
' L D P H W H U D 88.00 ± 0.015
Height hb 60
' L D P H W H U E 88.00 ± 0.015
/ L Q H U S U R W U X V L R Q I U R P F U D Q N F D V H H G J H V 0.04 ÷ 0.08
(with liner-stop pre-load P=30 N) 0 D [ L P X P W D S H U 0.04
0 D [ L P X P R Y D O L ] D W L R Q 0.03
Surface roughness 0.3 micron
Concentricity 0.08
Page 233 of 1173
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L824 01 07 00
Fig.2
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
Rated diameter 88.00
Total height H 46
3 L V W R Q F U R Z Q S L V W R Q S L Q D [ L V K H L J K W + 28.00 ± 0.05
3 L V W R Q S L Q D [ L V O R Z H U H G J H K H L J K W + 18.00 ± 0.2
Step I slot height h 6.95 ± 0.1
I slot height a 1.2 ± 0.05
II slot height b 1.5 ± 0.04
III slot height c 2 ± 0.03
3 L V W R Q S L Q G L D P H W H U 19.995 ÷ 20.000
3 L V W R Q S L Q V H D W G L D P H W H U 20.010 ÷ 20.016
3 L V W R Q S L Q S L V W R Q F O H D U D Q F H 0.010 ÷ 0.020
Pistons must always be coupled with liners belonging to the same group. Pistons and liners belonging to the same
engine must all be of the same group.
Page 234 of 1173
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L824 01 07 00
Fig.3
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
SLOT I
Height s 1.20
Thickness b 3.70 ÷ 3.45
Gap between ends 0.20 ÷ 0.40 (*)
Slot-piston ring clearance 0.040 ÷ 0.075 SLOT II
Height s 1.50
Thickness b 3.70 ÷ 3.45
Gap between ends 0.30 ÷ 0.50 (*)
Slot-piston ring clearance 0.020 ÷ 0.062
Diameter b SLOT III
Height s 1.08
Thickness b 3.00 ÷ 2.75
Gap between ends 0.25 ÷ 0.50 (*)
Slot-piston ring clearance 0.020 ÷ 0.055
P H D V X U H G Z L W K S L V W R Q U L Q J ¿ W W H G L Q W K H O L Q H U
Page 235 of 1173
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L824 01 07 03
Fig.1
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
3 L V W R Q F R Q Q H F W L Q J U R G D V V \ ± ' L V D V V H P E O H D Q G
1. Remove the clips from the piston races.
2. Extract the piston pin.
3. Remove the bushings from the connecting rod head and cap.
Page 236 of 1173
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L824 01 07 05
Fig.1
A
Fig.2
B
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
3 L V W R Q F R Q Q H F W L Q J U R G D V V \ $ V V H P E O H
1 2 7 (The piston INTAKE side is shown by the arrow (in case of a new piston)(
$ ) L J ); anyway this side is the one
with bigger valve seats.
1. Insert the connecting rod into the piston so that the bushing insertion mark in the connecting rod big end faces
the piston intake side ( % ) L J ).
2. Lock the piston in the vice.
: $ 5 1 , 1 *
8 V H D G H T X D W H S U R W H F W L Y H G H Y L F H V W R V H F X U H W K H S L V W R Q L Q W K H Y L F H W R S U H Y H Q W G D P D J H W R W K H F R Q Q H F W L Q J rod.
Page 237 of 1173
2
L824 01 07 05
Fig.3 Fig.4
C ' (
1 2 3
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
3. , Q V H U W W K H ¿ U V W V F U D S H U U L Q J L Q Q H U F O L S L Q W R W K H O R Z H U U D F H & ) L J ).
4. Insert the scraper ring outer part on the clip ( ' ) L J ).
5. Insert the second inner clip on the scraper ring ( ( ) L J ).
: $ 5 1 , 1 *
The scraper ring teeth must face downwards (Fig.4).
Page 238 of 1173
1
L824 01 09 00
Fig.1
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
Tappet housing diameter (a-Fig.1) 33.015 ÷ 33.030
Intake valve seat housing diameter ( b-Fig.1) 36.350 ÷ 36.370
Exhaust valve seat housing diameter ( c-Fig.1) 32.550 ÷ 32.570
Intake and exhaust valve guide housing diameter ( d-Fig.1) 12.00 ÷ 12.018
, Q W D N H Y D O Y H V H D W V
Rated inner diameter 32.500 ÷ 32.530
Rated outer diameter 36.490 ÷ 36.510
Contact band angle 45°
( [ K D X V W Y D O Y H V H D W V
Rated inner diameter 27.470 ÷ 27.530
Rated outer diameter 32.690 ÷ 32.710
Contact band angle 45°
, Q W D N H D Q G H [ K D X V W Y D O Y H J X L G H
Rated outer diameter 12.040 ± 12.050
Inner diameter with pressed and bored guide 6.015
Page 239 of 1173
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L824 01 09 00
Fig.2
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
, Q W D N H Y D O Y H V Stem diameter (d-Fig.2) 5.95 ± 0.02
Reduced stem diameter ( d1-Fig.2) 4.59 ± 0.05
Valve head diameter ( ' ) L J ) 35.40 ± 0.1
Valve seat angle 44°50’ ± 10’Height ( h-Fig.2) 104.90 ± 0.15
Tappets support thickness ( s-Fig.2) 4.70
( [ K D X V W Y D O Y H VStem diameter ( d-Fig.2) 5.92 ± 0.02
Valve head diameter ( ' ) L J ) 30.20 ± 0.1
Valve seat angle 44°50’ ± 10’Height ( h-Fig.2) 104.01 ± 0.15
Tappets support thickness ( s-Fig.2) 4.70
Tappets
Diameter 32.974 ÷ 32.990
Washer thickness range 3.25 ÷ 0.70
with intervals of 0.05
9 D O Y H V W H P J X L G H ¿ W W L Q J
Intake system assembly clearance 0.025 ÷ 0.055
Exhaust system assembly clearance 0.035 ÷ 0.065 0 D [ L P X P V K L I W E H W Z H H Q Y D O Y H V W H P D Q G K H D G (head-stem concentricity)
Intake 0.03
Exhaust 0.03
Assembly clearance between tappet and its seat (intake-exhaust) 0.025 ÷ 0.071
Page 240 of 1173
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L824 01 09 00
Fig.3
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
Inner spring Free length (a-Fig.3) 44
With closed valve ( b-Fig.3) 31
With open valve ( c-Fig.3) 19
Compressed ( d-Fig.3) 16.25
Load (with closed valve) ( 3 ) L J ) 13 ± 0.5 Kg
Load (with open valve) ( 3 ) L J ) 25.5 ± 1.2 Kg
Number of active coils 5
Outer springFree length ( a-Fig.3) 41
With closed valve ( b-Fig.3) 33
With open valve ( c-Fig.3) 21
Compressed ( d-Fig.3) 16.5
Load (with closed valve) ( 3 ) L J ) 16 ± 0.5 Kg
Load (with open valve) ( 3 ) L J ) 41.2 ± 1.2 Kg
Number of active coils 3.5