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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
Cylinder head bolts (*)
1st pre-tightening1,5 ± 0,1
122nd pre-tightening5 ± 0,5
Angular slackening360°
Tightening2 ± 0,2
Angular tightening285° ± 5°
Valve cover screws (*)
13Pre-tightening0,5
Tightening1,1 ± 0,1
14 Sparking plugs 2,7 ± 0,2
Camshaft bearing cap cover screws (*)
15Pre-tightening0,5
Tightening1,1 ± 0,1
16 Valve for injection of air to the exhaust 0,9 ± 0,2
Engine: RFK
B1BP35QP
(*) = IMPERATIVE: Respect the tightening sequence (see following page).
C4
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Page 94 of 462
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engine: RFK
B1DP03XDB1DP05BC
IMPERATIVE: Respect the tightening sequence.
Cylinder head
(12) Valve cover screws
(13) Cylinder head bolts(15) Camshaft bearing cap screws
C4
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ENGINE
91
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engine: RFK
B1GP08WCB1DP05BC
IMPERATIVE: Respect the tightening sequence.
Cylinder head
(21) Crankshaft bearing cap screws
(23) Con rod cap screws(20) Flywheel screws(18) Coolant pump screws
B1CP0GCC
C4
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engines 8HX 8HZ
Crankshaft
Bearing cap fixing screws
Pre-tightening1
SlackeningYES
Tightening3
Angular tightening140°
Con rod nuts
Pre-tightening1
SlackeningYES
Tightening1,5 ± 0,1
Angular tightening100° ± 5°
Accessories drive pulley
Pre-tightening3 ± 0,4
Angular tightening180° ± 5°
Cylinder blocks
Sump1 ± 0,1
Timing belt guide roller 4,5 ± 0,4 3,7 ± 0,4
Timing belt tensioner roller 3 ± 0,3 2,3 ± 0,3
XSARA
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engines8HX - 8HZ
Diesel injection circuit
Spherical-base screws for diesel injection fixing fork 0,3 ± 0,1
Fuel high pressure common injection rail on engine block 2 ± 0,2
Unions on fuel high pressure common injection rail
Pre-tightening1,7± 0,2
Tightening2,25 ± 0,2
Diesel injection pump on support
Union on diesel injection pump2,25 ± 0,2
Diesel injection pump pulley5 ± 0,5
Union on diesel high pressure pump 2,25 ± 0,2
Cooling circuit
Coolant pump
Pre-tightening0,3 ± 0,06
Tightening1 ± 0,1
Coolant outlet housing
Pre-tightening0,3 ± 0,06
Tightening0,7 ± 0,08
XSARA
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
1 Air inlet manifold 1 ± 0,1
2 Oil trap 1 ± 0,1
Camshaft bearing covers
3Pre-tightening0,5 ± 0,1
Tightening1 ± 0,1
Engine: 9HY
B1BP39YPB1DP1D7D
(3) Camshaft bearing cover screws
(4) Camshaft bearing cover studs
C4
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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder block
Coolant pump
14Pre-tightening0,3 ± 0,1
Tightening0,9 ± 0,1
Con rod screws
15Pre-tightening1 ± 0,1
Angular tightening100° ± 5°
Flywheel (according to equipment)
16Pre-tightening1,7 ± 0,2
Angular tightening75°±5°
Clutch mechanism 2 ± 0,2
Engine: 9HX
B1DP1LKPB1CP0GKC
(16) Sequence for tightening the flywheel screws
C4
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder block
Bearing cap fixing screws
Pre-tightening1 ± 0,2
17Slackening180°
Tightening3 ± 0,3
Angular tightening140° ± 5°
18 Crankshaft bearing cap cover screws 0,8 ± 0,3
Crankshaft bearing cap cover screws
19Pre-tightening0,6 ± 0,2
Tightening0,8 ± 0,3
Accessories drive pulley
20Pre-tightening3,5 ± 0,4
Angular tightening190° ± 5°
Engine: 9HX
B1DP1LKP
C4
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