NoteClean the parts and the joint faces before refitting any of them
Refit
- The piston base jets (4) (tightening torque to 1.0 ± 0.1 da.Nm)
- The grooved half-shells (1)
- The side shims (2) - (3) (lubrication grooves (a) on the crankshaft side)
- Determine the thickness of the crankshaft bearing cap bushings
Fit the crankshaft
Position
- The dial gauge support [18]
- The dial gauge support [19]
- The dial gauge [16]
Press axially on the crankshaft in the cylinder block
Set the dial gauge to zero
On the opposite side, press axially on the crankshaft in the cylinder block
The side clearance must be between 0,07 and 0,32 mm
WarningUpper and lower side shims with the same thickness for the same crankshaft surface
Oil
- The crankshaft seatings
- The half bearing shells
Refit
- The half bearing shells
- The main bearing caps (5)
- The side shims (6) (bearing no. 2)
- The bearing cap bolts (5) (without tightening it)
Apply FORMETANCH sealing compound to the corners and ends (b) of main bearing no. 1
Place tool [20] on the cap of bearing no. 1
The shim slide must be in the extension of surface of the bearing cap
Tighten the clamp [20a]
Position the half-shell (7) on the bearing cap
Place the side seals (8) in the groove of the bearing cap with the minimum of projection at (c)
Oil the two surfaces of the shims [20b] on the tool [20] above the heel at (d)
The side seals must have a minimum protrusion of approximately 1 mm
Engage the cap/side seal assembly in the cylinder block, by tilting the assembly
Position the main bearing on the centralising bushes
Tighten the 2 bolts in the bearing cap
Remove the tool [20] sideways
WarningThe new side seals (8) are supplied to the correct length and must not be cut
Tightening (from 1 to 10)
- The cylinders 2.5 ± 0.2
- Angular tightening to 60 ± 5° (using tool [21])
Refit the piston rings (9)
NoteThe surface marked top of the piston rings (9) must face upwards
WarningObserve the direction of the conrod in relation to the piston; position the direction of the arrow (e) etched on the piston, on the timing side; position the direction of the shell bearing stops (f) on the conrod on the oil filter side
Refit
- The stop ring (10)
- The connecting rod (11)
- The shaft (12)
- The stop ring (13)
Check the direction of the gaps (g) - (h) - (j) in the piston rings
Position the piston rings collar [23]
NoteAllow portion (A) of the piston to protrude, in order to provide a guide for it
Fit the half-shells (14) on the conrods (11)
Oil
- The cylinders
- The half bearing shells
Refit the conrods/pistons assemblies by using the fitting ring
WarningPosition the direction of the arrow (e) etched on the piston, on the timing side; observe pairing of the conrods/big end caps
Fit the half-shells conrod caps
Oil the half-bearing shells
Position the conrod caps (15)
WarningObserve pairing of the conrods/big end caps
Fit new bolts (16)
Tightening procedure (bolts (16))
- Tightening torque to 1.0 ± 0.1 da.Nm
- Slacken by 180 degrees
- Tightening torque to 2.3 ± 0.1 da.Nm
- Angular tightening to 45 ± 5° (using tool [21])
NoteUse the cone [22b] to fit the sealing ring on the tool [22a]
Refit the sealing ring using a mallet
Remove the tool [22a]
Fit the 2 bolts in tool [24] diagnonally in place of the 2 bolts
Refit the flywheel (17)
Centralise the engine flywheel using the cones of the tool [24]
Refit the 6 fixing bolts (18) in the engine flywheel (17)
Remove the tool [24]
Refit the last two bolts (18) fixing the engine flywheel (17)
Position the flywheel stop (tool [1])
Tighten the engine flywheel fixing bolts
- Pre-tighten the bolts (18) to 1.5 ± 0.1 dan.m
- Tighten the bolts (18) to 4.7 ± 0.4 m.daN
Remove the tool [1]
Balance shafts
Peg the engine flywheel (using tool [2])
Fit the adjustment 2 spacers [25]
Position the blind holes (k) of the balance shafts upwards
Insert the points Ø 5 mm of the tool [26] in the blind holes (k)
Fit the tool clamp [27] on the tool [26]
Lightly tighten the bolt of tool [27]
Refit the balance shafts ecu (19)
Engage the balance shafts ecu (19) on its centralising pins
Remove
- The tool [27]
- The tool [26]
- The flywheel peg
Refit the 8 bolts (20)
Tighten the 8 bolts (20) to 2.2 ± 0.2 m.daN (follow the order indicated)
Fit the tools [28a] - [28b]
Push the drive shaft to the stop
Set the dial gauge [16] to zero
Push the drive shaft back in the other direction
Measure the clearance
NoteThe clearance should be between 0,03 and 0,20 mm
Remove the tools [14a] - [14b] - [3]
Fit the tools [28a] - [28b] - [16]
Push the driven balance shaft to the stop
Set the dial gauge [16] to zero
Push the driven balance shaft in the other direction
Measure the clearance
NoteThe clearance should be between 0,03 and 0,20 mm
Fit the tools [28a] - [28b] - [16] - [29] - [30]
Lock the drive balance shaft with the tool [29]
Position the tolerance measurement rule [30] on the driven balance shaft, on the centre line of the balance shafts
Tighten the bolt in the tool [30]
Set the dial gauge [16] to zero
Record the tolerance using the tool [30]
NoteThe clearance should be between 0,01 and 0,70 mm
Remove the tools
Fit
- The tolerance measurement rule [30]
- The dial gauge bracket stem [28a]
- The dial gauge support [28b]
- The dial gauge [16]
Fit the tolerance measurement rule [30] on the centre line of the balance shafts
Tighten the bolt in the tool [30]
Set the dial gauge [16] to zero
Press on the balance shaft at (l) (to the stop)
Record the tolerance using the tool [30]
Unscrew the bolt of the tool [30]
Rotate the crankshaft in the normal direction of engine rotation in such a way as to obtain a quarter turn of the balance shafts
Reposition the rule giving the tolerance [30]
Set the dial gauge [16] to zero
Record the tolerance using the tool [30]
Carry out again 7 times the operation for recording the tolerance (1 crankshaft turn)
Take into consideration the minimum tolerance value when selecting the adjustment spacers (in the table below)
| shim identification | minimum clearance | shim thickness |
|---|---|---|
| 0,05 | 1,51 | 51 |
| 0,06 | 1,49 | 49 |
| 0,07 | 1,47 | 47 |
| 0,08 | 1,47 | 47 |
| 0,09 | 1,45 | 45 |
| 0,10 | 1,43 | 43 |
| 0,11 | 1,41 | 41 |
| 0,12 | 1,41 | 41 |
| 0,13 | 1,39 | 39 |
| 0,14 | 1,37 | 37 |
| 0,15 | 1,35 | 35 |
| 0,16 | 1,35 | 35 |
| 0,17 | 1,33 | 33 |
| 0,18 | 1,31 | 31 |
| 0,19 | 1,29 | 29 |
| 0,20 | 1,29 | 29 |
| 0,21 | 1,27 | 27 |
| 0,22 | 1,25 | 25 |
| 0,23 | 1,23 | 23 |
| 0,24 | 1,23 | 23 |
| 0,25 | 1,21 | 21 |
| 0,26 | 1,19 | 19 |
| upper | 1,19 | 19 |
WarningMinimum tolerance equal to or greater than 0,01 mm and less than 0,05 mm; replace the adjustment spacers [25] by spacers 1,57 mm thick
Remove
- The tools [30] - [16] - [28b] - [28a]
- The 8 bolts (20)
- The balancing shafts housing (19)
- The adjustment spacers [25]
Refit
- The spacers determined in relation to the minimum tolerance and the table
- The balancing shafts housing (19)
- Tighten the 8 bolts (20) to 2.2 ± 0.2 m.daN (follow the order indicated)
Check the adjustment
- Carry out 9 tolerance checks according to the method previously described
- The clearance should be between 0,01 and 0,07 mm
WarningAmount of play outside tolerance
A: play less than 0,01 mm; select the thickest spacer before the one used
Example: thickness determined 1,43 mm; if the play is insufficient when checked fit a 1,45 mm thick spacer
B: play greater than 0,07 mm; select the finest spacer after the one used
Example: thickness determined 1,31 mm; if the play is too great when checked fit a 1,29 mm thick spacer
Refit the oil pump
Apply a AUTOJOINT OR bead of sealant around the edge of the cylinder block
Refit
- The cylinder block (21)
- The 2 bolts (22)
- The 20 bolts (23)
Tighten the bolts (23) - (22) to 1.6 ± 0.2 m.daN
Refit
- The clutch disc
- The clutch mechanism (24)
- The bolts (25)
Centre the clutch disc using the tool [32]
Fit the tool [1]
Tighten the bolts (25) to 2.0 ± 0.1 m.daN
Remove the tool [1]
Coat the bolt threads (26) with the product FRENBLOC on the cylinder block side
Refit the heat exchanger (27)
Tighten the bolt (26) to 5.8 ± 0.2 daN.m
Refit
- The oil filter (28)
- The oil pressure switch (29) (fitted with a new seal) (tightening torque to 3.2 ± 0.2 da.Nm)
Place the dial gauge bracket [13] on the cylinder block
Fix the dial gauge [16] on the bracket [13]
Set the dial gauge [16] to zero (as (m))
Check the difference in height at (n)
NoteUse the highest piston as a reference; minimum variation between two consecutive cylinders = 0,07 mm
NoteSelect the thickness of the cylinder head gasket in relation to the protrusion of the pistons
WarningCheck for the cylinder head centering pins on the cylinder block
Position the pistons at mid-stroke
Refit
- The cylinder head gasket
- The cylinder head
- The cylinder head bolts
Fit
- The camshaft
- The diesel high pressure pump
- The timing belt
WarningProceed bolt by bolt in the order shown
Tightening procedure
- Pre-tighten to 2.2 ± 0.2 daNm
- Tightening torque to 6.0 ± 0.5 da.Nm
- Unscrew by 1 turn(s) (360°)
- Tightening torque to 6.0 ± 0.5 da.Nm
- Angular tightening to 220 ± 5° (using tool [21])
Refit
- The roller tensioner guide (30)
- The valve rockers (31) controlling the valves with their hydraulic tappets (mark their positions)
Refit
- The lower timing cover (32)
- The intermediate timing cover (33)
- The top timing cover (34)
- The pulley (35)
- The washer (36)
- The (37) bolt
Fit the tool [1]
Tighten the bolt (37) to 4.0 ± 0.4 daN.m
Remove the tool [1]
Preparation for fitting a diesel injector
- Clip the clamp (38) onto its retaining ring
- Position the centralising ring (39) on the diesel injector (40)
Refit
- The seals (41) (new)
- The diesel injectors (40)
- The nuts (42) (without tightening it)
Refit
- The engine degassing tube
- The fuel high pressure common injection rail (43)
- The oil remover with the hose (44)
- The 4 new fuel high pressure pipes (45)
- The new fuel high pressure pipes (46)
Fully tighten manually to the end of the thread
- The pipe connectors (45) on diesel injectors
- The pipe connectors (45) on the fuel high pressure common injection rail
- The union for the pipe (46) on the high pressure fuel pump
- The pipe connector (46) on the fuel high pressure common injection rail
Refit the clips separating the fuel high pressure pipes
WarningCheck that the clamp is still clipped on its retaining ring; manually tighten the fixing nuts (42) on the diesel injectors; during manual tightening, check that the clamp (38) remains horizontal and clipped on its retaining ring
WarningStop the manual tightening when the retaining ring comes into contact with the main bearing cap casting
Tighten the nuts (42) to 0.4 ± 0.04 dan.m (using the tools [37] - [38])
Observe the following angular tightening method
- Position the identifying zero (x) of the tool [39] facing the operator
- Move the detachable index (w) of the tool [39] and place it opposite graduation 45 °
- Gradually tighten the bolt, in a single operation, bringing back the detachable index (w) opposite the identifying zero (x) of the tool [39]
- Carry out angular tightening by 45 ± 5° of the nuts (42) (using the tools [37] - [39] - [40})
Tighten the unions on the diesel injectors to 2.5 ± 0.2 daNm using tools [41] - [42] - [38]
Tighten the unions on the high pressure common injector rail to 2.5 ± 0.2 daNm using the tools [43] - [42] - [38]
NoteThe initial tightening of the connectors on the injection rail is 2.5 dan.m; use of the tool [43] which is remote, obliges thus torque to be returned to 2.2 ± 0.2 dan.m
Refit the diesel injector fuel return rail
Tighten the union (47) to 2.5 ± 0.2 da.Nm (using the tools [41] - [38])
Tighten the union (48) to 2.5 ± 0.2 da.Nm (using the tools [41] - [42] - [38])
Refit
- The fuel supply and return piping
- The fuel filter assembly (49) from its bracket
Refit
- The exhaust manifold seal
- The exhaust manifold (50)
- The 9 spacers with the 9 nuts (51)
- The heat exchanger (52)
- The pipe (53)
- The clips (54) - (55) (using tool [10])