194002124 - 1004E20 ENGINE - DISMANTLE AND REASSEMBLE FOLLOWING OPERATION 1004E10 - WASH AND CHECK DISMANTLED PARTS - REFIT CYLINDER HEAD AND OIL SUMP - DOES NOT INCLUDE REPAIRS TO CYLINDER HEAD AND AUXILIARY UNIT
 Removing
		(
		Refitting
Removing
		(
		Refitting )
	Rotate the engine through 180° on the overhaul stand.1. Undo the bolts (1a) and remove the automatic engine component single belt tensioner (1b).2. Undo the fixing bolts (2a) and remove the automatic belt tensioner bracket (2b).
		)
	Rotate the engine through 180° on the overhaul stand.1. Undo the bolts (1a) and remove the automatic engine component single belt tensioner (1b).2. Undo the fixing bolts (2a) and remove the automatic belt tensioner bracket (2b).




| Description | Code | Function | |
|---|---|---|---|
| 1 | Flange | 1.860.815.000 | Crankshaft rotation | 

| Subject | Value | |
|---|---|---|
| . | Crankshaft | mm | 
| - | End float | - | 

 Refitting
		(
		Removing
Refitting
		(
		Removing )
	Wash the dismantled components.Fit the water/oil sealing plugs in the crankcase using suitable fitting tools.Lubricate all the mechanical components with engine oil.Check that the cylinder head support surface does not have cracks or superficial grooves.Check that the planarity of the cylinder head support surface corresponds to the recommended figure; if this is not the case, regrind the cylinder head support surface.
		)
	Wash the dismantled components.Fit the water/oil sealing plugs in the crankcase using suitable fitting tools.Lubricate all the mechanical components with engine oil.Check that the cylinder head support surface does not have cracks or superficial grooves.Check that the planarity of the cylinder head support surface corresponds to the recommended figure; if this is not the case, regrind the cylinder head support surface.| Subject | Value | |
|---|---|---|
| . | Cylinder block/crankcase | mm | 
| - | Cylinder head support surface flatness | < 0.1 | 
| Subject | Value | ||
|---|---|---|---|
| 1 | Cylinder block/crankcase | mm | |
| - | Cylinder liner bore | 82.000 - 82.010 | |
| - | - | 82.010 - 82.020 | |
| - | - | 82.020 - 82.030 | 
| Subject | Value | |
|---|---|---|
| . | Cylinder block/crankcase | mm | 
| - | Cylinder liner taper | < 0.005 | 
| Subject | Value | |
|---|---|---|
| . | Cylinder block/crankcase | mm | 
| - | Cylinder liner ovality | < 0.05 | 
|  | In the case of reaming, all the bores must have the same oversize. | 
| Subject | Value | |
|---|---|---|
| . | Cylinder block/crankcase | mm | 
| - | Cylinder liner oversize | 0.1 | 

|  | The bearing caps have progressively numbered references (from zero to four starting from the front of the engine) which define the fitting position. | 

| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 1a | (engine crankcase side) 2.5 + 100° | Bolt | MAIN BEARING CAPS | M12 | 
| Description | Code | Function | |
|---|---|---|---|
| 1b | Torque wrench | 1.860.942.000 | Angular tightening of bearing cap bolts | 
| Subject | Value | |
|---|---|---|
| 2 | Bearing caps | mm | 
| - | Main journal seat diameter | 63.705 ÷ 63.718 | 

| Subject | Value | |
|---|---|---|
| . | Crankshaft | mm | 
| - | Main journal diameter - Category A | 59.994 ÷ 60.000 | 
| - | Category B | 59.988 ÷ 59.994 | 
| - | Category C | 59.982 ÷ 59.988 | 
| Subject | Value | |
|---|---|---|
| . | Crankshaft | mm | 
| - | Main journal undersize | 0.127 | 
|  | Crankpin undersizes higher than the value mentioned will adversely affect the structural resistance of the crankshaft (following contact between the tool and rolled connectors). As far as the above is concerned, if the regrinding requires undersizes greater than 0.127 mm, then the crankshaft must be replaced and a new one ordered from the Parts Dept. | 
| Subject | Value | |
|---|---|---|
| . | Crankshaft | mm | 
| - | Crankpin diameter - Category A | 50.799 ÷ 50.805 | 
| - | Category B | 50.793 ÷ 50.799 | 
| - | Category C | 50.787 ÷ 50.793 | 
| Subject | Value | |
|---|---|---|
| . | Crankshaft | mm | 
| - | Main journal undersize | 0.127 | 
|  | Crankpin undersizes higher than the value mentioned will adversely affect the structural resistance of the crankshaft (following contact between the tool and rolled connectors). As far as the above is concerned, if the regrinding requires undersizes greater than 0.127 mm, then the crankshaft must be replaced and a new one ordered from the Parts Dept. | 
| Subject | Value | |
|---|---|---|
| . | Small end bush | mm | 
| - | Inner diameter | 26.006 - 26.014 | 
| Subject | Value | |
|---|---|---|
| . | Pistons | mm | 
| - | Piston bush internal diameter | 25.999 ÷ 26.004 | 
| Subject | Value | |
|---|---|---|
| . | Gudgeon pins | mm | 
| - | Outer diameter | 25.982 ÷ 25.987 | 
| Subject | Value | |
|---|---|---|
| . | Piston rings | mm | 
| - | 1st piston ring gap | 0.20 ÷ 0.35 | 
| - | 2nd piston ring gap | - ÷ - | 
| Subject | Value | |
|---|---|---|
| . | Oil scaper ring | mm | 
| - | Oil scraper ring gap | - ÷ - | 
| Subject | Value | |
|---|---|---|
| . | Pistons | mm | 
| - | Outer diameter - Category A | 81.920 ÷ 81.930 | 
| - | Category B | 81.930 ÷ 81.940 | 
| - | Category C | 81.940 ÷ 81.950 | 
|  | Measure perpendicular to the gudgeon pin axis, 9 mm from the lower edge of the skirt. | 
| Subject | Value | |
|---|---|---|
| 1a | Piston rings | mm | 
| - | End float | - ÷ - | 
| Subject | Value | |
|---|---|---|
| . | Oil scaper ring | mm | 
| - | End float | - | 

| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 1c | 2.5 + 60° | - | CONNECTING ROD CAPS | M9 | 
| Description | Code | Function | |
|---|---|---|---|
| . | Torque wrench | 1.860.942.000 | Angular tightening of bearing cap bolts | 
| Subject | Value | |
|---|---|---|
| 2 | Connecting rods | mm | 
| - | Big end diameter | 53.897 ÷ 53.909 | 

| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | 2.7 ÷ 4.0 | - | MINIMUMM ENGINE OIL PRESSURE WARNING LIGHT SENSOR | 
|  | The crankshaft supplied by the Parts Dept. comes without half-bearings and the main journals and crankpins are the "normal" size; the half-bearings to be fitted must therefore be selected identifying the class of each main journal and crankpin for the new crankshaft. | 
|  | Only use the codes that relate to the key, all other codes on the flywheel should not be used. | 

| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 1a | 0.9 - 1.2 | Bolt | PISTON COOLING NOZZLES | 

|  | The bearing caps have progressively numbered references (from zero to five starting from the engine pulley side) which define the fitting position. | 

| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 1a | 2.5 + 100° | Bolt | MAIN BEARING CAPS | M12 | 
| Description | Code | Function | |
|---|---|---|---|
| 1b | Torque wrench | 1.860.942.000 | Angular tightening of bearing cap bolts | 

| Description | Code | Function | |
|---|---|---|---|
| . | Flange | 1.860.815.000 | Crankshaft rotation | 
|  | The piston-connecting rod assemblies are fitted in the cylinder block/crankcase so that the combustion chamber in the piston is facing the intake side. | 
|  | For the selection of the connecting rod half-bearings, follow the procedure described previously for the main journal half-bearings. | 
|  | Fit the connecting rods so that the number stamped on each rod faces toward the same side as the number stamped on the big end (inlet side). | 

| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 1a | 2.5 + 60° | Bolt | CONNECTING ROD CAPS | M9 | 
| Description | Code | Function | |
|---|---|---|---|
| 1b | Torque wrench | 1.860.942.000 | Angular tightening of bearing cap bolts | 

| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 1b | 0.9 - 1.2 | Bolt | CRANKCASE REAR COVER | M6 | 

| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | 0.9 - 1.3 | Bolt | FRONT COVER CRANKCASE COMPLETE WITH OIL PUMP | M6 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | 0.9 - 1.3 | - | OIL SECTION PUMP | - | 
| Description | Q.ty | Component | Type | Classification | |
|---|---|---|---|---|---|
| . | Dow corning 7091 | - | ENGINE OIL SUMP | Silicon sealant | - | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 2a | (engine crankcase side) 0.9 - 1.2 | Side bolts | CRANKCASE SUMP | M6 | 
| Description | Code | Function | |
|---|---|---|---|
| 2b | Spanner | 1.860.834.001 | Loosen/Tighten crankcase sump side bolts | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 2a | (engine crankcase side) 2.1 - 2.6 | Front and rear bolts | CRANKCASE SUMP | M8 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 2a | (engine crankcase side) 2.3 - 3.3 | Front and rear bolts | CRANKCASE SUMP | M8 | 
| Description | Code | Function | |
|---|---|---|---|
| 2b | Spanner | 1.860.833.001 | Loosen/Tighten front and rear crankcase sump bolts | 

| Description | Code | Function | |
|---|---|---|---|
| . | Counter-torque | 1.860.846.000 | Flywheel lock | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | (crankshaft side) 14.7 - 21.2 | Bolt with thread-locking agent | ENGINE FLYWHEEL | M12 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | (crankshaft side) 32.9 - 44.1 | Bolt (left hand thread) | TOOTHED DRIVE PULLEY | M16 | 
| Description | Code | Function | |
|---|---|---|---|
| . | Counter-torque | 1.860.846.000 | Flywheel lock | 
| Description | Code | Function | |
|---|---|---|---|
| 1 | Dial gauge support | 1.870.404.000 | Piston projection from cylinder head support plane check | 

| Subject | Value | |
|---|---|---|
| . | Cylinder head gasket | mm | 
| - | Shim (no reference) | 0.82 | 
| Subject | Value | |
|---|---|---|
| . | Cylinder head gasket | mm | 
| - | Average maximum piston projection | 0.201 ÷ 0.295 | 
| Subject | Value | |
|---|---|---|
| . | Cylinder head gasket | mm | 
| - | Shim (two references) | 1.02 | 
| Subject | Value | |
|---|---|---|
| . | Cylinder head gasket | mm | 
| - | Average maximum piston projection | 0.101 ÷ 0.200 | 
| Subject | Value | |
|---|---|---|
| . | Cylinder head gasket | mm | 
| - | Shim (one reference) | 0.92 | 
| Subject | Value | |
|---|---|---|
| . | Cylinder head gasket | mm | 
| - | Average maximum piston projection | 0.020 ÷ 0.100 | 

|  | The cylinder head gasket is ASTADUR type. The material from which the gasket is made undergoes a polymerization process during the operation of the engine so that it becomes considerably harder during usage.In order for the polymerization process to take place, it is necessary to: | 
|  | Follow the order shown in the figure for each tightening sequence. | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 1a | 2 + 6.5 + 90° + 90° + 90° | Bolts | CYLINDER HEAD | M12 | 
|  | The figure of 2 daNm in the table below is a tightening value for all the bolts following the order illustrated in the diagram. | 
| Description | Code | Function | |
|---|---|---|---|
| 1b | Torque wrench | 1.860.942.000 | Cylinder head bolts angular tightening | 

|  | Check the tools marked "A" are correctly fitted in the seats on the camshafts. | 
| Description | Code | Function | |
|---|---|---|---|
| 1b | Templates | 1.870.986.900 | Engine tuning | 


|  | The crankshaft must be rotated, using small movements, to allow the locating dowel on the timing drive pulley to be inserted in the opening in the tool. | 
| Description | Code | Function | |
|---|---|---|---|
| 2a | Template | 1.860.905.000 | Engine tuning | 
| Description | Code | Function | |
|---|---|---|---|
| 2b | Calibrated screw | 1.860.905.010 | Engine tuning | 

| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | 2.5 | Nut | INLET MANIFOLD | M8 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | (Cylinder block/crankcase) 2.5 | Bolt | INJECTION PRESSURE PUMP MOUNT | M8 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | 2.5 | Bolt | POWER STEERING PUMP | M8 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | 2.5 | Nut | PRESSURE PUMP | M8 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | 5 | Nut | PRESSURE PUMP CONTROL PULLEY | M14 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| 2d | 2.5 | Nut | MOBILE TIMING TENSIONER | M8 | 

| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | 12 | Bolt | TIMING DRIVEN PULLIES | M12 | 
| Description | Code | Function | |
|---|---|---|---|
| . | Templates | 1.870.986.900 | Engine tuning | 
|  | Remove the exhaust side camshaft template as the inlet side one has already been removed. | 
| Description | Code | Function | |
|---|---|---|---|
| . | Template | 1.860.905.000 | Engine tuning | 
| Description | Code | Function | |
|---|---|---|---|
| . | Calibrated screw | 1.860.905.010 | Engine tuning | 
|  | Only fit the exhaust side camshaft template because the intake side template seat is not accessible. | 
|  | Begin to fit, starting from the injector for the cylinder 5, followed by cylinders 4 , 3 , 2 , 1. | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | (pump side) 2.3 | Connector | PRESSURE PUMP LINE TO FUEL MANIFOLD | M14X1.5 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | 2.5 | Bolts | INJECTOR FUEL MANIFOLD (DIESEL) | M8 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | (injector side) 2 | Connectors | INJECTOR FUEL MANIFOLD PIPE | M12X1.5 | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | (manifold side) 2 | Connectors | PIPE FUEL MANIFOLD TO INJECTORS | M12X1.5 | 
|  | Clean the threaded pipe seats on the manifold and injectors with heptane. | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | (manifold side) 2.3 | Connector | PRESSURE PUMP LINE TO FUEL MANIFOLD | M14X1.5 | 
| Description | Code | Function | |
|---|---|---|---|
| . | Flywheel lock | 1.860.846.001 | Prevent the rotation of the crankshaft | 
| Value daNm | Fastening | Component | Ø | |
|---|---|---|---|---|
| . | 2.5 | Bolt | CRANKSHAFT PULLEY | M8 | 
| Description | Code | Function | |
|---|---|---|---|
| . | Flywheel lock | 1.860.846.001 | Prevent the rotation of the crankshaft | 
| Description | Connector | |
|---|---|---|
| . | Timing sensor | K047 | 
| Description | Connector | |
|---|---|---|
| . | Injector | N070A | 
| Description | Connector | |
|---|---|---|
| . | Injector | N070E | 
| Description | Connector | |
|---|---|---|
| . | Injector | N070D | 
| Description | Connector | |
|---|---|---|
| . | Injector | N070C | 
| Description | Connector | |
|---|---|---|
| . | Injector | N070B | 
| Description | Connector | |
|---|---|---|
| . | Heater plugs | A040A | 
| Description | Connector | |
|---|---|---|
| . | Heater plugs | A040E | 
| Description | Connector | |
|---|---|---|
| . | Heater plugs | A040D | 
| Description | Connector | |
|---|---|---|
| . | Heater plugs | A040C | 
| Description | Connector | |
|---|---|---|
| . | Heater plugs | A040B | 
| Description | Connector | |
|---|---|---|
| . | Supercharging sensor | K082 | 
| Description | Connector | |
|---|---|---|
| . | Fuel pressure regulator | N077 | 
| Description | Connector | |
|---|---|---|
| 3 | Fuel pressure sensor | K083 | 
| Description | Connector | |
|---|---|---|
| . | EGR solenoid valve | L030 | 
| Description | Connector | |
|---|---|---|
| . | Rpm sensor | K046 | 
| Description | Connector | |
|---|---|---|
| . | Engine coolant temperature sensor/sender unit | K036 |