2585285 - 1016E10 single cylinder head, removed - overhaul

Remove the cylinder head from the vice.Unscrew the bolts and remove the mounting tool.
DescriptionCode
-Support1.860.470.000
Removing ( Refitting ) Place the cylinder head on the workbench.1. Use the nut and counternut to unscrew the stud.2. Fit the tool (2a) on the cylinder head (2b) and secure it using the nuts (2c).
DescriptionCode
2aSupport1.860.470.000
Place the tool in the vice.1. Loosen the manifold side connectors for the pipes from the fuel manifold to the injectors.2. Undo the injector side connectors for the pipes from the fuel manifold to the injectors.3. Undo the nuts (3a) and remove the fuel distribution manifold (3b) complete with fuel pressure sensor and pipes (3c).
DescriptionConnector
3cFuel pressure sensor    See K83 FUEL PRESSURE SENSOR ( ENGINE )
4. Remove clips (4a) and withdraw the fuel return pipe to lubricate injectors (4b).Undo the nuts and disconnect the supply wiring from the glow plugs.
DescriptionConnector
-Heater plugs    See A040 HEATER PLUGS
Disconnect the coolant return pipe to the expansion tank and de-aeration system from the thermostat.5. Undo the nuts (5a) and remove the air intake manifold assembly (5b).
1. Undo the bolts (1a) and disconnect the water/exhaust gas heat exchanger for the E.G.R. system (1b) from the EGR system solenoid.2. Undo the fixing bolts (2a) and remove the E.G.R. system solenoid valve (2b).3. Remove the bracket.
1. Release the vacuum pipe from the fastening bands.2. Disconnect the vacuum pipe from the air valve on the electropneumatically-controlled throttle body.3. Loosen the band and disconnect the engine oil vapour recovery pipe from the cam cover.4. Loosen the band securing the air intake sleeve to the electropneumatically-controlled throttle body.
1. Undo the bolts (1a) and remove the electropneumatically-controlled throttle body (1b).2. Remove the gasket.
Unscrew the bolt securing the water/exhaust gas heat exchanger for the EGR system to the cylinder head.1. Unscrew the nut securing the water/exhaust gas heat exchanger for the EGR system to the cylinder head.2. Undo the bolt (2a) and the nut (2b) and remove the thermostat (2c) together with the water/exhaust gas heat exchanger for the E.G.R. system (2d).3. Remove the thermostat gasket.
1. Undo the bolts (1a) and remove the vacuum pump (1b) complete with gasket.
1. Undo the toothed driven pulley bolt (1a) using the tool (1b).
DescriptionCode
1bSupport for counter-torque1.860.831.000
2. Remove the toothed driven pulley.3. Undo the bolts (3a) and remove the timing sensor (3b).
DescriptionConnector
3bTiming sensor    See K47 TIMING SENSOR ( ENGINE )
4. Undo the bolts (4a) and remove the water pump (4b) complete with O-ring (4c).
1. Undo the nuts (1a) and remove the brackets (1b) for the injectors.2. Remove the injectors (2a) complete with gasket (2b).
DescriptionConnector
2aInjector    See N070 INJECTOR
3. Remove the injector bracket support pads.4. Remove the heater plugs.
DescriptionConnector
4Heater plugs    See A040 HEATER PLUGS
Check that the camshaft endfloat is within the recommended values using a dial gauge.
MeasurementValue
-End float (mm)0.100 - 0.230
If the camshaft endfloat is not within the recommended values, replace the worn components when reassembling the cylinder head.1. Undo the camshaft cap bolts.2. Remove the camshaft support lubrication pipe.3. Remove the camshaft caps.
When removing, mark the camshaft caps with a progressive number to define their installation position.
4. Remove the camshaft.5. Remove the camshaft front oil seal.6. Remove the cups complete with valve clearance adjustment pads.
When removing, mark the cups with a progressive number to define their installation position.
Remove the cylinder head from the vice.Position a suitable wooden stand on the cylinder head plane to support the valves and secure it using bolts.Lock the cylinder head in the vice.1. Remove the cotters (1a) using the tool (1b).
DescriptionCode
1bTool1.860.644.000
2. Remove the valve upper shim.3. Remove the valve spring.
1. Remove the valve guide oil seal (1a) using the tool (1b) A.
DescriptionCode
1bExtractor1.860.989.000
2. Remove the lower shim.Carry out the same operations on the other valves.Release the cylinder head from the vice and position on the workbench.Remove the wooden stand and recover the valves.
Mark the valves with a progressive number to define their installation position.
Remove the support tool from the cylinder head.
DescriptionCode
-Support1.860.470.000
1. Remove the valve guides (1a) using the tool (1b).
DescriptionCode
1bExtractor1.860.395.001
Refitting ( Removing ) Clean any residues of the old gasket from the lower cylinder head plane.Check that the flatness of the lower cylinder head plane corresponds to the recommended values.
MeasurementValue
-Lower plane planarity (mm)0.1
1. If the planarity of the lower cylinder head plane does not correspond to the recommended figures, regrind it without exceeding the minimum permitted height.
MeasurementValue
1Minimum permitted height (mm)140.6
Check that the valves do not show signs of scoring or seizing.Check that the diameter of the valve stems corresponds to the recommended figures; if not, replace the worn valves.
MeasurementValue
-Stem diameter (mm)7.974 - 7.992
Check that the outer diameter of the cups corresponds to the recommended figures; if not, replace the worn components.
MeasurementValue
-Outer diameter (mm)36.975 - 36.995
Check that the diameter of the cup seats corresponds to the recommended figures; if not, replace the cylinder head.
MeasurementValue
-Cup housing diameter (mm)37.000 - 37.025
Check that the length of the valve springs when released is within the recommended values.
MeasurementValue
-Free length (mm)53.9
Using a torque wrench, check that the spring specifications correspond to the recommended figures; if not, replace the worn components.
MeasurementValue
-Length (mm)36
under a load of (daN)36.7 - 39.6
MeasurementValue
-Length (mm)26.5
under a load of (daN)56.0 - 61.0
Check that the diameter of the camshaft bearings corresponds to the recommended figures; if not, replace the worn camshaft.
MeasurementValue
-Journal diameter (mm)26.000 - 26.015
Check that the nominal camshaft cam lift corresponds to the recommended figures; if not, replace the worn camshaft.
MeasurementValue
-Nominal cam height (mm)8.5
1. Fit the camshaft caps (1a) on the cylinder head in their original position and tighten the bolts (1b) to the recommended torque.
FasteningComponentdia  Value(daNm)
1bBoltCAMSHAFT CAPSM71.3 - 1.6
2. Check that the diameter of the camshaft supports corresponds to the recommended figures; if not, replace the cylinder head.
MeasurementValue
2Diameter (mm)26.045 - 26.070
Undo the bolts and remove the camshaft caps.
Check that the outer diameter of the valve guides to be fitted corresponds to the recommended figures.
MeasurementValue
-Outer diameter (mm)14.010 ÷ 14.030
Oversizes (mm)0.05, 0.10, 0.25
1. Fit the valve guides (1a) using the tool (1b).
The valve guides should be fitted after the cylinder head has been heated to a temperature of 80° - 100°C.
DescriptionCode
1bFitting tool1.860.812.000
Ream the valve guide bore to the recommended figure.
MeasurementValue
-Inner diameter (mm)8.022 ÷ 8.040
Temporarily fit the valves.1. Check the clearance between the valve stem and valve guide.
Grind the valve seats to the required values if they are ground, or replace the valves or valve guides
MeasurementValue
-Upper ring taper (mm)"a"70°
MeasurementValue
-Width of ring in contact with valve (mm)"b"45° +- 5''
MeasurementValue
-Lower ring taper (mm)"c"15°
MeasurementValue
-Width of band in contact with valve (mm)" I "+- 2
Grind the valve seats using a suitable tool.Temporarily fit the valves.1. Check that the valve recess in relation to the cylinder head plane corresponds to the recommended figures using the tool fitted with a dial gauge.
MeasurementValue
1Cylinder head plane recess (mm)0.1 - 0.5
DescriptionCode
1Dial gauge support1.870.404.000
If the valve recess in relation to the cylinder head plane does not correspond to the recommended figures, regrind the valve seats once again.
Fit the support tool on the cylinder head and secure it using the nuts.Position a suitable wooden stand on the cylinder head plane to support the valves and secure it using bolts.Fit the cylinder head, complete with valves, in the vice.Fit the lower shim.1. Remove the valve guide oil seals (1a) on the valve using the tool (1b).
DescriptionCode
1bDrift1.860.814.000
1. Fit the valve guide oil seals (1a) using the tools (1b) and (1c).
DescriptionCode
1bFitting tool1.860.313.000
DescriptionCode
1cDrift1.867.019.000
Fit the valve spring.Fit the valve upper shim.1. Fit the cotters (1a) using the tool (1b).
DescriptionCode
1bTool1.860.644.000
Carry out the same operations on the other valves.
Remove the cylinder head from the vice.Remove the wooden stand supporting the valves.Refit the cylinder head in the vice.Fit the cups complete with valve clearance adjustment pads in their position prior to removal.Fit the camshaft.1. Fit the camshaft caps in their position prior to removal.
Apply LOCTITE 573 to the contact surfaces with the head for the 1st and 5th camshaft caps.
Fit the camshaft bearing lubrication pipe.2. Tighten the camshaft cap bolts to the recommended torque.
FasteningComponentdia  Value(daNm)
2BoltCAMSHAFT CAPSM71.3 - 1.6
1. Fit the camshaft front oil seal (1a) using the tool (1b).
DescriptionCode
1bFitting tool1.860.824.000
2. Fit the spark plugs and tighten them to the recommended torque.
DescriptionConnector
2Heater plugs    See A040 HEATER PLUGS
FasteningComponentdia  Value(daNm)
2-GLOW PLUGSM121.3 - 1.6
1. Fit the injector bracket support pads.2. Fit the injectors (2a) complete with gasket (2b).
DescriptionConnector
2aInjector    See N070 INJECTOR
3. Fit the injector brackets (3a) and tighten the nuts (3b) to the recommended torque.
FasteningComponentdia  Value(daNm)
3bNutINJECTORS(DIESEL)M82.6 - 3.2
4. Fit the fuel return pipe to lubricate injectors (4a) and secure with clips (4b).
1. Fit the water pump (1a), complete with a new O-Ring (1b) and tighten the bolts (1c) to the recommended torque.
FasteningComponentdia  Value(daNm)
1cBoltCOOLANT PUMPM82.5
2. Fit timing sensor (2a) and tighten bolts (2b).
DescriptionConnector
2aTiming sensor    See K47 TIMING SENSOR ( ENGINE )
3. Fit the toothed driven pulley.4. Tighten the toothed driven pulley bolt (4a) to the recommended torque using the tool (4b).
FasteningComponentdia  Value(daNm)
4aBoltTIMING DRIVEN PULLEYM1210.2 - 12.6
DescriptionCode
4bSupport for counter-torque1.860.831.000
Check that the valve clearance, with the valves closed, corresponds to the recommended figures; if not, replace the valve clearance adjustment pads following the instructions given below.
MeasurementValue
-Inlet valve clearance in closed position (mm)Inlet0.25 - 0.35
Exhaust0.30 - 0.40
1. Lower the tappet in question using the tool.
DescriptionCode
1Lever1.860.443.000
2. Fit the tool to lock the cup in lowered position.
DescriptionCode
2Lever1.860.724.000
Remove the tool.
DescriptionCode
-Lever1.860.443.000
Remove the valve clearanance adjustment plate and replace it with a one of a suitable thickness.Remove the tool.
DescriptionCode
-Lever1.860.724.000
Remove the seal.1. Fit the thermostat (1a) complete with pipes and sensors and tighten the bolts (1b) to the recommended torque.
FasteningComponentdia  Value(daNm)
-BoltCOOLANT PUMP PULLEYM82.5
2. Fit the vacuum pump (2a) complete with gasket and tighten the bolts (2b) to the recommended torque.
FasteningComponentdia  Value(daNm)
3bBoltVACUUM PUMP FOR BRAKESM82.5
1. Refit the water/exhaust gas heat exchanger for the E.G.R. system (1a) with thermostat (1b) complete with gasket (1c)..2. Tighten pin (2a) and bolt (2b) securing the thermostat to the recommended torque.
FasteningComponentdia  Value(daNm)
2aPinTHERMOSTATM8(Cylinder head side) 2.3 - 2.8
FasteningComponentdia  Value(daNm)
2bBoltTHERMOSTATM8(Cylinder head side) 2.3 - 2.8
3. Tighten the nut securing the water/exhaust gas heat exchanger for the E.G.R. system to the cylinder head.
Tighten the bolts securing the water/exhaust gas heat exchanger for the E.G.R. system to the cylinder head.Refit the electrical wiring in its seat and connect the electrical connections to the injectors.Connect the coolant intake pipe and the coolant outlet pipe to the EGR exhaust gas heat exchanger, then tighten the collars.Connect the coolant return pipe to the engine coolant reservoir to the thermostat and tighten the band.Connect the coolant delivery pipe to the climate control system heater to the thermostat and tighten the band.Connect the outlet pipe from the climate control system heater to the T-connector and the delivery pipe to the water pump liquid rigid inlet pipe, then tighten the collars.Connect the radiator upper coolant inlet hose to the radiator and tighten the band.Connect the electrical connection to the engine coolant temperature sensor.Tighten the bolts securing the water/exhaust gas heat exchanger for the E.G.R. system to the exhaust manifold.Secure the turbocharger vane position actuator control solenoid to the protection on the gearbox.Connect the electrical connection to the turbocharger vane position actuator solenoid valve.1. Refit the electro-pneumatically operated throttle casing (1a) complete with gasket (1b) back in its housing and secure it tightening the bolts (1c) to the recommended torque.
FasteningComponentdia  Value(daNm)
1c----
Tighten the band securing the air intake sleeve to the electropneumatically-controlled throttle body.Connect the engine oil vapour recovery pipe to the cam cover and tighten the band.Connect the vacuum pipe to the air valve on the electropneumatically-controlled throttle body.Secure the vacuum pipe to the fastening bands.Place the E.G.R. system solenoid valve in its housing complete with bracket and fasten it tightening the bolts to the recommended torque.Connect the water/exhaust gas heat exchanger for the E.G.R. system to the EGR system solenoid and tighten the bolts.1. Fit the intake air manifold assembly (1a) and tighten the nuts (1b).Connect the coolant return pipe to the expansion tank and de-aeration system to the thermostat.Position the heater plugs supply wiring and secure it using the nuts.
DescriptionConnector
-Heater plugs    See A040 HEATER PLUGS
2. Connect the fuel return pipe to lubricate injectors (2a) to the fuel manifold and secure with clips (2b).3. Fit the fuel rail (3a) complete with pipes and fuel pressure sensor (3b) and tighten the nuts (3c).
DescriptionConnector
-Fuel pressure sensor    See K83 FUEL PRESSURE SENSOR ( ENGINE )
4. Using a fixed wrench, bring the connectors of the pipes from the fuel rail to the injectors, injector side, into contact, then tighten to the specified torque using a fork-type torque wrench.
FasteningComponentdia  Value(daNm)
4ConnectorPIPE FUEL MANIFOLD TO INJECTORSM12(injector side) 2.3
5. Tighten the connectors (5a) for the pipes from the fuel manifold to the manifold side injectors to the recommended torque using tool (5b).
FasteningComponentdia  Value(daNm)
5aConnectorPIPE FUEL MANIFOLD TO INJECTORSM14(Manifold side) 2.3
DescriptionCode
5bSpanner1.852.138.000
Remove the cylinder head from the vice.Unscrew the bolts and remove the mounting tool.
DescriptionCode
-Support1.860.470.000
Retighten the stud.