184000818 - 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL

Removing ( Refitting ) Take the cylinder head to the workbench.1. Use a nut and locknut to unscrew the stud.2. Fit tool (2a) to cylinder head (2b) and secure using nuts (2c).

NameCountry
2aSupport1.860.470.000
Position the tool in the vice.1. Loosen the manifold side connectors of the pipes leading from the fuel manifold to the injectors.2. Undo the injector side connectors of the pipes leading from the fuel manifold to the injectors.3. Undo the nuts (3a) and remove the fuel distributor manifold (3b), complete with pipes and fuel pressure sensor (3c).
NameConnector
3cFuel pressure sensor K83
4. Remove clips (4a) and remove the fuel return pipe for lubricating injectors (4b).Undo the nuts and disconnect the supply wiring from the heater plugs.
NameConnector
-Heater plug A40
Disconnect the coolant return pipe to the expansion tank and system vent pipe from the thermostat.5. Undo the nuts (5a) and remove the complete air intake manifold (5b).
1. Undo bolts (1a) and remove vacuum pump (1b) complete with gasket.2. Undo bolts (2a) and remove thermostat (2b) complete with pipe, sensors and O-ring.
1. Undo the bolt (1a) for the driven pulley using the tools (1b).

NameCountry
1bSupport for counter-torque1.860.831.000
2. Remove the toothed driven pulley.3. Undo bolts (3a) and remove timing sensor (3b).
NameConnector
3bTiming sensor. K47
4. Undo bolts (4a) and remove water pump (4b) complete with O-ring (4c).
1. Undo nuts (1a) and remove injector bracket (1b).2. Remove injectors (2a) complete with seals (2b).
NameConnector
2aInjector N70
3. Remove the injector bracket support pads.4. Remove the heater plugs.
NameConnector
4Heater plug A40
Check that the end float of the camshaft is within the recommended values using a dial gauge.

MeasurementValue
-End float (mm)0.100 - 0.230
If the end float of the camshaft is not within the recommended values, when reassembling the cylinder head, replace the worn components.1. Undo the camshaft cap bolts.2. Remove the camshaft support lubrication pipe.3. Remove the camshaft caps.
When dismantling, mark the camshaft caps with a progressive number so that they can be refitted in the correct order.
4. Remove the camshaft.5. Remove the camshaft front oil seal.6. Remove the cups complete with valve clearance adjustment pads.
When dismantling, mark the cups with a progressive number so that they can be refitted in the correct order.
Release the cylinder head from the vice.Place a wooden board on the cylinder head surface to support the valves and bolt in place.Secure the cylinder head to the clamp.1. Remove cotters (1a) using tool (1b).

NameCountry
1bTool1.860.644.000
2. Remove the upper valve shim.3. Remove the valve spring.
1. Remove valve guide oil seal (1a) using tool (1b) A.

NameCountry
1bExtractor1.860.989.000
2. Remove the lower shim.Work in the same way on the other valves.Release the cylinder head from the clamp and place on the workbench.Remove the wooden board and recover the valves.
Mark the valves with a progressive number so that they can be refitted in the correct order.
Remove the support tool from the cylinder head.

NameCountry
-Support1.860.470.000
1. Remove valve guides (1a) using tool (1b).

NameCountry
1bExtractor1.860.395.001
Refitting ( Removing ) Clean the residues of the old gasket from the lower surface of the cylinder head.Check that the planarity of the lower cylinder head surface is within the recommended values.

MeasurementValue
-Flatness of bottom surface (mm)0.1
1. If the planarity of the lower cylinder head surface is not within the recommended values, regrind the lower cylinder head surface without exceeding the minimum permissible height.

MeasurementValue
1Permissible minimum height (mm)140.6
Check that the valves do not show signs of scoring or seizing.Check that the diameter of the valve stems is within the recommended values; if this is not the case, replace the worn valves.

MeasurementValue
-Stem diameter (mm)7.974 - 7.992
Check that the outer diameter of the cups is within the recommended values. if this is not the case, replace the worn parts.

MeasurementValue
-Outer diameter (mm)36.975 - 36.995
Check that the diameter of the cup housings are within the recommended values; If this is not the case, replace the cylinder head.

MeasurementValue
-Cup seat diameter (mm)37.000 - 37.025
Check that the length of the uncompressed valve springs is within the recommended values.

MeasurementValue
-Free length (mm)53.9
Use a torque wrench to check that the spring specifications are within specified values; if this is not the case, replace parts that have yielded.

MeasurementValue
-Length (mm)36
at load of (daN)36.7 - 39.6

MeasurementValue
-Length (mm)26.5
at load of (daN)56.0 - 61.0
Check that the cam journal diameters are within the recommended values; if this is not the case, replace the worn camshat.

MeasurementValue
-Journal diameter (mm)26.000 - 26.015
Check that the nominal lift of the camshaft cams is within the recommended values; if this is not the case, replace the worn camshat.

MeasurementValue
-Nominal cam lift (mm)8.5
1. Fit camshaft caps (1a) in their original positions on the cylinder head and tighten bolts (1b) to torque.

FasteningComponentØValue(daNm)
1bBoltCAMSHAFT CAPSM71.3 - 1.6
2. Check the diamter of the camshaft mounts is within specified values; If this is not the case, replace the cylinder head.

MeasurementValue
2Diameter (mm)26.045 - 26.070
Unscrew the bolts and remove the camshaft caps.
Check that the outer diameter of the valve guides to be fitted is within the recommended values.

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).
Fit the valve guides after heating the cylinder head to 80°¸100° C.

NameCountry
1bFitting tool1.860.812.000
Ream the inner diameter of the valve guides to the recommended value.

MeasurementValue
-Inner diameter (mm)8.022 ÷ 8.040
Temporarily fit the valves.1. Check the clearance between valve stem and valve guide.
Regrind the valve seats to the recommended dimension if the valves or valve guides have been ground or replaced..

MeasurementValue
-Upper section taper (mm)"to"70°

MeasurementValue
-Valve contact band taper (mm)"b"45° +- 5''

MeasurementValue
-Lower band taper (mm)"c"15°

MeasurementValue
-Valve contact band width (mm)" l "+- 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 is within the recommended values, using a tool fitted with a dial gauge.

MeasurementValue
1Recess from cylinder head surface (mm)0.1 - 0.5

NameCountry
1Dial gauge mounting1.870.404.000
If the valve recess in relation to the cylinder head plane is not within the recommended value, regrind the valve seats.
Fit the support tool to the cylinder head and secure using the nuts.Place a wooden board on the cylinder head to support the valves and bolt in place.Tighten the cylinder head and valves in a vice.Fit the lower shim.1. Fit valve guide oil seals (1a) to the valves using tool (1b).

NameCountry
1bDrift1.860.814.000
1. Press-fit oil seals (1a) to the valve guides using tools (1b) and (1c).

NameCountry
1bFitting tool1.860.313.000

NameCountry
1cDrift1.867.019.000
Fit the valve spring.Fit the upper valve shim.1. Fit cotters (1a) using tool (1b).

NameCountry
1bTool1.860.644.000
Work in the same way on the other valves.
Release the cylinder head from the vice.Remove the wooden board supporting the valves.Refit the cylinder head in the vice.Fit the cups complete with valve clearance adjustment pads into their original positions prior to dismantling.Fit the camshaft.1. Fit the camshaft caps into their original positions prior to dismantling.
Spread LOCTITE 573 on the surfaces where camshaft caps 1 and 5 come into contact with the cylinder head.
Fit the camshaft journal lubrication pipe.2. Tighten the camshaft cap bolts to torque.

FasteningComponentØValue(daNm)
2BoltCAMSHAFT CAPSM71.3 - 1.6
1. Fit camshaft front oil seal (1a) using tool (1b).

NameCountry
1bFitting tool1.860.824.000
2. Fit the glow plugs and tighten them to torque.
NameConnector
2Heater plug A40

FasteningComponentØValue(daNm)
2-GLOW PLUGSM121.3 - 1.6
1. Fit the injector bracket support pads.2. Fit injectors (2a) complete with seals (2b).
NameConnector
2aInjector N70
3. Fit injector brackets (3a) and tighten nuts (3b) to torque.

FasteningComponentØValue(daNm)
3bNutINJECTORS(DIESEL)M82.6 - 3.2
4. Fit the fuel return pipe for lubricating the injectors (4a) and fix them using the clips (4b).
1. Fit the water pump (1a), complete with a new O-ring (1b), and tighten the bolts (1c) to torque.

FasteningComponentØValue(daNm)
1cBoltCOOLANT PUMPM62.1 - 2.6
2. Fit timing sensor (2a) and tighten bolts (2b).
NameConnector
2aTiming sensor. K47
3. Fit the driven pulley.4. Tighten driven toothed pulley bolt (4a) to torque, using tool (4b).

FasteningComponentØValue(daNm)
4aBoltTIMING DUCT PULLEYM1210.2 - 12.6

NameCountry
4bSupport for counter-torque1.860.831.000
Check that the valve clearance, with the valves in the closed position, is within the recommended values. if not replace the valve clearance adjustment shims as described below.

MeasurementValue
-Clearance with valve in closed position (mm)Exhaust0.30 - 0.40
Inlet0.25 - 0.35
1. Lower the tappet in question using the tool.

NameCountry
1Lever1.860.443.000
2. Fit the tool to lock the cup in lowered position.

NameCountry
2Lever1.860.724.000
Remove the tool.

NameCountry
-Lever1.860.443.000
Extract the valve clearance adjustment pad and replace it with another of a suitable size.Remove the tool.

NameCountry
-Lever1.860.724.000
Fit the gasket.1. Fit thermostat (1a), complete with pipes and sensors, and tighten bolts (2b) to torque.

FasteningComponentØValue(daNm)
-BoltCOOLANT PUMP PULLEYM62.1 - 2.6
2. Fit vacuum pump (2a) with its gasket and tighten bolts (2b) to torque.

FasteningComponentØValue(daNm)
3bBoltBRAKE SERVO VACUUM PUMPM62.1 - 2.6
1. Fit air intake manifold assembly (1a) and tighten nuts (1b).Connect the coolant return pipe to the expansion tank and the system vent pipe to the engine thermostat.Position the heater plugs supply cable and fix it using the nuts.
NameConnector
-Heater plug A40
2. Connect the fuel return pipe for lubricating the injectors (2a) to the fuel manifold and secure using clips (2b).3. Fit fuel distribution manifold (3a), complete with pipes and fuel pressure sensor (3b), and tighten nuts (3c).
NameConnector
-Fuel pressure sensor K83
4. Use a fixed wrench to bring the connectors on the pipes from the fuel manifold to the injectors, injector side, into contact, then tighten to the recommended torque using a fork-type torque wrench.

FasteningComponentØValue(daNm)
4ConnectorFUEL MANIFOLD LINE TO INJECTORSM14Injector side 1.9 - 2.3
5. Tighten connectors (5a) on the pipes from the fuel manifold to the injectors, manifold side, to torque using tool (5b).

FasteningComponentØValue(daNm)
5aBoltCAMSHAFT CAPSM71.3 - 1.6

NameCountry
5bKey1.852.138.000
Release the cylinder head from the vice.Unscrew the bolts and remove the tool from the mount.

NameCountry
-Support1.860.470.000
Retighten the stud.