753249 - 1016E22 Right CYLINDER HEAD - Overhaul - Dismantling

Removing ( Refitting ) 1. Place the tool A in the vice.
DescriptionCodeFunction
1 Support1.860.783.000-
2. Fit the tool (2a) A complete with the tool (2b) A.
DescriptionCodeFunction
2a Support1.860.784.000-
DescriptionCodeFunction
2b Bearings1.860.952.000-
3. Position the cylinder head (3a) on the support tools and fasten it using the nuts (3b).
1. Undo the bolts (1a) and remove the intake manifolds (1b).2. Undo the bolts (2a) and remove the fuel distribution manifold (2b) with injectors (2c).3. Remove the air intake manifold (3a) complete with gasket (3b).
1. Undo the bolts (1a) and remove the timing drive belt automatic belt tensioner (1b).2. Undo the bolt (2a) and remove the timing drive belt fixed belt tensioner (2b).
1. Loosen the bolts (1a) for the camshaft drive pullies using the tools (1b) A for counter-torque.
DescriptionCodeFunction
1b Support for counter-torque1.860.831.000Support
1. Remove the camshaft drive pullies (1a) using the tool (1b) A.
DescriptionCodeFunction
1b Extractor1.860.954.000-
1. Undo the bolts (1a) and remove the timing belt guard (1b).2. Undo the nuts (2a) and remove the reaction rod support (2b).
1. Undo the bolt (1a) and remove the coolant outlet connector (1b) from the right cylinder head.2. Undo the bolt (2a) and remove the cam angle sensor (2b) complete with O-Ring (2c).
- Check that the camshaft endfloat M is within the recommended values using a dial gauge on a mangetic base.
SubjectValue
.Camshafts-
-End float0.060 - 0.201
- If the camshaft endfloat does not correspond to the recommended figures, replace the worn components when reassembling.1. Undo the bolts (1a) and remove the camshaft caps (1b).2. Remove the camshafts.3. Remove the camshaft front oil seals.4. Remove the hydraulic tappets.5. Remove the spark plug seat seals.
1. 1. Remove the cotters (1a) using the tools (1b), (1c), (1d), (1e) and (1f) A.
DescriptionCodeFunction
1b Valve support1.860.786.000-
DescriptionCodeFunction
1c Special nut1.860.787.000-
DescriptionCodeFunction
1d Support1.860.788.000Removing/refitting valves
DescriptionCodeFunction
1e Chamber1.860.840.000-
DescriptionCodeFunction
1f Lever1.860.790.000-
2. Remove the valve upper shim.3. Remove the valve springs.- Remove the tools used for dismantling the valves.4. Remove the valve.- Carry out the same operations for removing the remaining valves.
1. Remove the valve guide oil seal (1a) using the tool (1b) A.
DescriptionCodeFunction
1b Extractor1.860.835.000-
2. Remove the spring lower seal (2a) and the valve lower shim (2b).
- Remove the cylinder head from the support tools and place it on a special workbench.1. Thread the special extraction tool (b) into the valve seat (1a).- Turn the cylinder head upsidedown on the workbench.- Remove the valve seat using the extraction tool.
1. Remove the valve guides (1a) using the tool (1b) A.
DescriptionCodeFunction
1b Extractor1.860.395.000-
Refitting ( Removing ) - Clean any residues of the old gasket from the lower cylinder head plane.1. Check that the planarity of the lower cylinder head plane M corresponds to the recommended values.
SubjectValue
1 Cylinder head-
-Lower plane planarity0.05
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 M.
SubjectValue
1 Cylinder head-
-Minimum permitted height after refacing134.85 - 135.15
- Check that the valves do not show signs of grooves or seizing.- Check that the diameter of the valve stems M corresponds to the recommended figures; if not, replace the worn valves.
SubjectValue
.Valves-
-Stem diameter6.965 - 6.980
- Check that the outer diameter of the hydraulic tappets M corresponds to the recommended figures; if not, replace the worn hydraulic tappets.
SubjectValue
.Hydraulic tappets-
-Outer diameter32.959 - 32.975
- Check that the diameter of the hydraulic tappet housings M corresponds to the recommended figures; if not, replace the cylinder head.
SubjectValue
.Cylinder head-
-Hydraulic tappet housing diameter33.000 - 33.025
- Check that the length of the valve springs M released corresponds to the recommended figures.
SubjectValue
.Valve springs-
--Free length
-Outer45
-Inner42
- Using a torque wrench, check that the spring M specifications correspond to the recommended figures; if not, replace the springs.
SubjectValue
.Valve springs-
-Length with load22.4 - 23.6
-Outer32.5
SubjectValue
.Valve springs-
-Length with load45.9 - 43.9
-Outer23
SubjectValue
.Valve springs-
-Length with load12.6 - 13.4
-Inner30.5
SubjectValue
.Valve springs-
-Length with load23.5 - 26.5
-Inner21
- Check that the diameter of the camshaft bearings M corresponds to the recommended figures; if not, replace the worn components.
SubjectValue
.Camshafts-
-Journal diameter26.959 - 26.980
- Check that the nominal camshaft cam lift M corresponds to the recommended figures; if not, replace the worn components.
SubjectValue
.Camshafts-
-Nominal cam lift9.30
1. Fit the camshaft caps on the right cylinder head following the order illustrated in the diagram.
1. Tighten the camshaft cap bolts to torque C.
Value - daNmFasteningComponentØ  
.1.8 - 2.5BoltCAMSHAFT CAPSM8
2. Check that the diameter of the camshaft supports M corresponds to the recommended figures; if not, replace the cylinder head.
SubjectValue
2 Cylinder head-
-Diameter of camshaft supports27.010 - 27.036
- Check that the outer diameter of the valve guides M to be fitted corresponds to the recommended figures.
SubjectValue
.Valve guides-
--Outer diameter
-Inlet12.040 - 12.051
-Exhaust12.050 - 12.068
SubjectValue
.Cylinder head valve guidesmm
-Valve guide oversize0.20
-Spares (*)12.053 - 12.064
SubjectValue
.Cylinder head valve guidesmm
-Valve guide oversize0.20
-Spares (**)12.064 - 12.082
1. Fit the valve guides (1a) using the tool (1b) A.
DescriptionCodeFunction
.Fitting tool1.860.947.000-
- Ream the valve guide inner diameter M to the recommended figure.
DescriptionCodeFunction
.Reamer1.890.313.000Ream
SubjectValue
.Valve guides-
-Inner diameter (reaming)7.000 - 7.015
- Check that the outer diameter of the valve seats M to be fitted corresponds to the recommended figures.
SubjectValue
.Valve seats-
--Outer diameter
-Inlet35.500 - 35.900
-Exhaust31.000 - 31.200
SubjectValue
.Cylinder head valve seats (all)mm
-Oversize0.3
SubjectValue
.Cylinder head valve seats (all)mm
-Oversize0.3
1. Heat the cylinder head to 100-120°C, then fit the valve seats (1a) using a suitable tool (1b).
DescriptionCodeFunction
1b Fitting tool1.860.395.000Fit
1. Regrind the valve seats to the recommended size M.
SubjectValue
1 Valve seats-
-Contact band taper with valve90° ± 20'
- Grind the valve seats using a suitable tool.
- Fit the cylinder head on the support tools and fasten it using the nuts.- Fit the lower valve shim and the lower valve seal.1. Fit the valve guide oil seal (1a) using the tool (1b) A.
DescriptionCodeFunction
1b Fitting tool1.860.454.000-
1. Fit the valves (1a) for the cylinder in question and support them using the tools (1b) and (1c) A.
DescriptionCodeFunction
1b Valve support1.860.786.000-
DescriptionCodeFunction
1c Special nut1.860.787.000-
2. Fit the valve springs.3. Fit the upper valve shims.4. Fit the cotters (4a) using the tools (4b), (4c), and (4d) A.
DescriptionCodeFunction
4b Support1.860.788.000Removing/refitting valves
DescriptionCodeFunction
4c Chamber1.860.840.000-
DescriptionCodeFunction
4d Lever1.860.790.000-
- Carry out the same operations to refit the remaining valves.- Remove the tools used for fitting the valves.
1. Fit the spark plug seat seals.2. Fit the hydraulic tappets.3. Fit the camshafts.
1. Fit the camshaft caps on the right cylinder head following the order illustrated in the diagram.
- Tighten the camshaft cap bolts to torque C.
Value - daNmFasteningComponentØ  
.1.8 - 2.5BoltCAMSHAFT CAPSM8
1. Fit the camshaft front oil seals (1a) using the tool (1b) A.
DescriptionCodeFunction
1b Fitting tool1.860.948.000Camshaft front oil seal
- Fit the cam angle sensor complete with O-Ring and fasten it using the bolt.
Value - daNmFasteningComponentØ  
.0.7 - 1.0BoltCAM ANGLE SENSOR
- Fit the right cylinder head coolant outlet connector and fasten it using the bolt.- Fit the reaction rod support and secure it using the nuts.
Value - daNmFasteningComponentØ  
.2.3 - 3.3NutsPOWER UNIT REACTION ROD-
- Fit the timing belt guard and secure it using the bolts.
Value - daNmFasteningComponentØ  
.0.8 - 1.2BoltsTIMING BELT PROTECTIVE COVER(S)-
1. Fit the camshaft drive pullies.2. Tighten the camshaft drive pulley bolts (2a) using the tools (2b) A to torque C.
DescriptionCodeFunction
2b Support for counter-torque1.860.831.000Support
Value - daNmFasteningComponentØ  
2a 7.3 - 10.6-CAMSHAFT DRIVE PULLIESM10
- Fit the timing drive belt fixed belt tensioner and fasten it using the bolt.- Fit the timing drive belt automatic belt tensioner and secure it without tightening the bolts.- Fit the intake manifold complete with gasket.- Fit the fuel distribution manifold complete with injectors and secure it using the fixing bolts.- Fit the intake manifolds and secure them using the bolts.- Remove the cylinder head from the support tools.- Remove the cylinder head support tools from the vice and put them down.