199000425 - 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL

Removing ( Refitting ) 1. Position the cylinder head (1a) in the vice supporting it using the support tool (1b).
ToolDescriptionFunctionValidity
1860470000MountHead overhaul1.2 8v1.4 8v1.4 16v1.3 Multijet1.9 Multijet
2. Unscrew the spark plugs and remove them.3. Undo the bolts (3a) and remove the thermostat (3b) complete with O-ring.
1. Undo the nut (1a) and remove the moving timing belt tensioner (1b).
1. Fit the valve retaining tool beneath the cylinder head.
ToolDescriptionFunctionValidity
1860786000BaseValve retention1.4 16v
2. Fit the cotters (2a) using the tools (2b) and (2c).
ToolDescriptionFunctionValidity
1860644000LeverDismantling valves1.4 16v
ToolDescriptionFunctionValidity
1870890000ChamberDismantling valves1.4 16v
3. Fit the upper valve shims.4. Remove the valve springs.5. Remove the valves.
1. Use the tool (1a) to remove the oil seals (1b) from the valve guides.
ToolDescriptionFunctionValidity
1870894000ExtractorValve guide oil seal extraction1.4 16v1.9 Multijet
2. Fit the lower valve shims.
- Remove the valve retaining tool and keep the valves.- Loosen the vice, remove the cylinder head and place it on the bench.- Remove the cylinder head support tool.    Op. 1016E14 VALVE GUIDES IN SINGLE CYLINDER HEAD - REPLACE DURING OP. 1016E10 Refitting ( Removing ) - De-carbonize and clean the valve seats and ducts.- Clean any residues of the old gasket from the lower cylinder head plane.- Check that the cylinder head plane flatness is within the recommended values.
MeasurementValueValidity
Cylinder head support surface flatness (mm)< 0.11.2 8v1.4 8v1.4 16v1.9 Multijet
- If necessary, flatten the lower cylinder head surface; it is permitted to remove 0.1 mm of material from the minimum cylinder head height (factory value).
MeasurementValueValidity
Cylinder head height (factory value) (mm)77 +/- 0.21.4 16v
1. Check that the refacing has not changed any of the combustion chambers in the areas or else the head must be replaced.
- Also check all the combustion chambers proceeding as follows:1. Fit the valves and spark plugs provisionally. Take a graduated burette containing a known amount of engine oil.2. Rest a glass plate on the cylinder head with holes corresponding to the combustion chambers.3. Fill the combustion chamber completely, taking care not to pour oil outside the combustion chamber.- Wait about 10 minutes to allow the oil to decant.- Measure the amount of oil remaining in the burette and then calculate the difference between this and the amount of oil used initially with the burette full. The difference is the volume of the chamber.- Check that this value is within specified values, otherwise replace the cylinder head.
MeasurementValueValidity
Combustion chamber volume (cc)141.4 16v
- Check that the valve stem does not show signs of grooves or seizing.- Check that the diameter of the valve stems corresponds to the recommended figures; if not, replace the worn valves.
MeasurementValueValidity
Inlet valve stem diameter (mm)5.982 ÷ 6.0001.4 16v
MeasurementValueValidity
Exhaust valve stem diameter (mm)5.974 ÷ 5.9921.4 16v
- Check that the diameter of the valve head corresponds to the recommended figures; if not, replace the valves.
MeasurementValueValidity
Intake valve outer diameter (mm)27.020 ÷ 27.0501.4 16v
MeasurementValueValidity
Exhaust valve outer diameter (mm)22.520 ÷ 22.5501.4 16v
- Check that the inner diameter of the valve guide and the clearance between it and the valve are within specified values, otherwise replace the valve guide.- If necessary, replace the valve guides, refer to    Op. 1016E14 VALVE GUIDES IN SINGLE CYLINDER HEAD - REPLACE DURING OP. 1016E10
MeasurementValueValidity
Valve guide inner diameter (mm)6.022 ÷ 6.0401.4 16v
MeasurementValueValidity
Inlet valve/valve guide clearance (mm)0.022 ÷ 0.0581.2 8v1.4 8v1.4 16v
MeasurementValueValidity
Exhaust valve/valve guide clearance (mm)0.030 ÷ 0.0661.2 8v1.4 8v1.4 16v
- Using special equipment, check that the valve spring specifications are within the recommended values; if this is not the case, replace the components that do not comply.
MeasurementValueValidity
Valve spring height released (mm)46.91.4 16v
MeasurementValueValidity
Height of valve springs under a load of 14.9 - 16.5 daN (mm)37.521.4 16v
MeasurementValueValidity
Height of valve springs under a load of 31.1 - 34.1 daN (mm)30.01.4 16v
1. Fit the lower valve shims (1a); place the oil seals (1b) on the valve guides, positioning the drift guide (1c) on the valve stem fitted provisionally in its seat, then fit a new oil seal on the drift.2. Fit the oil seal in its housing using the fitting tool.
ToolDescriptionFunctionValidity
1860993000Installing toolFitting valve guide oil sealing ring1.4 16v
- Refit the valves, springs, upper plates and caps using the same equipment as for the dismantling.- Position the timing belt moving tensioner in its housing and secure it without tightening the nut.- Place the thermostat in its housing with the new O-ring and secure it by tightening the bolts to the recommended torque.
ComponentFasteningdia  Value (daNm)Validity
ThermostatBoltM60.9 ÷ 1.11.4 16v
- Fit the spark plugs and tighten them to the recommended torque.
ComponentFasteningdia  Value (daNm)Validity
Spark plugs-M121.6 ÷ 2.01.4 16v
- Undo the nuts and remove the cylinder head from the support tool.