Valve tappets - check and adjust clearance, if necessary
- Make
- Fiat
- Model
- Croma Factory Service Manual
- Year
- 2005–2010
- Section
- Timing system › Valve tappets - check and adjust clearance, if necessary
VALVE TAPPETS - CHECK AND ADJUST CLEARANCE, IF NECESSARY
Op. 1016A10 SOUND-PROOFING COVER - R.R
Op. 1036H14 VALVE TAPPETS - CHECK CLEARANCE
1. Lower the tappet in question using the tool.
| Tool | Description | Function | Validity |
|---|---|---|---|
| 1860443000 | Lever | Lower valve tappets | 1.9 JTD 8V |
2. Fit the tool for keeping the tappet lowered, then remove the pressure lever positioned previously.
| Tool | Description | Function | Validity |
|---|---|---|---|
| 1860724001 | Lever | Keep valve tappets lowered | 1.9 JTD 8V |
3. Remove the valve clearanance adjustment plate and replace it with a one of a suitable thickness.
- Remove the tool for keeping the tappet lowered.
- Continue, repeating the procedure described for the remaining valves.
Op. 1016A10 SOUND-PROOFING COVER - R.R
Removing
Op. 1016A40 IGNITION COIL COVER ON CYLINDER HEAD - R+R
Op. 5510C14 IGNITION COIL/S - R.R.
Op. 1016A20 SINGLE TAPPET COVER -R.R AND REPLACE GASKET
- Adjust the bolt fixing the auxiliary shaft drive pulley until the valve concerned is in the closed position (cams facing upwards).
1. With the engine cold, use a feeler gauge to check that the valve clearance is within the specified limits with the valves closed.
| Measurement | Value | Validity |
|---|---|---|
| Inlet valve clearance in closed position (mm) | 0.21 ÷ 0.29 | 1.8 |
| Measurement | Value | Validity |
|---|---|---|
| Exhaust valve clearance in closed position (mm) | 0.27 ÷ 0.35 | 1.8 |
- If the tappet clearance is not within the recommended tolerance, remove the camshaft involved and replace the cups selecting the size according to the required clearance.
The tappet cups are graded according to size and therefore the list of Spare Parts should be consulted when selecting the new cup to be fitted. The code is on the cup crown.
Op. 1036C41 PHASE TRANSFORMER ON OVERHEAD CAMSHAFT (ONE) INTAKE EXHAUST ON CYLINDER HEAD - R.R.
Op. 1008B10 POWER UNIT FRONT SUPPORT FLEXIBLE MOUNTING (TIMING SIDE) - REPLACE
Op. 1008A46 POWER UNIT RIGID SUPPORT - TIMING SIDE - R.R.
Op. 1032C10 TIMING SYSTEM MOVING TENSIONER - R.R WITH TIMING BELT/CHAIN REMOVED
Op. 1032D31 PROTECTIVE TIMING INNER COVER - R.R. WITH TIMING BELT REMOVED
1. Remove the cup involved in the adjustment from its housing.
Refitting
- Place the new cup in position.
Op. 1032D31 PROTECTIVE TIMING INNER COVER - R.R. WITH TIMING BELT REMOVED
Op. 1032C10 TIMING SYSTEM MOVING TENSIONER - R.R WITH TIMING BELT/CHAIN REMOVED
Op. 1008A46 POWER UNIT RIGID SUPPORT - TIMING SIDE - R.R.
Op. 1008B10 POWER UNIT FRONT SUPPORT FLEXIBLE MOUNTING (TIMING SIDE) - REPLACE
Op. 1036C41 PHASE TRANSFORMER ON OVERHEAD CAMSHAFT (ONE) INTAKE EXHAUST ON CYLINDER HEAD - R.R.
- After fitting the new cups, repeat the procedure for checking the tappet clearance.
Op. 1016A20 SINGLE TAPPET COVER -R.R AND REPLACE GASKET
Parts & tools for this job For 2005 Fiat Croma
- PARTEngine gasket setSearch: Fiat Croma 2005 engine gasket set
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLFeeler gauge setSearch: feeler gauge set
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