1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL - Fiat - CROMA - eLearn

194002127 - 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL

) 1. Position the cylinder head in the vice using the support tool.

Tool	Description	Function	Validity
1860470001	Support	Overhaul cylinder head	1.82.21.9 JTD 8V1.9 JTD 16V

1. Undo the bolts (1a) and remove the flange complete with bracket (1b).2. Undo the bolts and remove the camshaft support cover, inlet side.

1. Undo the bolts (1a) and remove the camshaft caps (1b).

The rear inlet side camshaft cap has silicon sealant therefore a plastic hammer should be used for the removal.

2. Remove the camshafts.- Remove the camshaft front oil seals.

1. Remove the tappet rocker arms.2. Remove the hydraulic tappets.

1. Fit the valve support under the head.

Tool	Description	Function	Validity
2000003400	Support	Valve support	2.2

1. Fit the cotters (1a) using the tools (1b) and (1c).2. Remove the valve upper shim.3. Remove the valve spring.

Tool	Description	Function	Validity
1821058000	Lever	Valve spring compression lever	2.21.9 JTD 8V

Tool	Description	Function	Validity
2000002700	Chamber	Valve spring compression	2.2

1. Remove the valve guide oil seals (1a) with built in lower shim and the valve (1b).

Refitting ( Removing

) - Clean the contact surfaces between the cylinder head and the crankcase.- Check that the height of the cylinder head is within the recommended limits.

Measurement	Value		Validity
Cylinder head height (mm)	129		2.2 16V

- Check that the valves do 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.

Measurement	Value	Validity
Inlet valve stem diameter (mm)	5.955 ÷ 5.970	2.2 16V

Measurement	Value	Validity
Exhaust valve stem diameter (mm)	5.945 ÷ 5.960	2.2 16V

- Check that the diameter of the valve head corresponds to the recommended figures; if not, replace the worn valves.

Measurement	Value	Validity
Inlet valve head diameter (mm)	34.95 ÷ 35.25	2.2 16V

Measurement	Value	Validity
Exhaust valve head diameter (mm)	29.95 ÷ 30.25	2.2 16V

- Check that the nominal camshaft cam lift corresponds to the recommended figures; if not, replace the worn camshaft.

Measurement	Value	Validity
Nominal inlet shaft cam lift (mm)	5.95	2.2 16V

Measurement	Value	Validity
Nominal exhaust cam lift (mm)	5.95	2.2 16V

1. Temporarily position the valve (1a) in the seat and fit the tool (1b) for centering the valve guide oil seal (1c) on it.2. Fit the valve guide oil seal using the tool.

Tool	Description	Function	Validity
1860814001	Drift	Fit valve oil seal	2.21.9 JTD 8V

Tool	Description	Function	Validity
2000002600	Extractor/Fitting tool	Extracting/fitting valve guides	2.2

- Position the spring and the upper shim on the valve.- Place the cotters back in their housings using the tools.

Tool	Description	Function	Validity
1821058000	Lever	Valve spring compression lever	2.21.9 JTD 8V

Tool	Description	Function	Validity
2000002700	Chamber	Valve spring compression	2.2

- Carry out the same operations to refit the remaining valves.- Place the hydraulic tappets in their housings.- Place the camshafts in their housings.- Place the camshaft caps in their housings and secure them tightening the bolts to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
Camshaft caps	Bolt	M8x 1.25	(cylinder head side) 2.2	2.2

Component	Fastening	dia	Value (daNm)	Validity
Inlet side camshaft rear cover	Bolt	-	(cylinder head side) 0.9	2.2