Renault Clio: M4R

Renault Clio III (2005-2013) Service Manual / Engine And Peripherals / Top And Front Of Engine / Cylinder head: Removal - Refitting / M4R

IMPORTANT

To avoid all risk of damage to the systems, apply the safety and cleanliness instructions and operation recommendations before carrying out any repair (see Engine: Precautions for the repair).

WARNING

It is strictly forbidden to apply any pressure to the engine oil sump. Damage to the sump will irreparably damage the engine by:

• blocking the strainer,
• raising the oil level above maximum, with a risk of engine racing.

REMOVAL

I - REMOVAL PREPARATION OPERATION

• Remove the " engine and gearbox " assembly (see 10A, Engine and cylinder block assembly, Engine - gearbox assembly: Removal - Refitting, 10A-161).

M4R, and 700

• Disconnect the manual gearbox from the engine (see Manual gearbox: Removal - Refitting) (21A, Manual gearbox).

M4R, and 701

• Disconnect the automatic gearbox from the engine (see Automatic gearbox: Removal - Refitting) (23A, Automatic transmission).

• Place the engine on the component support (see Engine support equipment: Use).
• Drain the engine (see 10A, Engine and cylinder block assembly, Engine oil: Draining - Refilling, 10A-12).
• Remove the accessories belt (see 11A, Top and front of engine, Accessories belt: Removal - Refitting, 11A-5).

M4R, and 700

• Immobilise the flywheel by fitting the tool (Mot. 919- 02) (1) on the cylinder block.

M4R, and 701

• Immobilise the drive plate by fitting the tool (Mot.919-02) (2) on the cylinder block.

• Remove:
  • the crankshaft accessories pulley (see 11A, Top and front of engine, Crankshaft accessories pulley: Removal - Refitting, 11A-31),
  • the (Mot. 919-02),
  • the crankshaft seal on the timing side (see 10A, Engine and cylinder block assembly, Crankshaft seal on timing end: Removal - Refitting, 10A-1),
  • the timing chain (see 11A, Top and front of engine, Timing chain: Removal - Refitting, 11A-170),
  • the throttle valve (see 12A, Fuel mixture, Throttle valve: Removal - Refitting, 12A-33),
  • the inlet distributor (see 12A, Fuel mixture, Inlet distributor: Removal - Refitting, 12A-45),
  • the ignition coils (see 17A, Ignition, Coils: Removal - Refitting, 17A-2),
  • the rocker cover (see 11A, Top and front of engine, Rocker cover: Removal - Refitting, 11A-183),
  • the timing sprockets (see Timing sprocket: Removal - Refitting),
  • the injector rail (see 13B, Diesel injection, Injector rail: Removal - Refitting, 13B-64),
  • the camshafts (see 11A, Top and front of engine, Camshaft: Removal - Refitting, 11A-247).

II - REMOVAL OF CYLINDER HEAD

• Remove the cooling hose (3).

• Remove:
  • the cylinder head bolts using a 1/2" female torx socket (12.7 mm square drive),
  • the cylinder head.

• Remove the cylinder head gasket (4) from the cylinder block.

REFITTING

I - REFITTING PREPARATION OPERATION

WARNING

Protect the oilway so that foreign bodies do not enter the oil pipes in the cylinder head.

Failure to follow this instruction could lead to the blocking of the oilways, resulting in a rapid deterioration of the camshaft.

WARNING

Do not scrape the joint faces of the aluminium, any damage caused to the joint face will result in a risk of leaks.

• Use SUPER CLEANING AGENT FOR JOINT FACES (see Vehicle: Parts and consumables for the repair) (04B, Consumables - Products) to clean:
  • the cylinder block gasket face,
  • the cylinder head joint face.
• Remove the residue using a plastic spatula.
• Finish cleaning the joint faces using a GREY ABRASIVE PAD (see Vehicle: Parts and consumables for the repair) (04B, Consumables - Products).

WARNING

To ensure proper sealing, the gasket surfaces must be clean, dry and not greasy (avoid any finger marks).

• Use SURFACE CLEANER (see Vehicle: Parts and consumables for the repair) (04B, Consumables - Products) to clean:
  • the cylinder block gasket face,
  • the cylinder head joint face.
• Parts always to be replaced:
  • the cylinder head gasket,
  • the cylinder head bolts.

II - OPERATION FOR REFITTING THE CYLINDER HEAD

• Position piston 1 at Top Dead Centre.
• Check for the cylinder head centring dowels on the cylinder block.
• Refit:
  • the new cylinder head gasket on the cylinder block,
  • the cylinder head,
  • the new cylinder head bolts.

Note: Do not retighten the cylinder head bolts after applying this procedure.

• Tighten in order and to torque the cylinder head bolts (40 N.m).
• Tighten to angle and in order the cylinder head bolts (100

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