We remove the cylinder head to replace the gasket under the cylinder head and for repair

On the K7J and K7M engine

Relieve the pressure in the fuel system (described in the article - Checking the fuel pressure of a Renault car Sandero)

Disconnect the negative battery terminal

Draining the coolant from the engine cooling system

Remove the timing belt from the camshaft pulley (described in the article - Checking and replacing the timing belt of a Renault Sandero car)

Removing and installing the Renault Sandero cylinder head

Disconnect the exhaust pipe from the exhaust manifold

Removing and installing the Renault Sandero cylinder head

Remove the air filter (described in the article How to replace Renault Sandero engine air filter element)

Removal and installation of the cylinder head of a Renault Sandero

Disconnect the wire blocks from the injectors

Removing and installing the Renault Sandero cylinder head

Disconnect the wiring harness from the throttle position sensor

Removing and installing the Renault Sandero cylinder head

Disconnect the block from the absolute pressure sensor

Removing and installing the Renault Sandero cylinder head

Disconnect the wiring harness from the coolant sensor

Removing and installing the Renault Sandero cylinder head

Disconnect the intake air temperature sensor block

Removal and installation of the cylinder head of a Renault Sandero

Disconnect the wiring harness from the idle speed sensor

Removing and installing the Renault Sandero cylinder head

Disconnect the oxygen concentration sensor harness connector

Removing and installing the Renault Sandero cylinder head

We remove the oxygen concentration sensor wiring harness from the holder on the engine

Removing and installing the Renault Sandero cylinder head

We unscrew the nut securing the spacer to the intake pipe and unscrew the bolt of its fastening connection to the cylinder block

Removing and installing the Renault Sandero cylinder head

Remove the spacer

Removing and installing the Renault Sandero cylinder head

Remove the engine harness from the holder on the rear intake pipe

Removal and installation of the cylinder head of a Renault Sandero

Bringing out the engine wiring harness from the front

Removing and installing the Renault Sandero cylinder head

Using a screwdriver, unfasten the upper holders of the motor harness in front

Removing and installing the Renault Sandero cylinder head

Unfasten the holder at the back

Removal and installation of the cylinder head of a Renault Sandero

Remove the harness from the front holder

Removing and installing the Renault Sandero cylinder head

Remove the harness from the rear holder

Removing and installing the Renault Sandero cylinder head

Remove the harness from the middle upper holder on the inlet pipe

Removing and installing the Renault Sandero cylinder head

Take the tourniquet to the side

Removal and installation of the cylinder head of a Renault Sandero

Remove the end of the throttle cable from the lever

Removal and installation of the cylinder head of a Renault Sandero

Remove the cable from the bracket hole and set it aside

Removing and installing the Renault Sandero cylinder head

Disconnect the adsorber purge hose from the inlet pipe

Removing and installing the Renault Sandero cylinder head

Disconnect the fuel line from the fuel rail

Removal and installation of the cylinder head of a Renault Sandero

Disconnect the hose to the vacuum brake booster from the inlet pipe by squeezing the latches of its fastening

Removing and installing cylinder head from Renault Sandero

We loosen the clamps of the three hoses with pliers and move the clamps along the hoses

Removing and installing the Renault Sandero cylinder head

Disconnect the hoses from the thermostat pipes and the cylinder head

Removing and installing the Renault Sandero cylinder head

Remove the heater hoses from the holders on the bracket

Removing and installing the Renault Sandero cylinder head

Unscrew the ground wire bolt

Removing and installing the Renault Sandero cylinder head

Disconnecting the wire

Removing and installing the Renault Sandero cylinder head

We unscrew the bolt securing the power steering pump bracket to the block head

Removing and installing the Renault Sandero cylinder head

Remove the cylinder block cover (article - Replacing the Renault Sandero cylinder head cover gasket)

Removing and installing the Renault Sandero cylinder head

Weaken the tightening of the cylinder head bolts in the order indicated in the photo, in several stages

Removing and installing the Renault Sandero cylinder head

Finally unscrew the head mounting bolts and remove them

Removing and installing the Renault Sandero cylinder head

Retrieve the washers installed under the bolts

Removing and installing the Renault Sandero cylinder head

Bolts of different lengths, when removing, you need to remember the location of the bolts

Removing and installing the Renault Sandero cylinder head

Remove the cylinder head assembly with the intake pipe, throttle assembly and exhaust manifold

Removing and installing the Renault Sandero cylinder head

Remove the cylinder head gasket

Removing and installing the cylinder head of a Renault Sandero

Clean the mating surfaces of the head and block

Check the block head for warping with a feeler gauge and a ruler

We put the ruler first in the middle along, then across, and also diagonally and with a probe we check the gap between the plane of the head and the ruler.

Replace the cylinder head if the gap is more than 0.05 mm.

Install the cylinder head in reverse order

Removing and installing the Renault Sandero cylinder head

We remove oil or coolant from the threaded holes of the cylinder head that got there when the head was removed

Installing a new head gasket

Lubricate the bolts with a thin layer of engine oil

Removing and installing the Renault Sandero cylinder head

We tighten the bolts on a cold engine in the order shown in the photo in four stages:

  • - the first stage - we tighten the bolts with a torque of 20 Nm, after which tighten by 100˚ ± 6˚. We are waiting for three minutes;
  • - the second stage - loosen bolts 1 and 2, then tighten them again with a torque of 20 Nm and tighten by an angle of 110˚±6˚;
  • - the third stage - we loosen the bolts 3, 4, 5 and 6, after which we tighten them again with a torque of 20 Nm and tighten them by an angle of 110˚±6˚

Install all parts and assemblies in reverse order

Adjusting the timing belt tension and replacing the timing belt of a Renault Sandero and the accessory drive belt (article - Checking and replacing the Renault Sandero auxiliary drive belt)

Checking and adjusting valve clearances

Installing the cylinder head cover

Install the air filter and fill in the coolant

Removing the cylinder head on the K4M engine

Relieve the fuel pressure in the fuel system

Disconnect the negative battery terminal

Draining the coolant from the engine cooling system

Disconnect the exhaust pipe from the exhaust manifold

Disconnect the wiring harness pads from the injectors

Disconnect the wire blocks from the throttle position, absolute pressure, coolant temperature, intake air temperature, oxygen concentration sensors;

  • - idle control;
  • - ignition coils.

Remove the air filter

Remove the motor wiring harness from the holders on the engine and set it aside

Remove ignition coils

Disconnect the throttle cable from the throttle assembly

Removing and installing the Renault Sandero cylinder head

Remove the cable from the receiver bracket and set it aside

Removing and installing the Renault Sandero cylinder head

Disconnect the adsorber purge hose from the inlet pipe

Disconnect the fuel line from the fuel rail

Receiver mounting bolts, five front bolts and two rear bolts

We unscrew the seven bolts securing the receiver to the cylinder block cover

Removing the receiver

Removing and installing the Renault Sandero cylinder head

Disconnect the hose to the vacuum brake booster from the inlet pipe by squeezing the latches of its fastening

Removing and installing the Renault Sandero cylinder head

We loosen the clamps of the three hoses, squeezing their bent antennae with pliers, move the clamps along the hoses

Removing and installing the Renault Sandero cylinder head

Disconnect the hoses from the thermostat pipes and the cylinder head

We unscrew the bolts of the power steering pump and move the pump to the side

Removing and installing the Renault Sandero cylinder head

Removing the fuel rail protection

Remove the cylinder head cover

Remove the camshafts

Removing and installing the Renault Sandero cylinder head

Unscrew the ten cylinder head bolts with a Torx E14 socket head and remove the bolts

Removing and installing the cylinder head of a Renault Sandero car

Remove the cylinder head assembly with the exhaust manifold

Removal and installation of the cylinder head of a Renault Sandero

Removing the gasket

Removing and installing the Renault Sandero cylinder head

Clean the mating surface of the head and block

Check the block head for warping with a feeler gauge and a ruler

We put the ruler first in the middle along, then across, and also diagonally and with a probe we check the gap between the plane of the head and the ruler.

Replace the cylinder head if the gap is more than 0.05 mm.

Install the cylinder head in reverse order

Removal and installation of the cylinder head of a Renault Sandero

We remove oil and coolant from the threaded holes of the cylinder head bolts that got there when the head was removed.

Installing a new gasket

Replacing the bolts with new ones

Lubricate the bolts with engine oil

Removing and installing the Renault Sandero cylinder head

We tighten the bolts in the order shown in the photo in two stages:

  • - the first stage (preliminary settlement) - tighten the bolts with a torque of 20 Nm;
  • - the second stage - we tighten the bolts at an angle of 240˚±6˚

Removal and installation of the cylinder head of a Renault Sandero

In the photo, an example is turned bolts to a certain angle.

Install all removed parts and assemblies in reverse order.

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