We install the cylinder head after repair, inspection and defect detection.

Before installing the cylinder head, set the cylinder pistons to the middle of the stroke.

It is necessary to degrease the seating surfaces of the block head and cylinder block.

We check the presence of a guide sleeve on the cylinder block.

Attach tool Mot. 104 or the cut-off pin to the cylinder block as a second guide.

Install the cylinder head gasket on the cylinder block.

Install the block head.

Unscrew tool Mot. 104 or the cut-off pin as a second guide.

Установка головки блока цилиндров двигателя К4М

We tighten the bolts of the block head in the sequence shown in Figure 1 to a torque of 20 ± 2 Nm.

After tightening the bolts, turn all the bolts in the indicated sequence by an angle of 240 ± 6˚.

Установка головки блока цилиндров двигателя К4М

We install hydraulic valve lifters (Fig. 2).

We check the performance of the hydraulic pushers: - we press on the upper part of the hydraulic pusher, if the cylinder is pressed in easily, then the hydraulic pusher may be clogged with resins.

You need to immerse the hydraulic pusher in kerosene or diesel fuel to dissolve the tar.

After that, you need to immerse the hydraulic pusher in oil and check again.

If after that the hydraulic lifter does not become elastic, then the hydraulic lifter is faulty and needs to be replaced.

Установка головки блока цилиндров двигателя К4М

Install the rocker arms (Fig. 3).

Lubricate the camshaft bearings with engine oil.

Установка головки блока цилиндров двигателя К4М

We install camshafts (see Removing camshafts and hydraulic lifters K4M Nissan Almera).

Degrease the seating surface of the cylinder head and cylinder head cover.

Установка головки блока цилиндров двигателя К4М

Roll with Loctite 518 until it turns reddish.

If sealant gets on the camshaft bearings, be sure to wipe it off.

Install the cylinder head cover.

Установка головки блока цилиндров двигателя К4М

We tighten the cylinder head cover in the order shown in Figure 6 in stages:

1st stage - bolts 22, 23, 20 and 13 with a tightening torque of 8 Nm (0.8 kgf.m);

2nd stage - bolts 1 - 12, 14 - 19, 21 and 24 with a tightening torque of 15 Nm (1.5 kgf.m);

3rd stage - loosen bolts 22, 23, 20 and 13;

4th stage - tighten bolts 22, 23, 20 and 13 with a tightening torque of 15 Nm (1.5 kgf.m).

Установка головки блока цилиндров двигателя К4М

Unscrew the eccentric cam follower locking bolt (1) from tool Mot. 1669 (see fig. 7).

Screw in the standard eccentric cam follower locking bolt (2) by applying a drop of Loctite Frenetanch (adhesive sealant) to its threads.

Tighten the eccentric cam follower locking bolt to 15 Nm.

Установка головки блока цилиндров двигателя К4М

Apply Loctite 518 to the seating surface of the oil separator cover (Figure 8).

Installing the oil separator cover.

Установка головки блока цилиндров двигателя К4М

Tighten the new oil separator mounting bolts in the unthreaded holes, new or old oil separator cover fastening bolts in the threaded holes in the specified order with the required torque (see Fig. 9).

Установка головки блока цилиндров двигателя К4М

Install the camshaft dephaser solenoid valve oil seal using tool Mot. 1513 (see Fig. 10) and the solenoid valve of the inlet camshaft dephaser.

Tighten the bolts of the inlet camshaft phase regulator solenoid valve to a torque of 10 Nm.

Установка головки блока цилиндров двигателя К4МУстановка головки блока цилиндров двигателя К4М

Install with tool (2) Mot. 1503 plug of the cylinder head cover (1) (Figure 11).

Apply GRAISSEFLUORE grease (strip width 2 mm) to all four ignition coils along the inner circumference of the high voltage wire cap (Figure 12).

We wrap the spark plugs. We install the ignition coils in place.

Установка головки блока цилиндров двигателя К4МУстановка головки блока цилиндров двигателя К4М

We install in place the camshaft sensor with a new gasket (Figure 13).

Install the inlet pipe gaskets and install the inlet pipe.

Tighten the inlet pipe in accordance with Figure 14.

Further assembly is carried out in the reverse order of disassembly.

Tightening torques of fasteners when installing the cylinder head:

Node - Torque Nm

Cylinder head cover bolts 1 to 12, 14 to 19, and 21 to 24 to 15

Bolts of fastening of a cover of a head of cylinders 13, 20, 22, 23 - 15

Eccentric Cam Follower Locking Bolt - 15

New oil separator mounting bolts in unthreaded holes - 15

New or Old Oil Separator Bolts in Threaded Holes - 10

Intake Camshaft Phaser Solenoid Valve Bolt - 10

Candles - 25-30

Ignition coil retaining bolts - 15

Camshaft sensor retaining bolt - 10

Inlet pipe retaining bolts - 9

Timing belt idler bolt - 45

Nut for fastening the axle of the tensioning roller of the timing drive - 27

Plug of the hole for the fixer TDC - 20

Timing drive upper cover retaining bolts - 41

Throttle body retaining bolts - 11

Lifting Eye Bolts (Flywheel Side) - 10

Lifting eye bolts (timing side) - 35