Engine - Removal, Replacement and Installation (Xc): Maintenance Volvo V70 II

Draining the fuel line

Lower the car.

Drain the fuel line. See Fuel system pressure release .

Scheme 595

Remove

1. the engine stabilizer brace between the suspension turrets.
2. the ground strips between the engine and the bulkhead
3. the heat deflector plate above the turbocharger (TC).
4. the plastic charge air pipe above the engine. Seal the openings
5. the cover over the ignition coils
6. the upper engine coolant hose for the engine and radiator
7. the screw holding the dip stick pipe to the intake manifold.
8. the brake vacuum hose from the intake manifold.

Undo the clamp holding the plastic charge air pipe to the electronic throttle module.

Scheme 596

Remove

1. the connector from the mass air flow (MAF) sensor.
2. the intake hose from the mass air flow (MAF) sensor. Seal the opening.

Release the hoses from the bracket at the rear of the cylinder head. Remove the bracket.

Remove

1. the clamp for the positive lead at the rear of the cylinder head
2. the torque bracket.
3. the pipe screw for the water-heated crankcase ventilation.

Scheme 597

Removing the fuel rail

Remove the clamp for the injector wiring at the rear of the cylinder head.

Separate the fuel line quick-release connector.

Remove the fuel rail mounting screws.

Spray universal oil or similar around the injector connectors on the intake manifold.

Gently work the fuel rail and injectors loose.

Carefully put the fuel rail to one side.

Removing ignition coils

Mark up the ignition coils so that the original positions can be established.

Remove the mounting screws for the ignition coils and the screws at the two ground terminals.

Disconnect the connector for the variable valve timing solenoid.

Lift up and place the ignition coils and wiring to one side.

Remove

1. the crankcase ventilation hose from the top of the camshaft cover
2. the camshaft position sensor (CMP) housing and trigger wheel
3. the cover at the rear edge of the intake camshaft.

Scheme 598

Remove

1. the EVAP hose from the intake manifold
2. the by-pass valve vacuum hose
3. the upper row of screws holding the intake manifold to the cylinder head. Slacken off the lower screws
4. the pipe screw for the crankcase ventilation from the underside of the intake manifold.

Disconnect the connector for the electronic throttle module.

Lift up and remove the intake manifold.

Note. Make sure that the fuel delivery pipe is not damaged.

Scheme 599

Disconnect the connectors for the ABS sensor and level sensor in the expansion tank.

Lift up the expansion tank and servo oil reservoir. Place them on top of the engine.

Note. Make sure that power steering fluid does not leak from the breather hole in the filler cap.

Take off the auxiliaries belt.

Remove

1. the front timing cover
2. the hose for the water-heated crankcase ventilation from the thermostat housing.

Separate the connector for the engine coolant temperature (ECT) sensor.

Scheme 600

Remove the nuts from the cover on the wing liner.

Position the upper timing cover.

Turn the crankshaft clockwise until the markings on the crankshaft and camshafts correspond.

Remove the upper timing cover.

Scheme 601

Slacken off the center screw for the belt tensioner slightly.

Hold the center screw secure and turn the tensioner eccentric clockwise with a 6 mm Allen key to 10 o'clock.

Remove

1. the timing belt from the timing gear pulley
2. the screw that holds the inner timing cover to the cylinder head.

Install tool 9995452 at the rear of the camshafts.

Scheme 602

Remove the cable duct from its mountings on the right-hand suspension turret.

Note. Do not damage the paintwork.

Hold the cable duct out of the way and remove

1. the plug at the front of the variable valve timing unit (TX55)
2. the center screw in the variable valve timing unit (TX55).

Carefully pull out the timing gear pulley with the variable valve timing (VVT) unit.

Timing gear pulleys without variable valve timing units

Remove the screws and remove the timing belt pulley.

Remove tool 9995452 .

Scheme 603

Remove

1. the upper coolant pipe with the hose
2. the heat deflector plate above the manifold
3. the oil pressure pipe for the turbocharger (TC)
4. the pipe screw at the lower coolant pipe for the turbocharger (TC). Put the pipe to one side.
5. the nuts and washers holding the manifold to the cylinder head.

Lift off the turbocharger and manifold. Carefully put them on top of the gearbox.

Scheme 604

Remove

1. the screw that holds the inlet pipe for the coolant pump on the cylinder block
2. the two screws for the connection between the coolant pipe and the bypass channel. Carefully turn the pipe to remove it from the cylinder block.

Scheme 605

Remove the spark plugs from cylinders 1 and 5.

Install 2 tools 9995454 . Leave a 2-3 mm gap to the camshaft cover.

Make sure that the screw in the spark plug thread is tightened all the way down. VVT-solenoid.

Remove all the screws securing the camshaft cover to the cylinder head.

Scheme 606

Use pliers 9995670 to lift the cover from the cylinder head.

Install the pliers at the stop lugs. Start with cylinder 1 and work alternately backward.

Slacken off the wing nuts approximately 2 turns. Repeat the procedure.

Scheme 607

Carefully press out the front and rear camshaft seals.

Scheme 608

Remove

1. tools «9995454»(ref-403953-S30108818292011061000000) .
2. the camshaft cover
3. the camshafts
4. the screws holding the cylinder head onto the cylinder block. Start at the sides and work alternately towards the center.

Get help to lift off the cylinder head.

Note. Work very carefully to avoid damaging the contact faces.

Draining coolant

Raise the car.

Remove the splash guard under the engine.

Open the engine nipple.

Drain the coolant into a container.

Close the nipple.

Drain the fuel line. See Fuel system pressure release . See also: Fuel system, quick-release connectors .

Remove the cover from the expansion tank.