Ford Galaxy / Ford S-MAX. Manual — part 191

Description

Camshaft pulley

Spring-loaded locking pin

Rotor

Rotor vane

Plunger

Return spring

VCT oil control solenoid

Duct connected to chamber (a)

Duct connected to chamber (b)

Oil feed duct

Oil return duct

When the VCT control unit is being advanced, the chamber (a) fills with engine oil. The
rotor (3) starts to turn counter-clockwise as a result of the EOP prevailing in the chamber
(a). This completes the advance adjustment. The engine oil returning from the chamber (b)
flows via the oil return duct (D) to the VCT oil control solenoid and from there back into the
oil pan.

VCT oil control solenoid

The VCT oil control solenoids are located in the front area in the centre on the valve cover.
The purpose of the VCT oil control solenoids is to supply engine oil to the VCT control units
in accordance with the actuation by the PCM. This causes the camshaft/valve timing to be
either advanced or retarded.

Cylinder block

Item

1

2

3

4

5

6

7

A

B

C

D

Part Number

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Description

Cylinder block

Ladder frame

Oil pan

The cylinder block consists of three parts. These are the cylinder block, ladder frame and oil
pan.

The cylinder block has five cylinder liners made of cast iron, which cannot be replaced.

The ladder frame serves as a reinforcement and also forms the lower crankshaft bearings.

The oil pan supports the sturdy construction and serves as an additional reinforcement.

Crankshaft

Item

1

2

3

Part Number

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-

-

Description

Crankshaft

Timing belt pulley

Cylindrical pin

Timing belt pulley splines

Wide spline

Crankshaft outer splines

Crankshaft inner splines

The forged crankshaft in the 2.5L Duratec-ST (VI5) engine is supported in the cylinder
block (upper crankshaft bearings) and in the ladder frame (lower crankshaft bearings) by
six bearings.

The shims are located at the 5th crankshaft main bearing.

Located on the drive side of the crankshaft are two sets of splines. The inner splines drive
the oil pump. The outer splines engage in the timing belt pulley.

The timing belt pulley can only be pushed onto the outer shaft splines in one specific
position. For this purpose, one spline on the timing belt pulley and one on the crankshaft
have been made wider.

The cylindrical pin secures the mass damper.

Valve timing

Item

1

2

3

4

5

6

7

Part Number

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-

-

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Timing marks

Description

Exhaust camshaft pulley timing mark

Engine front cover with timing marks

Intake camshaft pulley timing mark

Intake camshaft pulley

Exhaust camshaft pulley

Crankshaft timing belt pulley timing mark

Crankshaft timing belt pulley

Crankshaft

When checking the valve timing, ensure that the timing marks are aligned exactly.

The front engine cover must always be installed when checking and adjusting the valve
timing, i.e. timing belt tension, as the timing marks for both camshaft pulleys are provided
on its front end.

The mark on the crankshaft timing belt pulley must be in exact alignment with the mark on
the oil pump housing.

Timing belt tension

Item

1

2

3

4

5

6

7

8

Part Number

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