Ford Galaxy / Ford S-MAX. Manual — part 162

Oil Leaks - Engine

NOTE: Before renewing gaskets or oil seals, make sure that the cause of the fault is
clearly established.

If the oil leak cannot be identified clearly by a visual inspection, carry out an UV test:

Ultraviolet (UV) Testing

1. 1. Clean the engine and transmission with a suitable cleaning fluid.

2. 2. Pour the UV-test fluid in accordance with the quantity specified by the

manufacturer through the oil filler neck into the engine and install the oil filler cap.

WARNING: Vehicles with manual transaxle, shift the transaxle into Neutral. Failure to

observe this instruction can lead to injuries.

3. 3. Start the engine and let it run for about five minutes.

4. 4. Stop the engine.

NOTE: If no leak is found, perform a road test. Drive the vehicle under different loads and
then re-check the engine for leaks.

5. 5. Check the engine for oil leaks using a suitable UV lamp.

6. 6. Rectify any leaks found and check the engine for oil leaks.

Measure the compression pressure

Ventilspiel einstellen (General
Procedures),
Steuerkette (Removal and
Installation).

Noisy running or
valve train noise

Valve clearance too large

due to faulty valve tappets
or worn valve train
components.

*

ADJUST valve clearance.

REFER to: Ventilspiel einstellen (303-01
Motor - 2.3L Duratec-HE (MI4), General
Procedures).

*

Timing chain damaged.

*

INSTALL a new timing chain.

REFER to: Steuerkette (303-01 Motor -
2.3L Duratec-HE (MI4), Removal and
Installation).

*

Timing chain incorrectly

tensioned

*

CHECK the timing chain tension. INSTALL

a new timing chain if required.
REFER to: Steuerkette (303-01 Motor -
2.3L Duratec-HE (MI4), Removal and
Installation).

*

Noisy running or
engine noise

Engine components
Pistons
Piston rings
Connecting rod big end,

main bearing or thrust
bearing journals

Connecting rods bent or

damaged.

*
-
-
-

-

CHECK the engine components for wear

or damage. Make sure all components are
within specification. INSTALL a new
cylinder block if necessary.
REFER to: Spezifikationen (303-01 Motor
- 2.3L Duratec-HE (MI4), Specifications).

*

1. 1. Remove the central junction box cover.

2. 2. Detach the central junction box (CJB).

3. 3. Open the CJB and remove fuse 23 - fuel pump relay.

NOTE: The engine will start, run for a few seconds and then stop.

4. 4. Start the engine.

5. 5. Detach the engine cover.

6. 6. Disconnect the ignition coil-on-plug electrical connectors.

7. 7. Remove the ignition coil-on-plug

8. 8. Remove the spark plugs using the special tool.

NOTE: Operate the starter motor with wide open throttle until the reading on the
compression tester stops rising.

9. 9. Perform the measurement on each cylinder according to the instructions provided

by the manufacturer of the measuring device.

Use a compression tester

with a

suitable adapter.

10. 10. Install the spark plugs using the special tool.

11. 11. Install the ignition coil-on-plug.

12. 12. Connect the ignition coil-on-plug electrical connectors.

13. 13. Install the engine cover.