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Mazda 6 Service Manual: Timing chain

Mazda 6 Service Manual / Engine / Timing chain

TIMING CHAIN REMOVAL/INSTALLATION

Warning

1. Disconnect the negative battery cable.

2. Remove the spark plugs. (See SPARK PLUG REMOVAL/INSTALLATION.)

3. Remove the tire (RH).

4. Remove the under cover.

5. Loosen the water pump pulley bolt and removal the drive belt. (See DRIVE BELT REPLACEMENT.)

6. Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION.)

7. Drain the engine oil. (See ENGINE OIL REPLACEMENT.)

8. Remove the P/S oil pump with the oil hose still connected and position the P/S oil pump so that it is out of the way. (See POWER STEERING OIL PUMP REMOVAL/INSTALLATION.)

9. Remove the front drive shaft (RH) from the joint shaft. (See JOINT SHAFT REMOVAL/INSTALLATION.)

10. Remove in the order indicated in the table.

11. Install in the reverse order of removal.

12. Start the engine and:

13. Perform a road test.



Crankshaft Pulley Lock Bolt Removal Note

1. Remove the cylinder block lower blind plug.

2. Install the SST

.

3. Turn the crankshaft clockwise the crankshaft is in the No.1 cylinder TDC position.


4. Hold the crankshaft pully by using the SSTs

.


Chain Tensioner Removal Note

1. Using a thin screwdriver, hold the chain tensioner ratchet lock mechanism away from the ratchet stem.

2. Slowly compress the tensioner piston.

3. Hold the tensioner piston using a 1.5 mm {0.059 in}

wire or paper clip.


No.3 Engine Mount Rubber and No.3 Engine Joint Bracket Removal Note

Suspend the engine using the SSTs

.


Oil Pump Sprocket Removal Note

Hold the oil pump sprocket by using the SST

.


Engine Front Cover Removal Note

Remove the oil seal using a screwdriver as shown.


Oil Pump Sprocket Installation Note

Hold the oil pump sprocket by using the SST

.


Timing Chain Installation Note

Install the SST

to the camshaft as shown.

European countries


Except European countries

2. Install the timing chain.


3. Remove the retaining wire or paper clip from the auto tensioner to apply tension to the timing chain.

Engine Front Cover Installation Note

1. Apply silicone sealant to the engine front cover as shown.

Caution

Thickness
A: 2.0-3.0 mm {0.079-0.118 in} B: 1.5-2.5 mm {0.059-0.098 in}


2. Install the cylinder head cover bolts in the order as shown.



Front Oil Seal Installation Note

1. Apply clean engine oil to the oil seal.

2. Push the oil seal slightly in by hand.

3. Compress the oil seal using the SST

and a hammer.



No.3 Engine Mount Rubber and No.3 Engine Joint Bracket Installation Note

1. Tighten the stud bolt of the No.3 engine mount bracket.

Tightening torque: 7.0-13 N·m {71.4-132.5 kgf·cm, 62.0-115.0 in·lbf}


2. Install the No.3 engine mount rubber hand-tighten.

3. Tighten the No.3 engine joint bracket is attached and bolts, nuts in the order shown.


Crankshaft Pulley Lock Bolt Installation Note

1. Install the SST

to the camshaft as shown.

European countries


Except European countries


2. Install the M6 x 1.0 bolt

in by hand.


3. Turn the crankshaft clockwise the crankshaft is in the No.1 cylinder TDC position.

4. Hold the crankshaft pully by using the SST

.


5. Tighten the crankshaft pulley lock bolt using the following two steps.

(1) Tighten to 96-104 N·m {9.8-10.6 kgf·m, 70.9-76.7 ft·lbf}

(2) Tighten 87°-93°

6. Remove the M6 x 1.0 bolt.

7. Remove the SST

from the camshaft.

8. Remove the SST

from the cylinder block lower blind plug.

9. Rotate the crankshaft clockwise two turns until the TDC position.

10. Install the cylinder block lower blind plug.

Tightening torque: 18-22 N·m {1.9-2.2 kgf·m, 13.3-16.2 ft·lbf}


Cylinder Head Cover Installation Note

1. Apply silicone sealant to the mating faces as shown.

Caution

Dot diameter:
4.0-6.0 mm {0.16-0.23 in}


2. Install the cylinder head cover with a new gasket.

3. Tighten the bolts in the order shown.

Tightening torque: 8.0-11.5 N·m {81.6-122.3 kgf·cm, 70.9-106.2 in·lbf}


Compression pressure
COMPRESSION INSPECTION Warning Hot engines and oil can cause severe burns. Be careful not to burn yourself during removal/installation of each component. 1. Verify that the battery is fully ...

Cylinder head gasket
CYLINDER HEAD GASKET REPLACEMENT Warning Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills ...

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