Mazda 5. Manual - part 6

01–10–10

MECHANICAL 

Drive Plate (ATX), Flywheel (MTX) Disassembly Note

1. Hold the crankshaft using the SST.
2. Remove the bolts in several passes.

End Of Sie

CYLINDER BLOCK (II) DISASSEMBLY

B3E011002000219

Note

• The internal parts of the cylinder block will not be available for the “TRIBUTE (L.H.D.) Face-lifted model”

(Refer to TRIBUTE Workshop Manual for identifying Face-lifted model.)

1. Disassemble in the order indicated in the table.

.

13

End plate (MTX)

14

Rear oil seal

1

2

3

4

5

6

49 E011 1A0

B3E0110E051

9

9

8

7

5

4

3

1

2

10

6

13

11

12

L3,L3( with variable valve timing mechanism) 

L3,L3 (with variable valve 
timing mechanism) 

D6E110ZE1007

1

Balancer unit (L3, L3 (with variable valve timing 
mechanism))

2

Connecting rod cap
(See 01–10–11 Connecting Rod Cap Disassembly 
Note.)

MECHANICAL 

01–10–11

01

Connecting Rod Cap Disassembly Note

1. Before removing the connecting rod cap, inspect the connecting rod side clearance. (See 01–10–21 

CONNECTING ROD INSPECTION.)

2. Remove the connecting rod bolt from the connecting rod cap by tapping the bolt with a plastic hammer.

Note

• Determine the position of each removed connecting rod cap.

Main Bearing Cap Disassembly Note

1. Before removing the main bearing cap, inspect the crankshaft end play. (See 01–10–19 CRANKSHAFT 

INSPECTION.)

2. Loosen the main bearing cap bolts in two or three 

steps in the order shown in the figure.

End Of Sie

CYLINDER HEAD INSPECTION

B3E011010100201

1. Perform color contrast penetrate examination on the cylinder head surface. 

• Replace the cylinder head if necessary.

2. Inspect for the following and repair or replace if necessary.

(1) Sunken valve seats
(2) Excessive camshaft oil clearance and end play

3. Measure the cylinder head for distortion in six directions as shown in the figure.

• If it exceeds the maximum specification, replace the cylinder head.

Maximum distortion:

 0.10 mm {0.004 in}

4. Measure the manifold contact surface distortion 

as shown in the figure.

• If it exceeds the maximum specification, grind 

the surface or replace the cylinder head.

3

Lower connecting rod bearing

4

Upper connecting rod bearing

5

Connecting rod, Piston component

6

Piston  ring

7

Main bearing cap
(See 01–10–11 Main Bearing Cap Disassembly 
Note.)

8

Lower main bearing, thrust bearing

9

Crankshaft

10

Upper main bearing, thrust bearing

11

Oil jet valve

12

Cylinder block

13

Adjustment shim

9

8

7

5

4

3

1

2

10

6

B3E0110E067

B3E0110E008

01–10–12

MECHANICAL 

Maximum distortion:

0.10 mm {0.004 in}

Maximum grinding:

0.15 mm {0.006 in}

End Of Sie

VALVE, VALVE GUIDE INSPECTION

B3E011012111201

1. Measure the valve head margin thickness of each valve. 

• If it is less than the specification, replace the valve.

Margin thickness

IN: 1.62 mm {0.0637 in}
EX: 1.82 mm {0.0716 in}

2. Measure the length of each valve. Replace the 

valve if necessary.

• If it is less than the specification, replace the 

valve.

Standard length L

IN: 102.99—103.79 mm {4.055—4.086 in}
EX: 104.25—105.05 mm {4.105—4.135 in}

Minimum length L

IN: 102.99 mm {4.055 in}
EX: 104.25 mm {4.105 in}

3. Measure the stem diameter of each valve in X 

and Y directions at the three points (A, B, and C) 
as indicated in the figure. 

• If it exceeds the specification, replace the 

valve.

Standard diameter

IN: 5.470—5.485 mm {0.2154—0.2159 in}
EX: 5.465—5.480 mm {0.2152—0.2157 in}

Minimum diameter

IN: 5.470 mm {0.2154 in}
EX: 5.465 mm {0.2152 in}

4. Measure the inner diameter of each valve guide in 

X and Y directions at the three points (A, B, and 
C) as indicated in the figure. 

• If not as specified, replace the valve guide.

IN

EX

B3E0110E132

IN : 31.0 mm {1.22 in}

EX : 26.3 mm {1.03 in}

MARGIN THICKNESS

L8

IN : 33.5 mm {1.31 in}

EX : 28.3 mm {1.14 in}

EXCEPT L8

D6E110ZE1008

L

B3E0110E068

X

Y

A

B

C

ADJ2224E024

MECHANICAL 

01–10–13

01

Standard Inner diameter

5.509—5.539 mm {0.2169—0.2180 in}

5. Calculate the valve stem to guide clearance by 

subtracting the outer diameter of the valve stem 
from the inner diameter of the corresponding 
valve guide. 

• If it exceeds the specification, replace the 

valve and/or the valve guide.

Standard clearance:

IN: 0.024—0.069 mm {0.0009—0.0027 in}
EX: 0.029—0.074 mm {0.0012—0.0029 in}

Maximum clearance:

0.10 mm {0.004 in}

6. Measure the protrusion height (dimension A) of 

each valve guide without lower valve spring seat.

• If not within the specified, replace the valve 

guide.

Standard diameter:

12.2—12.8 mm {0.481—0.503 in}

End Of Sie

VALVE GUIDE REPLACEMENT

B3E011012111202

Valve Guide Removal

1. Remove the valve guide from the combustion 

chamber side using the SST.

X

Y

A

B

C

ADJ2224E026

VALVE STEM

VALVE GUIDE

CLEARANCE

ADA2224E027

A

VALVE GUIDE

CYLINDER HEAD

B3E0110E069

VALVE GUIDE

49 B012 015

B3E0110E070