Mazda Protege 5. Manual — part 120

MECHANICAL [ZM]

01–10A–14

.

Camshaft Pulley Removal Note

1. Temporarily install the No.3 engine mount.
2. Remove the SST (engine support).

Y3U110WA0

1

Camshaft pulley
(See 01–10A–14 Camshaft Pulley Removal Note)
(See 01–10A–17 Camshaft Pulley Installation Note)

2

Camshaft
(See 01–10A–15 Camshaft Removal Note)
(See 01–10A–16 Camshaft Installation Note)

3

Cylinder head
(See 01–10A–15 Cylinder Head Removal Note)
(See 01–10A–15 Cylinder Head Installation Note)

4

Cylinder head gasket

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MECHANICAL [ZM]

01–10A–15

01–10A

3. Hold the camshaft using a wrench on the cast

hexagon as shown.

Camshaft Removal Note

1. Loosen the camshaft cap bolts a few turns in the

order shown.

2. Remove the camshaft cap.

Cylinder Head Removal Note

1. Loosen the cylinder head bolts a few turns in the

order shown.

Cylinder Head Installation Note

1. Measure the length of each bolt.

•

Replace any that exceed the maximum
length.

Standard length

99.2—99.8 mm {3.91—3.92 in}

Maximum length

100.5 mm {3.956 in}

X3U110WB0

X3U110WB1

X3U110WB2

X3U110WB3

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MECHANICAL [ZM]

01–10A–16

2. Tighten the cylinder head bolts a few turns in the

order shown.

Tightening torque

17.2—22.0 N·m {1.75—2.25 kgf·m, 12.7—16.2

ft·lbf}

3. Put a paint mark on each bolt head.
4. Using the marks as a reference, tighten the bolts

by turning each 85

°°°°

—95

°°°°

in the sequence shown.

5. Further tighten each bolt by turning another 85

°°°°

—

95

°°°°

in the sequence shown.

Camshaft Installation Note

Caution

••••

Because there is little camshaft thrust clearance, the camshaft must be held horizontally while it is
installed. Otherwise, excessive force will be applied to the thrust area, causing a burr on the thrust
receiving area of the cylinder head journal. To avoid this, the following procedure must be
observed.

1. Assemble camshaft onto the cylinder head, facing

the cam noses at No.1 and No.3 cylinders as
shown.

Note

•

Keep the camshaft sliding surface free of
sealant to prevent engine damage.

2. Apply silicone sealant to the areas shown.

Thickness

1.0 mm {0.04 in}

3. Apply engine oil to the camshaft and the cylinder

head journals.

4. Install the camshaft caps to the positions from

which they were removed.

X3U110WB4

X3U110WB5

X3U110WB6

X3U110WB7

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MECHANICAL [ZM]

01–10A–17

01–10A

5. Hand tighten the camshaft cap bolts marked 5, 7,

2, and 4.

6. Tighten the camshaft cap bolts a few turns in the

order shown.

7. Verify that the camshaft settles horizontally when

2 bearing cap bolts at No.3 journal are tightened.

8. Apply clean engine oil to the camshaft oil seal.
9. Push the oil seal slightly in by hand.

10. Tap the oil seals in evenly using the SST and a

hammer.

Camshaft Pulley Installation Note

1. Install the camshaft pulleys with the “I” mark

(intake side) or “E” mark (exhaust side) straight
up.

2. Hold the camshaft using a wrench on the cast

hexagon as shown.

X3U110WB8

Y3U110WA1

X3U110WBA

X3U110WBB

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