Mazda Protege 5. Manual — part 124

MECHANICAL [FS]

01–10B–3

01–10B

DRIVE BELT INSPECTION [FS]

A3U011015800W01

Inspect the drive belt tension or deflection, as necessary.

Drive Belt Deflection Inspection

Note

•

Inspect the drive belt deflection when the engine is cold, or at least 30 min after the engine has stopped.

1. Apply moderate pressure 98 N {10 kgf, 22 lbf}

midway between the specified pulleys.

•

If the deflection is not within the specification,
adjust it. (See 01–10B–4 DRIVE BELT
ADJUSTMENT [FS].)

Deflection

mm {in}

Drive Belt Tension Inspection

Note

•

Belt tension can be inspected in place of belt deflection. Inspect the drive belt tension when the engine is
cold, or at least 30 min after the engine has been stopped.

1. Using the SST, inspect the belt tension between

any two pulleys.

•

If the tension is not within the specification,
adjust it. (See 01–10B–4 DRIVE BELT
ADJUSTMENT [FS].)

Tension

N {kgf, lbf}

End Of Sie

Drive belt

Limit

Generator

10.0 {0.39}

P/S, P/S+A/C

11.0 {0.43}

X3U110WF0

X3U110WF1

Drive belt

Limit

Generator

390 {40, 88}

P/S, P/S+A/C

390 {40, 88}

X3U110WF2

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MECHANICAL [FS]

01–10B–4

DRIVE BELT ADJUSTMENT [FS]

A3U011015800W02

1. Loosen mounting bolt A and B.

2. Adjust the belt deflection or tension by turning the

adjusting bolt C.

Caution

••••

If the belt is replaced with a new one or
the belt has been on a running engine for
less than 5 minutes, adjust deflection or
tension to “New” specification.

••••

If the belt has been on a running engine
for more than 5 minutes, adjust
deflection or tension to “Used”
specification.

Deflection

mm {in}

Drive belt

New

Used

Generator

6.5—7.5 {0.26—0.29} 7.0—9.0 {0.28—0.35}

P/S, P/S+A/
C

7.5—9.0 {0.30—0.35} 8.0—9.5 {0.32—0.37}

X3U110WF3

X3U110WF4

X3U110WF0

X3U110WF1

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MECHANICAL [FS]

01–10B–5

01–10B

Tension

N {kgf, lbf}

3. Tighten mounting bolt A and B.
4. Inspect the belt deflection or tension.

•

If not as specified, repeat from Step 1.

End Of Sie

VALVE CLEARANCE INSPECTION [FS]

A3U011012010W01

1. Remove the cylinder head cover. (See 01–10B–10 Cylinder Head Cover Removal Note.)
2. Verify that the engine is in cold condition.
3. Measure the valve clearance.

(1) Turn the crankshaft clockwise so that the

No.1 piston is at TDC of the compression
stroke.

(2) Measure the valve clearance at A in the

figure.

•

If the valve clearance exceeds the
standard, replace the adjustment shim.
(See 01–10B–6 VALVE CLEARANCE
ADJUSTMENT [FS].)

Standard [Engine cold]

IN: 0.225—0.295 mm {0.0089—0.0116 in}

(0.26

±±±±

0.035 mm {0.010

±±±±

0.001 in})

EX: 0.225—0.295 mm {0.0089—0.0116 in}

(0.26

±±±±

0.035 mm {0.010

±±±±

0.001 in})

(3) Turn the crankshaft 360

°°°°

clockwise so that

the No.4 piston is at TDC of the compression
stroke.

(4) Measure the valve clearance at B in the figure.

•

If the valve clearance exceeds the standard, replace the adjustment shim. (See 01–10B–6 VALVE
CLEARANCE ADJUSTMENT [FS].)

Standard [Engine cold]

IN: 0.225—0.295 mm {0.0089—0.0116 in} (0.26

±±±±

0.035 mm {0.010

±±±±

0.001 in})

EX: 0.225—0.295 mm {0.0089—0.0116 in} (0.26

±±±±

0.035 mm {0.010

±±±±

0.001 in})

4. Install the cylinder head cover. (See 01–10B–13 Cylinder Head Cover Installation Note.)

End Of Sie

Drive belt

New

Used

Generator

690—830 {70—85,

160—180}

500—680 {50—70,

110—150}

P/S, P/S+A/
C

590—780 {60—80,

140—170}

500—680 {50—70,

110—150}

X3U110WF2

Y3U110WAC

X3U110WF6

X3U110WF7

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MECHANICAL [FS]

01–10B–6

VALVE CLEARANCE ADJUSTMENT [FS]

A3U011012010W02

Perform this same procedure for all camshafts requiring valve clearance adjustment.

1. Turn the crankshaft clockwise so that the cams on the camshaft requiring valve clearance adjustment are

positioned straight up.

2. Remove the camshaft cap bolts as necessary.

Note

•

Remove only one pair of cap bolts at a time.

•

Reinstall the cap bolts before removing the
next pair.
— A: For EX side No.1, 2, 3 cylinder

adjustment shim removal.

— B: For IN side No.1, 2, 3 cylinder

adjustment shim removal.

— C: For EX side No.2, 3, 4 cylinder

adjustment shim removal.

— D: For IN side No.2, 3, 4 cylinder

adjustment shim removal.

Note

•

For EX side No.2, 3 cylinder adjustment shim removal, remove bolts either A or C.

•

For IN side No.2, 3 cylinder adjustment shim removal, remove bolts either B or D.

3. Install the SSTs on the camshaft using the

camshaft cap bolt holes.

Tightening torque

11.3—14.2 N·m {115—145 kgf·cm, 100—125

in·lbf}

4. Align the marks on the SSTs (shaft and shaft

clamp).

5. Tighten bolts A to secure the SST (shaft).

X3U110WF8

X3U110WF9

X3U110WFA

X3U110WFB

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