Mazda CX 7. Manual — part 137

STARTING SYSTEM [L3 WITH TC]

01-19–3

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2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Revised 12/2006 (Ref. No. R215/06)

Heater Pipe Removal Note

1. Remove the heater pipe with the water hoses still connected. Position the heater pipe so that it is out of the way.

Starter Removal Note

1. Remove the starter from above the engine compartment.

Starter Installation Note

Note

• If there is peeling on or damage to the

insulator, attach a new insulator using the
following procedure:

1. Peel off the insulator from the starter completely

using a scraper.

2. Degrease the insulator attachment area.

3. Attach a new insulator to the starter.

End Of Sie

PEELING

INSULATOR

STARTER

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INSULATOR
ATTACHMENT AREA

STARTER

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INSULATOR

STARTER

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STARTING SYSTEM [L3 WITH TC]

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2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

STARTER INSPECTION[L3 WITH TC]

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On-vehicle Inspection

1. Verify that the battery is fully charged.
2. The starter is normal if it rotates smoothly and without any noise when the engine is cranked.

• If the starter does not operate, inspect the following:

— Remove the starter, and inspect the starter unit.

— Inspect the related wiring harnesses, the ignition switch, and the transaxle range switch.

No-load Test

1. Verify that the battery is fully charged.
2. Connect the starter, battery, and a tester as

shown in the figure.

3. Operate the starter and verify that it rotates

smoothly.

• If the starter does not rotate smoothly, inspect

the starter unit.

4. Measure the voltage and current while the starter

is operating.

• If not within the specification, replace the

starter.

Starter no-load test voltage

11 V

Starter no-load test current

90 A or less

Magnetic Switch Operation Inspection
Pull-out test

Note

• Depending on the battery charge condition, the starter motor pinion may rotate while in an extended state.

This is due to current flowing to the starter motor through the pull-in coil to turn the starter motor, and does
not indicate an abnormality.

1. Verify that the starter motor pinion is extended

while battery positive voltage is connected to
terminal S and the starter body is grounded.

• If the starter motor pinion is not extended,

repair or replace the starter.

B

V

A

M

TESTER

TESTER

STARTER

S TERMINAL

IG SW

BATTERY

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TERMINAL S

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STARTING SYSTEM [L3 WITH TC]

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2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

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STARTING SYSTEM [L3 WITH TC]

Return test

1. Disconnect the motor wire from terminal M.
2. Connect battery positive voltage to terminal M

and ground the starter body.

3. Pull out the drive pinion with a screwdriver. Verify

that it returns to its original position when
released.

• If it does not return, repair or replace the

starter.

Pinion Gap Inspection

1. Pull out the drive pinion with the battery positive

voltage connected to terminal S and the starter
body grounded.

Caution

• Applying power for more than 10 s can

damage the starter. Do not apply power
for more than 10 s.

2. Measure the pinion gap while the drive pinion is

extended.

• If not as specified, adjust with an adjustment

washer (between drive housing front cover
and magnetic switch).

Starter pinion gap

0.5— 2.0 mm {0.02— 0.07 in}

Starter Inner Parts Inspection
Armature

1. Verify that there is no continuity between the

commutator and the core at each segment using
a tester.

• If there is continuity, replace the armature.

End Of Sie

TERMINAL M

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TERMINAL S

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PINION GAP

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STARTING SYSTEM [L3 WITH TC]

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2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

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