NISSAN NAVARA 2005 Repair Workshop Manual

SC-28
STARTING SYSTEM
Wiring Diagram — START —
EKS00MZN
A/T MODELS
MKWA2946E

STARTING SYSTEM
SC-29
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M/T MODELS
MKWA3623E

SC-30
STARTING SYSTEM
Trouble Diagnoses
EKS00MZO
If any abnormality is found, immediately disconnect battery negative terminal.
SEL761W

STARTING SYSTEM
SC-31
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Removal and InstallationEKS00MZP
REMOVAL
1. Disconnect negative battery cable.
2. Remove engine under covers.
3. Disconnect S terminal and B terminal from starter motor.
4. Remove starter motor mounting bolts (two).
5. Remove starter motor from bottom side the vehicle.
INSTALLATION
Install in the reverse order of removal.
(M8T76071ZE)
1. Starter motor assembly 2. Rear plate 3. Transmission case
MKIB1991E
B terminal nut :
: 7.35 - 9.81 N·m (0.75 - 1.0 kg-m, 65 - 87 in-lb)
S terminal nut :
:3.0-5.0N·m(0.3-0.5kg-m,27-44in-lb)

SC-32
STARTING SYSTEM
Disassembly and Assembly
EKS00PD2
InspectionEKS00MZR
MAGNETIC SWITCH CHECK
lBefore starting to check, disconnect battery ground cable.
lDisconnect “M” terminal of starter motor.
1. Stopper clip 2. Pinion stopper 3. Pinion
4. Spring 5. Gear case 6. Plate
7. Packing 8. Adjusting plate 9. Magnetic switch assembly
10. Snap ring 11. Retainer ring 12. Over running clutch
13. Internal gear 14. Planetary gear 15. Ball
16. Packing 17. Cover 18. Yoke
19. Armature 20. Washer 21. Rear bearing
22. Brush holder assembly 23. Brush spring 24. Brush (-)
25. Rear cover 26. Through bolt
(H): High-temperature grease point
MKIB2003E

STARTING SYSTEM
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1. Continuity test (between “S” terminal and switch body).
lNo continuity... Replace.
2. Continuity test (between “S” terminal and “M” terminal).
lNo continuity... Replace.
PINION/CLUTCH CHECK
1. Inspect pinion teeth.
lReplace pinion if teeth are worn or damaged. (Also check
condition of ring gear teeth.)
2. Inspect reduction gear teeth (If equipped).
lReplace reduction gear if teeth are worn or damaged. (Also
check condition of armature shaft gear teeth.)
3. Check to see if pinion locks in one direction and rotates
smoothly in the opposite direction.
lIf it locks or rotates in both directions, or unusual resistance is
evident.... Replace.
BRUSH CHECK
Brush
Check wear of brush.
lExcessive wear... Replace.
MKIA0011E
MEL139L
Wear limit length : Refer to SDS.SC-37,
"Starter".
SEL014Z

SC-34
STARTING SYSTEM
Brush Spring Check
Check brush spring pressure with brush spring detached from brush.
lNot within the specified values... Replace.
Brush Holder
1. Perform insulation test between brush holder (positive side) and
its base (negative side).
lContinuity exists.... Replace.
2. Check brush to see if it moves smoothly.
lIf brush holder is bent, replace it; if sliding surface is dirty,
clean.
YOKE CHECK
Magnet is secured to yoke by bonding agent. Check magnet to see
that it is secured to yoke and for any cracks. Replace malfunctioning
parts as an assembly.
CAUTION:
Do not clamp yoke in a vice or strike it with a hammer.Spring pressure (with
new brush): Refer to SDS.SC-37,
"Starter".
SEL015Z
SEL016Z
SEL305H

STARTING SYSTEM
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ARMATURE CHECK
1. Continuity test (between two segments side by side).
lNo continuity... Replace.
2. Insulation test (between each commutator bar and shaft).
lContinuity exists.... Replace.
3. Check commutator surface.
lRough... Sand lightly with No. 500 - 600 emery paper.
4. Check diameter of commutator.
lLess than specified value... Replace.
5. Check depth of insulating mold from commutator surface.
SEL019Z
SEL020Z
Commutator minimum
diameter: Refer to SDS.SC-37,
"Starter".
SEL021Z

SC-36
STARTING SYSTEM
lLess than 0.2 mm (0.008 in)... Undercut to 0.5 to 0.8 mm (0.020 to 0.031 in)
AssemblyEKS00MZS
Apply high-temperature grease to lubricate the bearing, gears and frictional surface when assembling the
starter.
Carefully observe the following instructions.
PINION PROTRUSION LENGTH ADJUSTMENT
Movement
Compare movement “ ” in height of pinion when it is pushed out
with magnetic switch energized and when it is pulled out by hand
until it touches stopper.
lNot in the specified value...Adjust by adjusting plate.
SEL022Z
Movement “ ”:RefertoSC-37, "Starter".
MEL140L
MKIB0870E

SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
BatteryEKS00MZT
StarterEKS00MZU
AlternatorEKS00MZV
Applied modelYD25 engine
TypeL3/760L
Capacity V-AH12-75
Ty p eM8T76071ZE
MITSUBISHI
Reduction
Applied modelYD25 engine
System voltage V12
No-loadTerminal voltage V 11.0
Current A Less than 145
Revolution rpm More than 3,400
Minimum diameter of commutator mm (in) 31.4 (1.236)
Minimum length of brush mm (in) 11.0 (0.433)
Brush spring tension N (kg, lb)26.7 - 36.1
(2.72 - 3.68, 6.0 - 8.12)
Clearance between bearing metal and armature shaft mm (in) —
Clearance “ ” between pinion front edge and pinion stopper mm (in)—
Movement “ ” in height of pinion assembly mm (in)0 (0, 0)
TypeA3TJ0781 A3TG2681ZE
MITSUBISHI
Applied modelYD25 engine
LHD models RHD models
Nominal rating V-A 12-150 12-130
Ground polarityNegative
Minimum revolutions under no-load
(When 13.5V is applied) rpmLess than 1,000
Hot output current (When 13.5V is applied) A/rpmMore than 35/1,300
More than 105/2,500
More than 136/5,000More than 33/1,300
More than 105/2,500
More than 122/5,000
Regulated output voltage V 14.1 - 14.7
Minimum length of brush mm (in) More than 5.0 (0.197)
Brush spring pressure N (g, oz.)4.1 - 5.3
(418 - 520, 14.74 - 18.34)4.8 - 6.0
(490 - 610, 17.28 - 21.51)
Slip ring minimum diameter mm (in) More than 22.1 (0.870)
Rotor coil resistance at 20°(68°F)W1.6 - 2.0 1.7 - 2.1