Volvo 850 service & repair manual

STARTER – BOSCH

1995 Volvo 850

1995-96 STARTING & CHARGING SYSTEMS Volvo 850 Starters – Bosch

DESCRIPTION

Starter is a brush-type, series-wound electric motor with an overrunning clutch (drive assembly). Field frame is enclosed by commutator end frame and drive bushing and carries pole shoes and
field coils. A spline armature shaft drive end carries drive assembly.

TROUBLE SHOOTING

NOTE: See TROUBLE SHOOTING – BASIC PROCEDURES article in GENERAL INFORMATION.

BENCH TESTING

STARTER NO-LOAD TEST

With starter on bench, operate starter and check ammeter, voltage and RPM. Readings should be within specification. See STARTER NO-LOAD TEST SPECIFICATIONS table.
STARTER NO-LOAD TEST SPECIFICATIONS
Application Volts Amps. RPM
0 001 108 107 …….. 11.5 ……… 75 …….. 2900
0 001 108 153 …….. 11.5 ……… 75 …….. 2900
0 001 108 166 …….. 12.0 ……… 75 …….. 3000
0 001 108 167 …….. 12.0 ……… 75 …….. 2900
0 001 110 063 …….. 11.2 ……… 95 …….. 2800
0 001 218 173 …….. 12.0 ……… 75 …….. 6100

SOLENOID TEST

Connect negative battery cable to starter solenoid terminal “M”. Connect battery positive lead to solenoid terminal No. 50. See Fig. 2. If plunger does not extend firmly, replace solenoid.

OVERHAUL

NOTE: Use illustration for starter overhaul. See Fig. 1.

Fig. 1: Exploded View Of Bosch Starter

Courtesy of Volvo Cars of North America.
Fig. 2: Testing Starter Solenoid
Courtesy of Volvo Cars of North America.

STARTER SPECIFICATIONS

BOSCH STARTER SPECIFICATIONS TABLE
Application Specification
Carbon Brush Minimum Length
0 001 108 107 ………………………. .17″ (4.5 mm)
0 001 108 153 ………………………. .17″ (4.5 mm)
0 001 108 166 ……………………… .44″ (11.2 mm)
0 001 108 167 ……………………… .44″ (11.2 mm)
0 001 110 063 ………………………… .23″ (6 mm)
0 001 218 173 ……………………… .64″ (16.5 mm) Commutator Diameter
0 001 108 107 …………………….. 1.22″ (31.2 mm)
0 001 108 153 …………………….. 1.22″ (31.2 mm)
0 001 108 166 …………………….. 1.28″ (32.7 mm)
0 001 108 167 …………………….. 1.28″ (32.7 mm)
0 001 110 063 …………………….. 1.22″ (31.2 mm)
0 001 218 173 …………………….. 1.19″ (30.4 mm) Commutator Runout
0 001 108 107 ……………………. .0004″ (.010 mm)
0 001 108 153 ……………………. .0004″ (.010 mm)
0 001 108 166 ……………………. .0004″ (.010 mm)
0 001 108 167 ……………………. .0004″ (.010 mm)
0 001 110 063 ……………………. .0004″ (.010 mm)
0 001 218 173 ……………………. .0012″ (.030 mm) Core Runout
0 001 218 173 91 62 928 …………….. .003″ (.08 mm) All Others ………………………… .002″ (.05 mm)
End Play
0 001 108 107 ……………… .002-.015″ (.05-.40 mm)
0 001 108 153 ……………… .002-.015″ (.05-.40 mm)
0 001 108 166 ……………… .008-.028″ (.20-.70 mm)
0 001 108 167 ……………… .008-.028″ (.20-.70 mm)
0 001 110 063 ……………… .002-.015″ (.05-.40 mm)
0 001 218 173 ……………… .002-.028″ (.05-.70 mm)

WIRING DIAGRAMS

Fig. 3: Starting System Wiring Diagram (1995-96)

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