Starter - Reduction Gear Honda Prelude II

DESCRIPTION

Starter is a 12-volt, 4-brush, solenoid-actuated, gear reduction type motor, equipped with an overrunning clutch. The brush holder assembly retains brushes and springs in the starter housing.

STARTER APPLICATION

No Load Test

1. Connect ammeter in series with starter motor and 12-volt battery. (Scheme 1) Connect voltmeter in parallel with battery and observe readings.
2. Starter should spin smoothly at 3000 RPM or more with current draw below 90 amps (180 amps on diesel engines) at 11.5 volts.

Ammeter and Voltmeter Hook-Up for No Load Test Subaru starter is illustrated. Scheme 1

Cranking Test

1. Connect a voltmeter and ammeter. (Scheme 2) Disconnect ignition coil secondary wire from distributor and ground it. Turn ignition switch to "START" position.
2. Check cranking voltage and current draw. Voltage should be no less than 9.6 volts for Accord and Prelude.
3. Current draw should be below 350 amps for Accord and Prelude. Cranking speed should be about 400 RPM.

Meter Hookup for Honda Cranking Test Be sure voltmeter and ammeter connections are correct. Scheme 2

DISASSEMBLY

1. Disconnect wire(s) to solenoid switch. Remove bolts and remove field frame with armature from solenoid switch. Remove "O" ring and felt seal.
2. Remove starter gear housing screws from solenoid switch. Pull out clutch assembly and gears. Remove ball from clutch shaft hole or from magnetic switch. Remove brushes from brush holder. Pull armature out of field frame.
3. Clean parts with air pressure. DO NOT clean starter and/or components in solvent. Check all parts for wear or damage.

Brushes & Springs

1. Check brush length. If less than specification, replace brushes. See «BRUSH LENGTH SPECIFICATIONS»(/honda/prelude/ii-1983-1987/remont/starter/#starter-reduction-gear) table.
2. Check condition of brush holders, springs, spring clip and insulation between positive and negative holders and repair or replace as needed.

BRUSH LENGTH SPECIFICATIONS

Commutator

1. Inspect commutator for roughness. If surface is pitted, stepped or grooved, it should be lightly sanded with No. 400 sandpaper. Check commutator for out-of-round.
2. If out-of-round is more than .002" (.05 mm), turn the commutator on a lathe until out-of-round is within specification.
3. Wear or cutting limit of commutator is 1.08" (27.5 mm) on Mitsuba starters, or 1.14" (29 mm) for all others.
4. If worn less than .008" (.20 mm), insulating mica should be undercut to a depth of approximately .015-.031" (.40-.80 mm) on all models.

Armature Coil

1. Check commutator and armature coil core for continuity. If continuity exists, replace armature. Check armature with a growler for shorts. Replace if shorted.
2. Check for continuity between segments on commutator. If no continuity exists, replace armature.

Field Coil

Check field coil for open circuits. There should be continuity between lead wire and field coil brush lead. If not, replace field coil. Check for continuity between field coils and end frame. If continuity exists, replace field coil.

Solenoid Pull-In Coil Test

Connect 2 battery negative leads to main terminal and ground. Connect a 12-volt battery positive lead to solenoid "ST" terminal. (Scheme 3) Plunger should extend firmly. If not, replace solenoid.

Solenoid Pull-In Coil Test Connect battery positive to "ST" terminal. Scheme 3

Solenoid Hold-In Coil Test

After pull-in testing, disconnect battery negative lead from main terminal. Plunger should remain extended. If not, replace solenoid. (Scheme 3)

REASSEMBLY

To reassemble, reverse disassembly procedure and note the following: Coat all sliding or moving surfaces of shaft splines, bushings and solenoid with multi-purpose grease. Apply molybdenum disulfide grease to clutch assembly cavity to retain steel ball.

View of Nippondenso Reduction Gear Starter Mitsuba reduction gear starter is similar. Scheme 4

See also:
• BRUSH LENGTH SPECIFICATIONS