Owners manual

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INSTALLATION
These instructions are provided as supplementary information to the factory service manual instructions for starter replacement.
DISCONNECT THE BATTERY.
MOUNT STARTER. Make sure the mounting surface of the bellhousing is smooth, flat and free of paint buildup. Torque the starter
mounting bolts to the engine manufacturer’s specifications, typically 32 ft. lbs.
ATTACH BATTERY CABLE AND SWITCH WIRE. Reconnect the original ignition switch wire to the IGN terminal on the
Mastertorque starter. The switch wire should be capable of handling 50A intermittent
and 10A continuous, typically a 12AWG wire. Reconnect the original battery cable
to the Mastertorque starter. The battery cable must be the proper size for the length
of the cable (see chart). All connections should be clean and tight and terminals
should be soldered if possible. The ground cable is important and the best ground
path is direct to the engine block. With steel frame vehicles the ground path can be
to the frame. This ground cable should be the same size as the starter positive cable. Also, a ground strap should be installed from
the frame to the engine.
CONNECT THE BATTERY.
OPERATE THE STARTER. It should operate quietly. The cables and connectors themselves should be checked for voltage drop with
a voltmeter. To check any wire or cable for voltage drop, connect one side of the voltmeter to one end of the cable and the other side
of the voltmeter to the other end. OPERATE THE CIRCUIT and simultaneously measure the volt drop. It should be 0.5VDC or
less. A high voltage drop indicates a bad connector or an undersized cable. The ground circuit can be checked in the same manner.
Measure input voltage by connecting the positive probe of a voltmeter to the “MOTOR” terminal of the solenoid and connecting the
negative to the starter housing. This should be 9.6V minimum while cranking.
ADDITIONAL NOTES ON INSTALLATION
1. A NOTE ABOUT RING GEARS. It is important for long starter life that the ring gear be round and true. Check the ring gear in at least six places
verifying that the clearance for the starter is the same in all locations. If not remove the ring gear and make sure the mounting surface of the
crankshaft is clean and free of paint buildup or rust. Reinstall the ring gear and properly torque the mounting bolts. If this does not correct the
problem, replace the ring gear.
2. DISCONNECT SWITCHES IN RACE CARS AND OTHER OFF ROAD VEHICLES. The switch used for a battery disconnect is very important. All of the starter
current will go across this switch during cranking which, depending on the starter, can be as high as 700A! After the engine is running, all of the
current from the alternator will be running across this switch. Therefore make sure that the switch that is being used can handle these amounts
of current. Switches are rated in intermittent amps and continuous amps. The intermittent rating should match or exceed the amount the starter
will pull and the continuous rating should match or exceed the amount the alternator can produce. Using a switch that is too small will result in
voltage loss and possible switch failure.
INSTRUCTION SHEET
Gear Reduction Racing Starter
Mastertorque 9613, XS Torque 9513, 9523
DISTANCE
AWG
3’
2 1
0
00
5’ 7’ 10’ +10’
4
9613
[phone]
West Chicago, IL 60185
1833 Downs Drive
INS099 Revised 8/16/10