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A451-4102
STARTER LOCK TORQUE TESTER

Measure the starters actual torque
Rate all your starters in foot/pounds to determine the real operational strength
Measure the torque from an outboard motor starter to a 50MT starter Analog Indicator
NEW LARGER ANALOG INDICATOR
A451-4102 New Style
A451-4102 Meter Only
A451-4102
A451-4102wVise
Operation:
1    Position starter in your vice allowing the clamping device access to the starter drive.
2    Tighten clamping device leaving approx. 1/8” slack on the clamp  to drive
3    Connect power supply battery or test bench to the starter
4    Put power to the starter, (this test stalls the starter and only takes 1 to 2 seconds to perform). 
    Observe the volts, amps and torque on  the tester
5    A low reading will indicate a weak or bad armature or incorrect field coils


Remember:
•    Any starter that the tester will mount into and will be able to be positioned so the pressure point on the bench top, can be tested
•    Locks the drive when testing
•    Rotate the drive in the Free Spin Direction after the Lock Test
•    Some starters, while being tested, will draw in excess of 500 Amps.  Make sure your test bench is capable of up to 1000 Amp draw.

Sample Readings:
The locked up starter will draw as much as 1000 amps.  Make sure your test bench amp meter will handle this much current or a permanent failure of the meter will occur.  It is recommended that you keep a log of the Voltage & Torque readings during the stall test for future reference. 

The following tests were performed using a Crumbliss 2487 Power Supply, but voltage were not supplied.  Keep in mind the same type of starter can have different readings based on field coils.  Save your readings. 
These reference readings were supplied by A & J Transport.

Manufacturer
Type
Torque
Voltage
Autolite
MDM6005
26

Autolite
MDU7102
24

Bosch
0 001 369 005
28

Bosch
0 001 362 034
30

Delco
Early 12 Volt
35

Delco
10MT LT
22

Delco
10MT HT
30

Delco
20,25,27MT
20 to 30

Delco
35MT, 12 Volt
35

Delco
35MT, 24 Volt
50

Delco
37MT
30

Delco
40MT
30 to 48

Delco
42MT
35 to 38

Hitachi
S12-41, 2.5KW
42

Lucas
M50
30

Lucas
M127
30

Mitsubishi
M2T54272
50

Nikko
0-23000-1360, 12V
44

Prestolite
MDU
24

Prestolite
MBG
20

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Testing Index On-Line Catalog
VENSEL ENTERPRISES
1-800-662-6099
Catalog - Page 60