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View Full Version : Testing a starter motor outside of car



Gemini
16-09-2008, 01:43 PM
hey guys, not Magna related but im sure its all the same.

Starter motor in my mums car has shat itself ( 89 skyline ) so bought a second hand one. Installed it and car still wont start. Now the second hand starter is either a dud too, or there is something wrong with the car.


I want to test both starters to see if they are working.

http://img440.imageshack.us/img440/6004/starterfk3.jpg (http://imageshack.us)
http://img440.imageshack.us/img440/starterfk3.jpg/1/w415.png (http://g.imageshack.us/img440/starterfk3.jpg/1/)

Now, to test this thing, I would connect C to the + terminal and - to B and then just connect a wire to A and strike it against the + terminal ?

I used a multimeter and both the B's are grounded to the body of the starter so obviously A is the power on, correct ?

crackajnr
16-09-2008, 01:52 PM
when i test i just use jumper leads.neg earthed to the body of the starter where it bolts to the gearbox is fine and short across A and C. IT should throw out the gear and turn.

Gemini
16-09-2008, 01:56 PM
OK thanks for that. Better safe then sorry.

EDIT:

Man wtf i feel really noobish now :redface: I did what you said, and it didnt start so I went to the wreckers and told him it wont work. He tested it out on his battery but shorted C and B and struck the neg on the body of the starter.

Now im confused. If B and the body are both ground, how does it not burn up ? :confused:

Is it possible that the motor is drawing more current than the pos and neg shorting out ? I might read up on how starters work lol.

Oh yeah re installed it and now it all works.