I have a starter that doesn't spin. The solenoid kicks out the gear, but it doesn't spin. I am bench testing it, and it still doesn't spin. Here is what I tested, where have I gone wrong?1. Checked resistance of the commutator to armature shaft. It is open, so that is good.2. Checked resistance between segments of the commutator. I have continuity, so that is good.3. I checked the mica on the commutator and they are clean and there is plenty of gap. So that is good.4. I checked continuity of the brushes. The insulated ones are open to the starter case. So that is good. 5. The starter does physically spin my hand, I have no binding or bearing issues.What am I missing?
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Results 1 to 7 of 7
Thread: Starter Troubleshooting
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02-23-2012, 08:35 AM #1
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Starter Troubleshooting
Crew Chief "Tip of the day":
Most handling problems can be solved by adjusting the screw-ball. It can be difficult to fine tune at times. Explaining yourself loudly and striking it on top of the helmet with a dead blow hammer usually works well.
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02-23-2012, 08:36 AM #2
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This forum pisses me off. Why does it lump everything into one paragraph?
Crew Chief "Tip of the day":
Most handling problems can be solved by adjusting the screw-ball. It can be difficult to fine tune at times. Explaining yourself loudly and striking it on top of the helmet with a dead blow hammer usually works well.
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02-23-2012, 09:17 AM #3
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It seams you are looking for a short when you should be looking for an open circuit.Some where current is not getting through.Did you take the solenoid apart,most have a copper disc that makes contact energizing the starter motor.These can become burnt or corroded and not make a good contact.Take a look at the brushes,check the leads make sure they are still intact.Lightly sand the brushes they can become glazed and not make good contact.
Good luck!
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02-23-2012, 11:13 AM #4
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Because 4m is an ill-engineered piece of crap.
Originally Posted by joedoozer
Old enuf to know better, still too young to givadamm.
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02-23-2012, 11:15 AM #5
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The starter is only a year old and looks decent. The solenoid is good, and works perfect. When I put power right on the cable on the motor side it still doesn't spin. I think it might be a brush issue. At this point what else could it be.
Last edited by joedoozer; 02-23-2012 at 12:29 PM.
Crew Chief "Tip of the day":
Most handling problems can be solved by adjusting the screw-ball. It can be difficult to fine tune at times. Explaining yourself loudly and striking it on top of the helmet with a dead blow hammer usually works well.
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02-23-2012, 01:21 PM #6
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If the brushes check out ok ,about the only thing left would be an open winding in the armature.You need a special piece of test equiptment to check the armature,find a local electric motor shop they should be able to check it for a couple bucks.
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02-23-2012, 01:29 PM #7
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Yeah a growl test. I live in the middle of no where so finding something like that isn't even worth trying.
Crew Chief "Tip of the day":
Most handling problems can be solved by adjusting the screw-ball. It can be difficult to fine tune at times. Explaining yourself loudly and striking it on top of the helmet with a dead blow hammer usually works well.
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