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Starter motor sudden issue
#1313302 Wed Jun 05 2019 05:51 PM
Joined: May 2006
Posts: 900
T
Shop Shark
12v negative ground conversion. Been working great for years.

Went out to start truck. Turned key. Pushed starter button. Engine started.

Heard strange whirring sound. Shut off key. Starter motor kept whirring away and getting hot.

Disconnected ground from battery. Did not shut off starter motor. Pulled positive battery cable. Starter shut off.

What caused this sudden and new issue? Bad solenoid?? starter grounding somewhere. Electric issues not a strength of mine.

Last edited by tom moore; Wed Jun 05 2019 05:54 PM.
Re: Starter motor sudden issue
tom moore #1313303 Wed Jun 05 2019 06:09 PM
Joined: Apr 2005
Posts: 9,095
Grease Monkey, Moderator General Truck Talk & Greasy Spoon
It would help greatly if you would tell us what your working on.


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne 4dr 230 I-6 one owner (I’m #2)
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Re: Starter motor sudden issue
tom moore #1313309 Wed Jun 05 2019 07:53 PM
Joined: May 2006
Posts: 900
T
Shop Shark
47 gmc.

Re: Starter motor sudden issue
tom moore #1313350 Thu Jun 06 2019 01:47 AM
Joined: Mar 2010
Posts: 9,449
5
Master Gabster
Do you have a stop starter? Is the starter button on the top of the starter (it is a heavy duty switch) still mashed (pushed down for all y'all yankees smile ).
If so, is it due to the linkage from the stomp starter hanging up somehow?
Carl

Last edited by 52Carl; Thu Jun 06 2019 01:49 AM.
Re: Starter motor sudden issue
tom moore #1313412 Thu Jun 06 2019 02:17 PM
Joined: May 2005
Posts: 1,638
B
Shop Shark
If you removed either the positive or negative cable from the battery and the problem persisted, you have bigger problems. No matter if it’s positive or negative grounded.


Six volt guy living in a twelve volt world
Re: Starter motor sudden issue
tom moore #1313415 Thu Jun 06 2019 03:08 PM
Joined: Jan 2013
Posts: 1,663
S
Shop Shark
solenoid not disengaging, check for sticky button on top of the starter

Last edited by sstock; Thu Jun 06 2019 03:09 PM.

1953 Chevrolet 3100
261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
https://www.youtube.com/watch?v=Bli...n05i04t1aokgm4p04jiwgffwhyyih5xbk0h00410
1964 GMC 1000
305 Big Block V6, sm420, the next cab off restoration
Re: Starter motor sudden issue
tom moore #1313419 Thu Jun 06 2019 03:26 PM
Joined: Aug 2014
Posts: 249
S
Shop Shark
Seems I might have similar issue.. how does one fix a "sticky button on top of starter"? Grease all pivot points on the linkage?

Last edited by scottss60; Thu Jun 06 2019 03:35 PM. Reason: another issue
Re: Starter motor sudden issue
tom moore #1313465 Fri Jun 07 2019 02:44 AM
Joined: Mar 2010
Posts: 9,449
5
Master Gabster
My starter runs on quite a long time after it starts and I have let off the stomp starter. It is just coasting without contacting the flywheel any longer. No electricity involved.
I have a six volt started fed by 12 volts.She gets some serious momentum going.

Re: Starter motor sudden issue
tom moore #1313680 Sun Jun 09 2019 12:00 AM
Joined: Jun 2012
Posts: 1,729
S
Shop Shark
The "Car" starter has a solenoid. The "Truck" starter has a mechanical switch. Both can be 6 or 12 volt If the ground cable did not stop the starter, then I am at a loss how the circuit was completed. That is new to me. The solenoid can stick. That would keep the starter running and engaged. Great way to destroy the armature windings if it continues for too long. The stomp starter can fuse the switch. The starter will disengage, and still run. That will also cause the armature to overheat. But it will not throw the windings off. My 6 volt starter will coast for a bit after the engine starts, but that is not a big issue. Yes it is in a 12 volt system. But it is matched to a 6 volt flywheel. That does make a difference. So the question we need to know is this, start button, or foot switch?


Steve H

Moderated by  Rusty Rod 

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