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Discussion Topic:
slow starter turnover
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flatfoot |
12-19-2022 @ 8:58 AM
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Member
Posts: 267
Joined: Mar 2011
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I have a '36 Fordor touring sedan. My starter is slow to turn over and stops turning then goes and starts the car??? I have an original 6 volt system with a new 6 volt alternator. The battery is new and fully charged. The wires to the stater are also new and are 6 volt style. All wiring has been replaced with new original wire loom throughout the car. The starter switch has also been replaced with new. The starter is also 6 volt. It has a '37 motor flathead, only about 1500 miles. '39 transmission just overhauled. Anybody got any ideas?
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mzahorik |
12-19-2022 @ 10:19 AM
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Member
Posts: 209
Joined: Nov 2009
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Well, since you mention that the starter goes and stops. I'd check the starter for a bent shaft. A bent shaft will bind on the flywheel and then become free causing the various speeds. You did mention checking the ground paths. Mike
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TomO |
12-19-2022 @ 10:27 AM
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Senior
Posts: 7256
Joined: Oct 2009
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Check out this topic for suggestions: https://www.earlyfordv8.org/forum/viewmessages.cfm?Forum=16&Topic=11212&keywords=voltage%20drop
Tom
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37RAGTOPMAN |
12-22-2022 @ 8:56 AM
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Senior
Posts: 1962
Joined: Oct 2009
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hi flatfoot take the starter out,and bench test it,use care, when doing this put your foot on it if on the floor, or a vise on the bench take the tin cover off and inspect the commutator and brushes, for wear and dirty if you need to get it rebuilt, I recommend CERTIFIED AUTO ELECRTIC in OHIO 6vto12v@gmail.com 440 439 1100 there is a lot more to the rebuild then you think, they have a high torque armature I had one done 3 years ago, works just fine,,,, hope this helps 37Ragtopman''' Maine
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CaliforniaBorn36 |
12-24-2022 @ 9:16 AM
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Member
Posts: 57
Joined: Jan 2013
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You mention a lot of new items. Are the battery cables new and of sufficient size. If they are to small, and or corroded, (can get corrosion hidden within the cables), this can cause a lot of resistance. When I replaced the ground strap on my 36, it was like night and day.
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carcrazy |
12-24-2022 @ 11:50 AM
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Senior
Posts: 1667
Joined: Oct 2009
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Are all of the ground paths good? My '53 had an additional ground wire which ran from the + post of the battery to one of the starter mounting bolts. The starter always spun at a fast pace and started the car.
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brad.arcova@gmail.com |
01-13-2023 @ 1:38 PM
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Member
Posts: 2
Joined: Nov 2016
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Had this problem too. Did you know there are two ground straps? I didn't. There's one from the battery to the firewall and another from the firewall to the engine. The firewall/engine ground strap had been left off by the previous owner. Bought and installed a new one. Starts like a new car.
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supereal |
01-18-2023 @ 9:26 AM
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Senior
Posts: 6819
Joined: Oct 2009
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Put a voltmeter between the terminal on the starter and ground and observe the reading when the starter button is pushed. A low reading can indicate a dying battery, poor contact between the cable and the solenoid, or to the starter itself. Moving the input of the meter to the starter side of all connections can pinpoint where the loss is occurring when the starter button is pushed.
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flatfoot |
03-04-2023 @ 11:28 AM
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Member
Posts: 267
Joined: Mar 2011
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I found I needed a better cranking battery(6 volt). In the process as I write this. Thank you to all for your very expert help.
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1931 Flamingo |
03-05-2023 @ 8:39 AM
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Member
Posts: 388
Joined: Nov 2019
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Couple of years ago I got a new starter from a reliable vendor. Armature was out of round. Paul in CT
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