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08-07-2020, 01:48 PM | #1 |
Junior Member
Join Date: Jul 2020
Posts: 11
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Starter motor--question before I reinstall
Working on this old doodlebug and bench tested the starter. Only 12 V available at the time and the RPM seems to be roughly 80. (I kept tests really short due to 12v but long enough to reach the max speed.)
Before I reinstall, does that RPM seem adequate or is it slow? Thinking when I go to 6v and under a bit of load, it might be dropping even lower which seems darned slow to me...but I have no clue what these normally run. Hand turning is not hard but feels like a bit of drag--like old gunked bearings where the thick grease drags. I don't want to "dig in" unless you folks think it really needs attention. And..if I do have to dig in a bit, am I opening a can of worms? Bendix stuff seems to be working extremely well and is completely free moving. Trying to keep costs down as I've over-done it already. Dang, these things can nickel and dime you if you let em. Thanks for all the help. |
08-07-2020, 02:35 PM | #2 |
Senior Member
Join Date: May 2010
Location: Young Harris, GA
Posts: 1,815
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Re: Starter motor--question before I reinstall
Sounds slow to me. See this reference:
http://www.diabloas.com/daspdfgrafix...er-Rebuild.pdf Not that hard to rebuild them.
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Jim Cannon Former MAFCA Technical Director "Have a Model A day!" |
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08-08-2020, 12:00 AM | #3 | |
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Join Date: May 2010
Location: Between Seattle & Tacoma
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Re: Starter motor--question before I reinstall
Quote:
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08-08-2020, 06:25 AM | #4 |
Senior Member
Join Date: Jul 2010
Location: United Kingdom
Posts: 1,441
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Re: Starter motor--question before I reinstall
Although a starter motor may spin nicely without load this doesn't necessarily mean it'll work satisfactorily when installed. I know of no easy way of load testing these things on the work bench .. it's a 15 minute job to fit it to the car and test it in situ.. and you get quicker after you've done it a few times
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08-08-2020, 07:36 AM | #5 |
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Join Date: May 2010
Location: new britain,ct 06052
Posts: 9,390
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Re: Starter motor--question before I reinstall
Make sure your grounds are good. No paint on either the ell housing or the mating surface of the starter.
Paul in CT |
08-08-2020, 07:59 AM | #6 |
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Join Date: May 2010
Location: Long Island, NY
Posts: 3,464
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Re: Starter motor--question before I reinstall
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Bob Bidonde |
08-08-2020, 12:30 PM | #7 |
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Join Date: Jul 2020
Posts: 11
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Re: Starter motor--question before I reinstall
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