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04-07-2020, 08:33 AM | #1 |
Senior Member
Join Date: Oct 2019
Location: Stoneboro PA
Posts: 120
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1929 Sport Coupe speedmometer
New to Model A's. My speedometer is bouncy, sometimes it is steady but most time not. Is this normal?, or is there a problem. Thanks in advance.
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04-07-2020, 08:56 AM | #2 |
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Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,431
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Re: 1929 Sport Coupe speedmometer
It could be a cable that is kinked causing some drag and twisting or it could be a problem with the bearings in the speedometer. If the drag cup is catching on the magnet rotor then it will cause your symptoms. The magnet rotor has to spin inside the drag cup without any contact and loose bearings can cause contact.
Last edited by rotorwrench; 04-07-2020 at 10:10 AM. |
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04-07-2020, 09:31 AM | #3 |
Senior Member
Join Date: Oct 2019
Location: Stoneboro PA
Posts: 120
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Re: 1929 Sport Coupe speedmometer
It's a floating kind of bounce it does not jerk as if there is a kink
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04-07-2020, 10:22 AM | #4 |
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Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,044
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Re: 1929 Sport Coupe speedmometer
The first thing I would di is clean and regrease the speedometer cable (inside the housing).
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04-07-2020, 10:54 AM | #5 |
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Join Date: May 2010
Location: Western MT
Posts: 218
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Re: 1929 Sport Coupe speedmometer
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