 speedo needle, wobbly needle |
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| cal914 |
 Aug 29 2012, 03:07 PM
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#1
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Member  Group: Members Posts: 321 Joined: 12-April 12 From: United Kingdom Member No.: 14,366 Region Association: None  |
my needle on my speedo wobbles up and down when in use doesn't stay at its correct speed just bounces up and down what causes this
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| underthetire |
Aug 29 2012, 03:40 PM
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#2
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
Bad cable
loose angle drive |
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| Valy |
Aug 29 2012, 04:11 PM
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#3
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Senior Member Group: Members Posts: 1,677 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California |
Lube the cable. If it doesn't help, there is dirt in the magnetic pickup inside the speedometer. Try lubing the speeding input shaft as well.
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| skaufmann |
Aug 31 2012, 10:41 AM
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#4
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Blissfully Ignorant Group: Members Posts: 103 Joined: 26-May 11 From: San Diego - College Area Member No.: 13,123 Region Association: Southern California |
Some clarification needed.
-What lube should be used? -What ends to lube? At speedo and/or at angle drive? -How hard is it to remove the cable at the speedo? |
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| Valy |
Aug 31 2012, 11:01 AM
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#5
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Senior Member Group: Members Posts: 1,677 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California |
QUOTE(skaufmann @ Aug 31 2012, 09:41 AM)  Some clarification needed. -What lube should be used? -What ends to lube? At speedo and/or at angle drive? -How hard is it to remove the cable at the speedo? Any oil is fine. Engine oil works well. It's usually the speedo side that gets dry because its higher. You literally pull the speedo and unscrew the cable end with your hand. Some electrical contacts may come loose before you notice so pay attention to the colors and locations. |
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| Elliot Cannon |
Aug 31 2012, 11:15 AM
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#6
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None 
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It could be that the cable has broken strands and they are catching and releasing on the cable housing as the cable turns. A sharp kink in the cable will also cause this.
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| zeezee |
Aug 31 2012, 10:32 PM
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#7
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Member Group: Members Posts: 115 Joined: 16-October 08 From: san ramon, ca Member No.: 9,651 Region Association: Northern California |
I messed my speedo cable up when yanking on the gauge cluster. Must have pulled and tweeked it too hard or something. It would bounce +/- 10 MPH when under 40.
A new cable fixed it. |
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