 Speedometer needle bounce, What causes it? |
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| John |
 Jul 17 2006, 09:24 PM
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#1
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member? what's a member?  Group: Members Posts: 3,393 Joined: 30-January 04 From: Evansville, IN (SIRPCA) Member No.: 1,615 Region Association: None  |
I tried the search, but didn't find anything relevent.
What causes the speedometer needle to bounce until 30-40 MPH is reached? The speedometer works nicely on the bench.... Is it a sticky cable (slip stick) or is it a worn out miter gear at the trans? Could this be made worse by bad routing of the cable sheath? (A kink in the cable) All opinions are welcome. Thanks for looking. |
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| SirAndy |
Jul 17 2006, 09:27 PM
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Resident German Group: Admin Posts: 41,640 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
it's the cable. *every* 914 i have driven had that same issue.
as long as it get's smooth > 20mph, the cable is fine, otherwise, it's about to snap ... (IMG:style_emoticons/default/smile.gif) Andy |
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| newto914s |
Jul 17 2006, 09:29 PM
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#3
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Senior Member Group: Members Posts: 561 Joined: 16-February 04 From: Thornton, CO Member No.: 1,663 |
good to know.
Thanks Andy |
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| Toast |
Jul 17 2006, 10:01 PM
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#4
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Not bad for carrying sway bars. Group: Members Posts: 3,377 Joined: 20-January 04 From: Las Vegas Member No.: 1,580 Region Association: Southwest Region |
Mine does the same thing. And my tach whips between 1 to 4500 until running steady.
Kinda musical looking. (IMG:style_emoticons/default/tunez.gif) Now.......when I wear my magnetic bracellet......... (IMG:style_emoticons/default/wacko.gif) |
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| Stieve |
Jul 17 2006, 10:06 PM
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#5
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Senior Member Group: Members Posts: 587 Joined: 6-May 06 From: Sacramento Member No.: 5,996 |
Mine does the same thing with a NEW GEMO cable, I wish I knew as well...
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| pfierb |
Jul 18 2006, 04:08 AM
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#6
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oldest member Group: Members Posts: 606 Joined: 1-May 05 From: The sign of good government in Connecticut is to keep raising taxes Member No.: 4,008 |
Mine does the same thing but I eliminated about 80% of the needle shake by smoothing out the cable routing near the front fire wall forward of the pedals....above 35mph it's smooth as silk.
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| Stieve |
Jul 18 2006, 10:10 AM
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#7
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Senior Member Group: Members Posts: 587 Joined: 6-May 06 From: Sacramento Member No.: 5,996 |
Ah! George just informed me to NOT route it throught but above the engine mounting bar. I will let you know.
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| SirAndy |
Jul 18 2006, 12:17 PM
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#8
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Resident German Group: Admin Posts: 41,640 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Stieve @ Jul 18 2006, 09:10 AM)  Ah! George just informed me to NOT route it throught but above the engine mounting bar. I will let you know. the hole in the engine mount bar is for the clutch cable! route the speedo cable above the bar and zip-tie the two together close to the clutch wheel to prevent the speedo cable from dragging on the ground ... (IMG:style_emoticons/default/smile.gif) Andy |
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