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| Speedo reading and cause of difference question https://www.ausmini.com/forums/viewtopic.php?f=2&t=87139 |
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| Author: | BBY755 [ Mon Sep 08, 2014 6:10 pm ] |
| Post subject: | Speedo reading and cause of difference question |
Hi all, Had my speedo reco'd and calibrated a few years ago and recently using GPS found that at 100kph shows 62mph (in between needle wobbles!) which is correct. Problem is, it is out at most other speeds....e.g at 80kph is showing 45mph instead of 50mph on the speedo. Is it the speedo drive gear? Had to put a new one in years ago before I had the speedo showing anything and then had it calibrated. Thanks for any clues.... |
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| Author: | Morris 1100 [ Mon Sep 08, 2014 6:22 pm ] |
| Post subject: | Re: Speedo reading and cause of difference question |
I think it is the speedo itself. |
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| Author: | BBY755 [ Mon Sep 08, 2014 6:34 pm ] |
| Post subject: | Re: Speedo reading and cause of difference question |
Bugger, Thanks Morris. Hope the bloke is still there at the instrument repair shop! |
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| Author: | Morris 1100 [ Mon Sep 08, 2014 6:56 pm ] |
| Post subject: | Re: Speedo reading and cause of difference question |
How accurate is the odometer? If the odometer is correct the speedo gear is the right ratio. |
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| Author: | BBY755 [ Mon Sep 08, 2014 7:22 pm ] |
| Post subject: | Re: Speedo reading and cause of difference question |
Good point. Need to do a run with the GPS to check that..... |
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