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| need help to identify if my speedo will work https://www.ausmini.com/forums/viewtopic.php?f=2&t=72607 |
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| Author: | Kermit [ Tue Aug 23, 2011 3:51 pm ] |
| Post subject: | need help to identify if my speedo will work |
Hi guys, I got my self a speedo i was told was out of a mini morris but am now being told that its from a moke, im curious to find out if it is going to work in my mini or will i have to source another one? my mini is about to go in for its road worthy check so that i can register it, any one got any ideas? the only numbers i can find on the back is on a sticker which are "119" or "611" depending on which way you look at it. Thanks again guys for all your help 
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| Author: | grey 64 [ Tue Aug 23, 2011 4:39 pm ] |
| Post subject: | |
do you mean is the speedo going to simply work, as in operate or work and be accurate in its reading once on your car? |
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| Author: | Irish Yobbo [ Tue Aug 23, 2011 4:48 pm ] |
| Post subject: | |
grey 64 wrote: do you mean is the speedo going to simply work, as in operate or work and be accurate in its reading once on your car?
Since he's taking it in for its roadworthy, it will need to be fairly accurate. If memory serves, your speedo is allowed to read up to 10% above the actual speed, and it cannot read any less than the actual speed. But don't quote me on those figures. |
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| Author: | justfanginaround [ Tue Aug 23, 2011 5:10 pm ] |
| Post subject: | |
what he would like to know is will the speedo read right. if its a moke seedo in a mini with 10's and we belive a 3.44 final drive, will it be ok ? how far out would it be and is there a list of what seepdo parts numbers belong to what ? |
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| Author: | Kermit [ Tue Aug 23, 2011 5:13 pm ] |
| Post subject: | |
sorry, yeah im trying to work out if it is going to be reasonably accurate so that i can use it on the road with out having to worry about getting fined or similar. |
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| Author: | blue_deluxe [ Tue Aug 23, 2011 5:33 pm ] |
| Post subject: | |
If youve got a gps you could go for a drive and see how accurate it is. |
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| Author: | 123grosso [ Tue Aug 23, 2011 5:42 pm ] |
| Post subject: | |
Or get a mate to drive next to you
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| Author: | VulcanBB18 [ Tue Aug 23, 2011 6:00 pm ] |
| Post subject: | |
Have a look here : http://www.tomsminisite.co.uk/speedo_ca ... mid=250646 For some background on it all. TPM (turns per mile) can be found on the speedo face, right near the odometer. cheers, Jacob |
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| Author: | Kermit [ Tue Aug 23, 2011 6:50 pm ] |
| Post subject: | |
thanks for the replies guys. from what i can tell it says 1408 tpm. which would throw it out by 9%. is there a way i can correct this with out it costing me a fortunte? or will i have to get another speedo? |
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| Author: | drmini in aust [ Tue Aug 23, 2011 7:09 pm ] |
| Post subject: | |
There is a 140KMH Moke speedo with 800 turns/km, that is pretty close to a Cooper S's 1280 turns/mile (suits 3.44 diff and 10" wheels). the 800 is marked on the front face..... 
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| Author: | 1071 S [ Tue Aug 23, 2011 7:35 pm ] |
| Post subject: | |
Some one measures speedo accuracy???? Not in NSW. Run it against a GPS and draw up a correction chart. Any instrument shop will calibrate your speedo - which is adjustable . The odometer is not "adjustable" so needs physical correction of the associated gearing (which is not too difficult). Cheers, Ian |
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| Author: | Kermit [ Tue Aug 23, 2011 7:38 pm ] |
| Post subject: | |
ok thanks guys ill test it with a gps and might just get it adjusted if not ill look for the 800 moke one. cheers again guys much appreciated
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| Author: | drmini in aust [ Tue Aug 23, 2011 7:51 pm ] |
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Kermit wrote: ok thanks guys ill test it with a gps and might just get it adjusted if not ill look for the 800 moke one.
cheers again guys much appreciated The other common Moke 140KMH one is 860 turns/km (also is marked on the front face). I put one in Barney (10" wheels) with a 3.64 diff, and it was spot on over the 5km test markers on the M4. |
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| Author: | Kermit [ Tue Aug 23, 2011 11:18 pm ] |
| Post subject: | |
will definately have a look and see what i can find. thanks for the help
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| Author: | Asphalt [ Wed Aug 24, 2011 12:10 am ] |
| Post subject: | |
Connect the speedo cable to a drill and try old and new speedo. If they both show the same speed at sthe same drill RPM - it'll fit. If not, you need to do the math as has been described. |
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