8 replies to this topic

[Boothy]

Hi all, not just trying to do an old wheeler dealer trick. I have just bought some second hand clocks with a rev counter and the new set has 54000 on, but my old clocks and car has only done 32000 so was just wanting to know if there is any easyier way then putting the drill on and taking it all the way back round? Or can you just swap the mileometer over?

Thanks Jack

[samsfern]

you can carefully slide the numbers to one side, one a time, and push them back a couple of digits, be very careful and dont use too much force though.

[minimaff]

Cant you just spin the numbers around

Mad that its legal to do it on an older car rather than a new car.

[Dan]

Fraud is illegal, moving some numbers around isn't. If you are doing it for fraudulent reasons it's illegal, if not it's fine.

It will however quite likely always be obvious that this has been done. The numbers almost never line up properly when anyone has fiddled with them. If both models of speedo are the same, the speedo head can be swapped from one case to the other easily.

You do realise that the tacho is a seperate instrument that just sits next to the other two though don't you? You can keep the entire original set, all you need is the tacho, the 3 clock PCB and the brackets and binnacle.

[AVV IT]

You could not bother and just drop the old speedo out of the old case and swap it across to you're new one, it's just two screws on the back of the and also the clock surrounds and cover on the front that holds it in place in the housing!

[Boothy]

Yes i do know the rev counter is seperate but the new set of clocks are much nicer and the speedo goes to 110 instead of 90.

[surfblue63]

If you are changing from one type of speedo to another you may find that the new one needs recalibration to suit your car. It would be easier (and cheaper) to switch your original speedo for the new one.

For more info on speedos go to

http://www.guess-wor...Tech/speedo.htm

[dklawson]

wanting to know if there is any easyier way then putting the drill on and taking it all the way back round?

Or can you just swap the mileometer over?

It is time for what appears to be my annual comment about why the drill method is not feasible. I'm going to use some very generic numbers below, not specific to ANY particular Mini.

Let us assume the speedometer is calibrated for 1000 turns/mile (a common aftermarket calibration). Let us also consider that a high-speed drill motor may operate close to 2000 RPM.
Therefore, to turn the odometer forward by 1 mile requires (1000 rev/mile / 2000 rev/minute) = 1/2 minute/mile or... 2 miles/minute
Let us also assume that you need to move the odometer by 60,000 miles. (60,000 miles / 2 miles/minute) = 30,000 minutes.
30,000 minutes = 500 hours = 20.8 days (running the drill 24/7)
You can see that running an odometer forward with a drill is not very practical.

The next question was about the "mileometer" (odometer). IF the two speedometers have the same turns/mile calibration then you could conceivably move the odometer from the old speedo to the new one. If the two speedometers have a different calibration (in turns/mile) then you cannot swap the odometers as their gearing is different. However, I cannot imagine why you would NOT buy the same speedometer calibration unless you were changing speedometers to account for changes in final drive and/or tire size.

[tadleysimon]

i can pm you a guide i wrote on how to change the milage if you want mate?

Let me know