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dave babb

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Posted on Tuesday, January 10, 2006 - 12:44 pm:   

Just bought a 1985 MIC. The thing has a metric speedo. Can I simply change the gauge to get MPH? And, will it be accurate?

D/B
John MC9

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Posted on Tuesday, January 10, 2006 - 12:58 pm:   

I used my Garmin Street Pilot GPS to check the speedo
accuracy on the cars, and will do so on the bus as well.
If you have one, or can borrow one, it wouldn't be too
difficult to mark the metric speedo bezel accordingly.
Donald Lee Schwanke (Dontx)

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Posted on Tuesday, January 10, 2006 - 5:32 pm:   

Or another solution that I favor, I just marked the speeds in top gear on the Tach, based on the DeLorme GPS. Saves wear and tear on the old eyeballs, and makes an instrument scan a little easier. I had a brand new speedo, but loved this system so well I never even connected the wires on it. Not really my idea, the old early 50's 8N Ford tractors did it that way, loved it there too.
FAST FRED

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Posted on Wednesday, January 11, 2006 - 5:45 am:   

For folks that never bothered with a tach , the reverse works just as well.

Mark the speedo with the top and bottom speed in each gear , and going round a corner and downshifting becomes EZ to know what gear to select.

Works for me,

FAST FRED
Doug Dickinson (Dougd470)

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Posted on Wednesday, January 11, 2006 - 10:50 am:   

If you change out the speedo bezel from Metric to English, you will have the same acuracy afterward as you had before. If you put in a new speedo head you will get whatever accuracy the new unit has.

FF had a good idea for driving the coach. The speed is all relatuive, no matter how you measure it.

I would use a GPS (and I do) for an accurate speedo. The coach unit is "OK" , but for real accuracy, a GPS is the key. A new one costs so little these days that it is cost-effective also. If you are restoring the coach and want all original- have at it.

My $0.02 worth

Doug
St Louis MC9
Stephen Fessenden (Sffess)

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Posted on Wednesday, January 11, 2006 - 10:03 pm:   

100 kph is 62 mph. You will get used to it if you give it a little time. Make a conversion table and put it beside the instrument panel until you are used to the conversions. In Canada and Mexico, you won't have to convert.

120=75
110=68 (70)
100=60
90=55
75=45
50=30
Buswarrior (Buswarrior)

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Posted on Wednesday, January 11, 2006 - 10:36 pm:   

Dave, you've got a great conversation starter there, why would you want to remove it?

You've got a bus that'll do more than 100!

You've got a "Canadian" bus!

Both good bragging rights from where I'm from!

the exact conversion factors are .625 or 1.6 depending on which way you are converting.

FWIW, I'm running the big tachograph with MPH up here in Canada, built before we put metric speedos in.

If you change it out, don't throw it away, some Canadian will be happy to buy it from you!

happy coaching!
buswarrior

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