Speedo question

fourbarrel

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May 5, 2003
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St George,New Brunswick,Canada
Before I start I want to clarify I'm not fixing up my sled to sell it so don't think my question is asked to screw anyone over.Now that that's out there here goes.I have a new to me sled,a former drag sled ( 02 SRX ), and the speedo was removed to make room for an egt gauge but I would rather have the speedo back in place but unfortunately the original is history,given away.What I would like to know is if I cant find a speedo with around the same mileage as what the sled is supposed to have on it,800-1000 miles,can I take apart a speedo and set it to the mileage I need it to read?
I know this sounds like a loaded question because if there was an easy way to do this unscrupulous people would be doing it now but seriously is there a way to take one apart without ruining it?
If not I guess I could always hook a drill up to it and run it for about 2 days lol and see if I can get the mileage where I need it.
 

your gonna probably have to run your drill like a few months steady.A drill doesn't run 50 to 100 mph at a time...hook up the drill and maybe by after xmas you may be good...
 
I suppose the best option would be to find one that has ultra high miles on it and run it around to what I need.

The dremel idea crossed my mind too but I'm afraid that would be a bit too fast,likely end up screwing up the needle on the speedo. :dunno:
 
With an "old" drill, hook it up w/ a zip tie to stay on and time how long it takes to spin 10 miles. Calculate from there how long it would take to spin it over to "zero" + the miles you want. As far as going in reverse, I personally have never tried it, but have heard that either: 1. it skews the odometer so that all the numbers are not even up/down & 2. that it would etch the numbers (giving someone a heads up that it was modified) but I say again I have never personally tried it. I had a car odometer once that I took apart and was able to manually set them all to zero (It was a 1972 Oldsmobile - It was for my benefit; not to sell it that way, it went to the crusher when I was done w/ it lol) Ideally you should look for 2 OD if possible, and try it with one to see if it works! Just my 2 cents!
 
I don't see the need to go through the trouble. You know how many miles to add to the amount the odometer has - just add 1,000 to it. There is no way to know exactly how many miles it had on it anyway if it was run without a speedometer, so whatever you change it to still is not going to be accurate.
 


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