| mrtexas | -- 05-04-2013 @ 11:34 AM |
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How to fix this? Or who to send it to? The speedo never returns to 0, rather 10mph. I did an interstate hiway 10 mile marker test twice and both times the trip odometer read 10.3. Tires are 650R16(28.36), stock is 600R16(29.26). This would make the speedo read low by 3% Test vs GPS 30mph GPS speedo 38 60mph GPS speedo 67
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| supereal | -- 05-04-2013 @ 6:43 PM |
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See the reply to the above speedo question?
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| 40 Coupe | -- 05-05-2013 @ 4:11 AM |
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The speedometer has rotating magnets, and a meter movement. The magnets couple to the meter movement, through their lines of force. So between the speedometer cable rotating the magnets and the viewable meter movement there is no mechanical connection. Lubricating the shaft for the rotating magnets is fine and good but this will not effect the meter movement. When the rotating magnets stop the meter movement falls back to rest on it's stop. Either the meter movement is not returning fully back to it's stop position or the pointer was not installed correctly and points to 10MPH when it should be at 0. You may want to have it repaired and cleaned by a speedo shop, if you want to do it your self, you have to disassemble the speedo and see if the meter movement is hanging up and not going to the stop if so correct this, if the movement is going to the stop the pointer has to be pulled off and replaced in the correct position. DO NOT move the spiral spring that calibrates the speedo and returns the movement to the stop.
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| Grant | -- 05-05-2013 @ 5:01 AM |
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You might wish to consider leaving well enough alone, especially if you have have a speedometer which operates quietly and does not have an indicator needle which waves back and forth. Having driven thousands of miles to National meets as co-pilot in a '36 which had a very noisy and repeatedly-malfunctioning speedometer, yours sounds fairly reliable and pretty attractive to me. Perhaps you could consider buying an NOS unit? They do sell on Ebay from time to time.......usually in the range of $350.00 to $450.00 (photo attached of a nice Waltham unit). Rebuilding yours will likely cost that much, or more. Dan Driskell and Don Rogers are the EFV8 Club's 1935 and 1936 advisors. Their phone numbers are on page 95 of the March/April V8 Times. Probably they know of a competent rebuilder.
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