The Ford Barn

bo8109b · 04-02-2013, 03:42 PM

Want to set the odometer to zero. As opposed to the Ford speedometer where you remove the bezel and two screws on the back to access the mileage drum, the Mercury unit has no screws on the back and requires removing the bezel then the needle following with the speedo face. Question is how do you remove the needle? Carl

ford3 · 04-02-2013, 03:51 PM

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if all you want to do is change the needle position you dont have to remove it, just stop the drum that the needle shaft is connected to and twist the needle on the shaft, the needle is held to the shaft by interference fit, the hole in the needle is smaller than the shaft so it wont move on its own weight, if you want to remove the needle stop shaft from turning and grab the needle with two fingers and gently twist it back on forth as you pull up on it

04-02-2013, 03:42 PM	#1
bo8109b Senior Member Join Date: May 2010 Location: New Glarus, WI Posts: 142	1948 Mercury speedometer Want to set the odometer to zero. As opposed to the Ford speedometer where you remove the bezel and two screws on the back to access the mileage drum, the Mercury unit has no screws on the back and requires removing the bezel then the needle following with the speedo face. Question is how do you remove the needle? Carl

04-02-2013, 03:51 PM	#2
ford3 Senior Member Join Date: Oct 2012 Location: oroville calif. Posts: 1,453	Re: 1948 Mercury speedometer Sponsored Links (Register now to hide all advertisements) if all you want to do is change the needle position you dont have to remove it, just stop the drum that the needle shaft is connected to and twist the needle on the shaft, the needle is held to the shaft by interference fit, the hole in the needle is smaller than the shaft so it wont move on its own weight, if you want to remove the needle stop shaft from turning and grab the needle with two fingers and gently twist it back on forth as you pull up on it