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Stewart Warner 1962-1967 type 540 speedo ID

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George57
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Stewart Warner 1962-1967 type 540 speedo ID

#1

Post by George57 » Wed Dec 21, 2011 3:32 pm

Hi ! I bought a refurbished 1962-1967 type 540 speedometer for my small HD speedo collection and am a bit puzzled by the ink markings on the back of the speedo. I read 540 JG 8 and can understand 540 G 8 being type 540 G and 8 for production month August, but am wondering why J stands in front of G and if J means productionyear 1965 here. Or is it refurbished with a NOS housing and do NOS housings have special numbers in ink ? Would be nice to know more about the ID of this speedo, thanks for info and my best wishes for 2012 !!!

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Ohio-Rider
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Re: Stewart Warner 1962-1967 type 540 speedo ID

#2

Post by Ohio-Rider » Wed Dec 21, 2011 6:00 pm

Hi George, A fellow member just showed this list to me last week. It may be of help to you as well.
http://www.ruiter.ca/mc/info/SWSpeedoDating.html" onclick="window.open(this.href);return false;
Steve

George57
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Re: Stewart Warner 1962-1967 type 540 speedo ID

#3

Post by George57 » Wed Dec 21, 2011 10:05 pm

Thanks Steve, but I already saw that info and thought a 540 speedo from the sixties would read 540G J8 for type 540G, year 1965 and month August. But on my speedo it reads 540JG8, so the J and the G seem to have switched. But Bruce Palmer mentions 540-G and then the production month, don't know if the - means there should be a letter in front of the G depending on the production year. Bruce does not go into this any further so I had to ask the Stewart Warner specialists in this forum.

58flh
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Re: Stewart Warner 1962-1967 type 540 speedo ID

#4

Post by 58flh » Thu Dec 22, 2011 2:52 pm

George I am running the exact same speedo-but no j on mine sorry--Im sure somebody knows forsure!--58flh :!:

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Re: Stewart Warner 1962-1967 type 540 speedo ID

#5

Post by FlatHeadSix » Thu Dec 22, 2011 3:42 pm

George57 wrote: it reads 540JG8, so the J and the G seem to have switched.
George,
I don't think the letters are switched. "J" is an additional model identifier, "G" is the year (1963) and "8" is the month (August). Stewart-Warner added a lot of additional letters to the ink stamp to identify models made for specific purposes, smetimes there were more than one additional letter. Here's a pic of a '74 shovel speedo, it has 2 additional letters "AR" (probably police)
mike
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Bosheff
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Re: Stewart Warner 1962-1967 type 540 speedo ID

#6

Post by Bosheff » Fri Dec 23, 2011 6:24 pm

Earlier speedos had a cut out in the side to mount the hand lock to freeze the needle. Off the top of my head I don't know for sure if they were still available in 1974. Some years also were designated for police use on the face of the speedo....bosheff

George57
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Re: Stewart Warner 1962-1967 type 540 speedo ID

#7

Post by George57 » Mon Jan 30, 2012 1:06 pm

This mystery is solved; I contacted the seller of the speedo and he gave me the name of the restorer. I mailed the restorer and in his reply he told me he accidently must have switched the G and J so it should read 540G J 8. I will contacted a dutch restorer of speedo's and he is willing to correct this, so all's well that ends well !

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