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DiyDave 
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Joined: 11 Sep 2009
Location: Gambrills, MD
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 Topic: D-series Tachometer question...
Posted: 26 Mar 2022 at 7:04pm |
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Originals that came on the tractors were white faced, right? I found a working one at a yard sale, today, but it has a black face. I think it was a replacement part, that was sold later, like in the 80's. Anyone know when the face color changed?
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AC720Man
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Location: Shenandoah, Va
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Posted: 26 Mar 2022 at 7:17pm |
 Here is our D15 series II after it was refurbished. This is the original design. Is yours like this?
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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DiyDave
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Posted: 26 Mar 2022 at 8:01pm |
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No, the one I picked up today has rpms, in the outer circle, but no speed ranges. Its mostly plain black space. Has an AC logo, and an hour meter, but that's about it. single arm needle indicator.
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JoeO(CMO)
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Posted: 26 Mar 2022 at 8:19pm |
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100 series
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DrAllis
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Posted: 26 Mar 2022 at 8:19pm |
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There's A-C (Allis-Chalmers) and there's AC (AC Delco) tachometers. The AC Delco versions were on all the hundred series, except the 160.
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DSeries4
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Posted: 26 Mar 2022 at 9:03pm |
Original tachs from original tractors...
D14: D15 Series 2, D17 Series 4: 190XT Series 1: 175 and 185:
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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DiyDave
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Posted: 27 Mar 2022 at 4:53am |
Looks a lot like the last picture, same dial rotation, and no blue power band... 
Edited by DiyDave - 28 Mar 2022 at 6:25pm
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