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cnafarms 
Silver Level
Joined: 01 Jul 2011
Location: Mt. Airy, MD
Points: 140
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 Topic: 175 tach
Posted: 21 Apr 2019 at 1:21pm |
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Does anybody know where the tach cable goes on an Allis 175 diesel. The cable was unhooked and missing from mine and I’ve got no idea where it connects to. It has an alternator like 3 wire delco on it. Thanks for any and all help
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DMiller
Orange Level Access
Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 35766
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Posted: 21 Apr 2019 at 1:25pm |
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The original Alternator had a drive shaft off the back from the main alternator shaft, then there was a gear box that attached and the cable connected there. My 180 is similar.
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cnafarms
Silver Level
Joined: 01 Jul 2011
Location: Mt. Airy, MD
Points: 140
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Posted: 21 Apr 2019 at 4:08pm |
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Well this has been changed out or replaced anyway I can retro fit something in then
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allisbred
Orange Level Access
Joined: 28 Mar 2015
Location: Hanover Pa
Points: 1011
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Posted: 21 Apr 2019 at 7:33pm |
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As said, alternator should have a tach drive with 3 screws that attach the drive cable. That needs to be removed when replacing the oil filter. It would be cheaper to buy the correct alternator if not already on it. Another option is to a magnetic drive.
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DSeries4
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Joined: 12 Sep 2009
Location: Ontario, Canada
Points: 7644
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Posted: 22 Apr 2019 at 9:41am |
Here is what you need. DJs sells alternators with the drive coming out the back. The one on my 175 had been taken off 20 years ago, but stumbled across it when cleaning out the barn some years ago.
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