200 tach drive
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=147634
Printed Date: 12 Sep 2025 at 3:11pm
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Topic: 200 tach drive
Posted By: clarkscreek
Subject: 200 tach drive
Date Posted: 17 Feb 2018 at 7:04pm
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The 200 I bought a year ago had a new 3 wire Delco alternator but no drive or cable. Can I put a tach drive on it just by pulling plug out of back of alternator. If so where's a good place to get the drive.
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Replies:
Posted By: DrAllis
Date Posted: 17 Feb 2018 at 8:19pm
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What you see as a plug is probably the needle bearing with a bottom to it. Besides, the shaft won't have a threaded hole in the end of it to accept the threaded in drive gear. So the answer is no.
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Posted By: clarkscreek
Date Posted: 17 Feb 2018 at 8:28pm
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Thanks, so I'll have to buy alternator with the tach drive then. Oh well my other tractors take the same alternator so I can just put it on the shelf till one goes down. Where is the best place to get a good alternator with the tach drive.
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Posted By: HagerAC
Date Posted: 18 Feb 2018 at 9:37am
I have a used working alternator with the tach drive in it. Was on a 190xt. You would have to take the dual pulley off of your alternator and put it on this one. 190xt only had a single fan belt
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30+ A-Cs ranging from a 1928 20-35, to a 1984 8070FWA, Gleaner R52
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Posted By: Joe(TX)
Date Posted: 19 Feb 2018 at 9:26am
Which Delco 3 wire alternator? External or internal regulator? The original used an external regulator. My 200 has an internal regulator alternator modified for the tack drive.
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1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A
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