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Tach drive gears for your distributers

Printed From: Unofficial Allis
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=9924
Printed Date: 22 Jan 2025 at 1:03am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: Tach drive gears for your distributers
Posted By: Butch(OH)
Subject: Tach drive gears for your distributers
Date Posted: 23 Mar 2010 at 3:58pm
A while back it was posted here about using a Corvette gear in the A-C distributer tach driives and there was some discussion I saw about some differances. Not sure how that thread played outbut I ordered one and due to snow, mud, busy etc I just got around to putting mine in. As compared to what was in my D-19 the replacement is identical in all critcal dimentions. I intalled it on the bench and it turns real smoth dictating that meshing is OK. i see no problems with them, save yourself $75 and a trip to your  Massey Chalmers dealer. Mine was $26 delivered to my door from Virginia Vettes. Nice folks too.



Replies:
Posted By: Matt MN
Date Posted: 24 Mar 2010 at 7:34am
I had ordered one also Fron "Virginia Vettes" But it doesn't work, the helical gear on mine measures 0.030" smaller in diameter then the original, and doesn't quite mesh well.   I don't want to put it in yet I am affraid it will strip the distributor gear.

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Unless your are the lead horse the scenery never changes!!


Posted By: Butch(OH)
Date Posted: 24 Mar 2010 at 7:50am
Hey Matt, I'm not sure what is going on with your gears, Maybe two different styles? Partsbook only shows one. Another thing that throws the mesh off is wear in the mainshaft and bushing, my distributer was worn so bad you could grab it at the top and close or open the points at will and my small tach gear was completely trashed in the middle where meshes but the mainshaft gear is about 90%. I refused to give AGCO $100 for the little gear and like I said my replacement is an exact match for the worn out one I removed and meshes perfectly, not sure why yours is differant?  I dont like mysterys but A-C tach mysterys are the story of my life lately, LOL. I am also trying to retore my 220 generator driven tach  to working condition.


Posted By: Skyhighballoon(MO)
Date Posted: 24 Mar 2010 at 11:29am
Butch - your 220 has a GENERATOR?????

:-)

Mike


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1981 Gleaner F2 Corn Plus w 13' flex
1968 Gleaner EIII w 10' & 330
1969 180 gas
1965 D17 S-IV gas
1963 D17 S-III gas
1956 WD45 gas NF PS
1956 All-Crop 66 Big Bin
303 wire baler, 716H, 712H mowers


Posted By: Butch(OH)
Date Posted: 24 Mar 2010 at 11:34am
Originally posted by Skyhighballoon(MO) Skyhighballoon(MO) wrote:

Butch - your 220 has a GENERATOR?????

:-)

Mike
Sorry, Dynamo driven tach drive


Posted By: gary ny
Date Posted: 24 Mar 2010 at 11:45am
Butch where do you get the cables from .I have a d19 and a d14 that need the square drive cable  


Posted By: Butch(OH)
Date Posted: 24 Mar 2010 at 12:25pm
I have not had to source the cables as mine are intact but  pretty sure Norm's toys will have them.


Posted By: Matt MN
Date Posted: 24 Mar 2010 at 12:27pm
Do you have the Part # for the drive gear you ordered?


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Unless your are the lead horse the scenery never changes!!



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