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185 alt with tach drive

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Category: Allis Chalmers
Forum Name: Farm Equipment
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=47370
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Topic: 185 alt with tach drive
Posted By: one54dodgetruck
Subject: 185 alt with tach drive
Date Posted: 15 Mar 2012 at 9:56pm
My buddy is in need of help finding a alternator for his 185 diesel with the proper tach drive ratio. We just spent 2 days on the road to get the tractor. Now hes getting it ready for haying this year. Does anyone have one laying around or know of one?
Thanks
Andrew


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2 WDs
B
B112
D14
D15
185
7040 pd



Replies:
Posted By: DSeries4
Date Posted: 15 Mar 2012 at 10:03pm
Just get your current one rebuilt.

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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '61 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080


Posted By: one54dodgetruck
Date Posted: 15 Mar 2012 at 10:05pm
his has been replaced with a non tach drive alt.
Andrew


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2 WDs
B
B112
D14
D15
185
7040 pd


Posted By: Eldon (WA)
Date Posted: 15 Mar 2012 at 10:10pm
Just calibrate the gascolator and mark it with a sharpie....if that don't work time the pto and adjust the throttle stop pin.

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ALLIS EXPRESS!
This year:


Posted By: HagerAC
Date Posted: 15 Mar 2012 at 10:56pm
Could probably find a used one from a salvage yard.  Finding a good used gear drive unit is nearly impossible though, the large gears are usually junk.  I just recently found a good one after looking for over a year.  Happy Hunting.

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30+ A-Cs ranging from a 1928 20-35, to a 1984 8070FWA, Gleaner R52


Posted By: Steve in NJ
Date Posted: 16 Mar 2012 at 6:32am
If someone has a Delco number or even an AC number, I may be able to get one if yer' interested. I'm not familiar yet with these 170-190 units, but I may be able to get the electrical parts needed for them. Heck, I might have an Alt on the shelf that would fit or work and not know it!
mailto:Steve@B&B" rel="nofollow - Steve@B&B


Posted By: DonDittmar
Date Posted: 16 Mar 2012 at 7:05am
Steve, I think there problem is with the mechanical drive tach part not electrical.....but maybe you can still fix them up........
AGCO number is 70255864 or Delco 1100887
 
This is for the 185, other may be the same


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Experience is a fancy name for past mistakes. "Great moments are born from great opportunity"

1968 D15D,1962 D19D
Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start


Posted By: Stan IL&TN
Date Posted: 16 Mar 2012 at 7:18am
Steiner has the tach drive assembly for $50.  It may not list it for the AC 185 but it lists the drive for a bunch of other brands.  I'll bet that it's the same as on the 185.  The calibration of the tach will be with the size of the pully on the altinator.
 
Don't rule out e-bay.  I found a rebuilder there that had one with the tach drive and he even converted it to a one wire set-up for me. 


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1957 WD45 dad's first AC

1968 one-seventy

1956 F40 Ferguson


Posted By: David(Stockbridge)MI
Date Posted: 16 Mar 2012 at 7:55am
Steiners Tach drive is for a massey / international, that's why it is NOT listed for an ALLIS. It looks the same but both gears are different tooth counts. We have the correct large gear and small gear in stock. The small gears is NOS from AGCO and the Large gear we have made. I have contacted  all the sellers on ebay that list it for an allis about the gear tooth count and they either come up with the wrong number or they don't respond because they know they are wrong. The units that Steiner has will work but the calibration will be off 20+%. If you use it for an hour meter for oil changes it's fine, if you use it for RPM it way off. CORRECT RATIO IS  45/12 the the one's on ebay and the ones that are sold by steiner's and others is 43/14. If there is math member here on the forum please crunch the number and report / respond back. David http://www.djstractorparts.com" rel="nofollow - www.djstractorparts.com


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All "NEW" Web Site http://www.djstractorparts.com

2035,A,U,UC,WF unstyled,WF styled,WC High Crop (cane),RC,B,IB,C,CA,WD,WD45,G,D10,D12,D14,D15,D15 II,D17,D19,WC styled,WC unstyled H3 crawler


Posted By: Butch(OH)
Date Posted: 16 Mar 2012 at 8:42am

If you have an auto electric shop near that has been around a spell they can get you the correct alternator, at least they could a year ago when I "corrected" our 220 of the same problem. You wil also need to purchase the required seperate regulator which is now electronic but housed in a case that loooks like the older units.  Some of the tach drive parts are available from AGCO, take first born, check book, stash money and pocket change.  Mine is aftermarket and David is correct the gear ratio being off. I corrected  mine inside the tach instead of messing with the gears as I didnt know he was reproducing them.



Posted By: David(Stockbridge)MI
Date Posted: 16 Mar 2012 at 10:13am
I guess I should say that one of the machine shops that we deal with is making them for us, we just helped pushing the idea and the need to have them made as we had a lot of request from our customers and that is how these type of parts make it to market.
Butch, do the old tachometers have a fast / slow adjustment screw? I kown after market don't have, at least not a hold through the can. THANKS


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All "NEW" Web Site http://www.djstractorparts.com

2035,A,U,UC,WF unstyled,WF styled,WC High Crop (cane),RC,B,IB,C,CA,WD,WD45,G,D10,D12,D14,D15,D15 II,D17,D19,WC styled,WC unstyled H3 crawler


Posted By: tonysac
Date Posted: 16 Mar 2012 at 12:52pm
just take the alt apart and hook onto one of the 3 stator wires and dada you got a tack feed wire,pulley size does calibrate it though


Posted By: stray
Date Posted: 16 Mar 2012 at 5:10pm
Originally posted by tonysac tonysac wrote:

just take the alt apart and hook onto one of the 3 stator wires and dada you got a tack feed wire,pulley size does calibrate it though
That is hard to do with a mechanical tach

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1969 190XT series 3


Posted By: kffischer
Date Posted: 16 Mar 2012 at 6:27pm
Originally posted by David(Stockbridge)MI David(Stockbridge)MI wrote:

Steiners Tach drive is for a massey / international, that's why it is NOT listed for an ALLIS. It looks the same but both gears are different tooth counts. . CORRECT RATIO IS  45/12 the the one's on ebay and the ones that are sold by steiner's and others is 43/14. If there is math member here on the forum please crunch the number and report / respond back. David http://www.djstractorparts.com" rel="nofollow - www.djstractorparts.com

Allis would be 3.75 to 1 and the other would be 3.0714 to 1
3.75:1 and 3.07:1
you should be able to figure out the % and rpm difference from there.  A speedometer to rear end ratio calculator online would also work.

karl f


Posted By: stray
Date Posted: 16 Mar 2012 at 7:33pm
When I took my alt in to have it work on, off my 190XT, the repair shop told me to take care of that one because the tach drive parts are getting hard to come by.

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1969 190XT series 3


Posted By: Joe(TX)
Date Posted: 16 Mar 2012 at 8:00pm
Valu Bilt used to have the alternators for the tach 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


Posted By: one54dodgetruck
Date Posted: 23 Mar 2012 at 3:56pm
does anyone reproduce the tach drive housings?
andrew


-------------
2 WDs
B
B112
D14
D15
185
7040 pd



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