Farm Equipment - Allis 200 alternator.

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Allis 200 alternator.

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=201355
Printed Date: 02 Jul 2024 at 8:18pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Allis 200 alternator.

Posted By: LeakyBoot
Subject: Allis 200 alternator.
Date Posted: 15 May 2024 at 8:11pm

Did the 200 with factory air have a larger capacity alternator than the non cab models? Mine has a double v pulley. Thanks

Replies:

Posted By: DrAllis
Date Posted: 15 May 2024 at 8:19pm

All 200's had two belts driving the fan and alternator. Cab/AC tractors had 55 amp alternators and platform tractors may have been 32 amps.

Posted By: LeakyBoot
Date Posted: 15 May 2024 at 8:56pm

Thanks for the information. Reason I was interested is I just installed a new rooftop AC unit and it needs 26 or 27 amps all the time. I don't know what the factory AC pulled but it has a blower plus 2 fans on the condenser so must be about the same amp draw. JUst seem like the alternator was running pretty warn after only 3 minutes run time. My batteries may have been low on charge and it was putting quite alot in them at the same time.

Posted By: Lynn Marshall
Date Posted: 15 May 2024 at 9:48pm

I seem to recall putting a set of 72 Amp windings in a 200 once. It had a factory cab with air and was pulling an AC air planter that used at least two blower fans. I think that the winding were the only difference between the higher rated output.

Posted By: tbran
Date Posted: 16 May 2024 at 7:58am

We use the tach drive - 63 amp delco one wire alternator. A tad over 120.00 eliminates the old harness and voltage regulator.

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When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: Steve in NJ
Date Posted: 16 May 2024 at 2:19pm

Rule of thumb, anything with A/C should have at least a 65 amp Alternator on it for the charging chores. I'm with Tim on the upgrade to an "SI" Delco, but not a one wire. Anything with A/C along with other accessories that go with a cab, should be a 3 wire system. This way with the voltage sense circuit connected into the system, it monitors all load requirements when the system is loaded. Make sure on that A/C circuit you have at least a 30 amp relay or two to take the load off the Heater/A/C switch and circuitry. That is the reason the Alternator you have at present is getting warm or hot. It can't keep up with the load requirements that is put upon it. Time to upgrade. I offer a 3 wire Alternator Retrofit kit that would upgrade just the charging side of the system if interested....

Steve@B&B

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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife