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Generator for 271

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=182981
Printed Date: 24 Apr 2024 at 8:08pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Generator for 271

Posted By: WaltDevore
Subject: Generator for 271
Date Posted: 01 Sep 2021 at 3:36pm

Looking the motor generator on a 1951 Detroit 271 Allis Chalmers HD5. Thanks!

Replies:

Posted By: steve(ill)
Date Posted: 01 Sep 2021 at 4:35pm

some good reading and ideas........

https://www.allischalmers.com/forum/need-a-hd5-generator_topic182395.html" rel="nofollow - https://www.allischalmers.com/forum/need-a-hd5-generator_topic182395.html

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Like them all, but love the "B"s.

Posted By: WaltDevore
Date Posted: 01 Sep 2021 at 9:09pm

Thanks for the link. Good info!

Posted By: Coke-in-MN
Date Posted: 02 Sep 2021 at 11:13am

Works well to replace generator with Delco 10SI alternator .
Using a single wire hookup it is all self contained and no external regulator is needed .

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: WaltDevore
Date Posted: 02 Sep 2021 at 12:07pm

Do you think the double belt pulley would mount to that shaft or does one go with a single belt.? Thank You.

Posted By: Ray54
Date Posted: 03 Sep 2021 at 11:54am

The double belt pully on mine fit the Delco alternator that I used. It has been some time since I messed with it, but the mounting was not hard. Mostly getting the tightener to fit.

Posted By: Coke-in-MN
Date Posted: 06 Sep 2021 at 12:28am

Pulley interchanges - only thing belt speed with large pulley means you need to rev the engine to get it to excite and charge first time .
I found a 2 belt pulley of a GMC truck alternator double groove that was steel (cast) then put in lathe and machined it to the wider belt size - it was a lot smaller diameter so dont have to do that step of high RPM to get it to charge .

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."