Farm Equipment - RPM UM Engine

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RPM UM Engine

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=189521
Printed Date: 08 Sep 2025 at 8:39am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: RPM UM Engine

Posted By: Wot
Subject: RPM UM Engine
Date Posted: 16 Jul 2022 at 1:58pm

Hello,

What is the way to decrease governor speed on a UM engine. When mine needs to pull, it makes to much rpm’s.
I thought it needs to be done back the plate on the plate on the push rods?

Is there a standard way to adjust so it is around factory rpm’s?

Thanks!