Farm Equipment - Allis Chalmers 200 needs more power

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Allis Chalmers 200 needs more power

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=212332
Printed Date: 24 Sep 2026 at 5:16pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Allis Chalmers 200 needs more power

Posted By: Sparks farm
Subject: Allis Chalmers 200 needs more power
Date Posted: 24 Sep 2026 at 9:49am

I have a stock 200 that i would like to have 15-20 more HP to help pull a Chopper is there a turbo or injector upgrade that would help without doing any pump work. Thanks

Replies:

Posted By: DrAllis
Date Posted: 24 Sep 2026 at 11:07am

A "stock" 200 tractor was 94 PTO HP. There never used to be a problem turning out the torque screw several turns (or removing it and replacing with a plug) and getting 115 PTO HP. Takes 5 minutes to do. This assumes your pump and injectors are in good condition. More HP comes from more fuel. A better turbo won't change things much if any. Same for injectors unless yours currently have plugged holes. Increasing the high idle really helps on forage equipment performance.

Posted By: Sparks farm
Date Posted: 24 Sep 2026 at 11:13am

So is the torque screw on the outside of the pump? I read on another forum that you have to take the top off the pump to get to it.

Posted By: DrAllis
Date Posted: 24 Sep 2026 at 11:31am

The torque screw is external and located just above where the lines attach to the hydraulic head. It sticks up/out at a 45 degree angle and has a plastic cap on it that unthreads. A 7/16" wrench and an allen wrench to adjust it OUT. Just remove the whole thing and adjust it 3 or 4 turns and replace. Swinging room isn't much on the pump. Removal of the pumps lid and governor guts is for roller-to-roller dimension and if your torque screw change isn't enough, that's where you go next. Remember your cooling system and tight fan belts. A couple hundred more RPM really helps on a chopper !!!