Farm Equipment - 1961 GAS D15 ser.1 fast idle

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1961 GAS D15 ser.1 fast idle

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=175207
Printed Date: 25 Sep 2025 at 3:45pm
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Topic: 1961 GAS D15 ser.1 fast idle

Posted By: KYrod
Subject: 1961 GAS D15 ser.1 fast idle
Date Posted: 16 Oct 2020 at 11:27am

I just got everything back on this tractor. Initial prob. was it would quit running under load...just like you turned it off. One problem led to another and after points, coil, condenser, voltage regulator, recored radiator, and water pump. It started this morning with no problem.

However, it seems to be idling fast. What might I have done to change this? How do I correct it?

Replies:

Posted By: Tracy Martin TN
Date Posted: 16 Oct 2020 at 2:00pm

Probably the linkage to carb, could be that things are correct now also, helping RPMs. If it is just a little probably carb adjust or idle stop screw . If really fast, could be governor linkage from removal and replacement of water pump and such. Let us know. Tracy

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No greater gift than healthy grandkids!

Posted By: DrAllis
Date Posted: 16 Oct 2020 at 7:48pm

Low idle speed adjustment screw is on the inside (towards the engine block) and takes a small short flat blade screw driver. Push on this screw first to see if it idles slower. If it does, your hand throttle linkage needs to be tweaked a bit to force it to fully idle down. If it doesn't, turn the screw ccw until it idles where you want it. This info is in your Owners Manual.