Farm Equipment - Surging diesel motor

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Surging diesel motor

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=38692
Printed Date: 10 Sep 2025 at 6:51am
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Topic: Surging diesel motor

Posted By: Ryan Renko
Subject: Surging diesel motor
Date Posted: 10 Oct 2011 at 11:05am

We have a D17 IV diesel motor that is surging badly. It does it at idle speed and even at higher rpms. We checked the fuel bowl and lines but think it is something more serious. Any ideas on where to start?? Thanks in advance, Ryan

Replies:

Posted By: macec3(TX)
Date Posted: 10 Oct 2011 at 11:14am

Is the alternator belt tight??? My Perkins will surge and sound as if it is fuel starved when alternator belt gets loose.

Posted By: KGood
Date Posted: 10 Oct 2011 at 12:15pm

I wonder if it's the rubber ring broke that goes around the govenor weights.

Posted By: Roger Nolin
Date Posted: 10 Oct 2011 at 2:51pm

might be time to rebuild the pump