Farm Equipment - Rattling noise in engine of D17, series3

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Rattling noise in engine of D17, series3

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=206432
Printed Date: 26 Apr 2025 at 8:16am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Rattling noise in engine of D17, series3

Posted By: Kruger
Subject: Rattling noise in engine of D17, series3
Date Posted: 25 Apr 2025 at 7:39pm

Today, while the tractor was idling, I noted a rattling noise from the front of the engine. It appeared to originate near the belts. It appeared that the belt appeared to stretch and contract while the engine was running. The belt to the alternator did not appear loose. Due to a time constraint, I did not look further. I had the engine rebuilt last year. Let me say that I am no a mechanic. Any ideas of possible causes. Thanks for whatever help you can provide.

Replies:

Posted By: Ed (Ont)
Date Posted: 25 Apr 2025 at 7:48pm

Get a good hold on the fan blades. Wiggle back and forth to see if any play in water pump. Do the same with generator or alternator.

Posted By: RedHeeler79
Date Posted: 25 Apr 2025 at 8:09pm

Possibly the soldering broke loose on fan shroud and fan blades are contacting loose shroud?

Posted By: DrAllis
Date Posted: 25 Apr 2025 at 8:29pm

Water pump. Generator bearing. LOOSE CRANKSHAFT PULLEY.

Posted By: Kruger
Date Posted: 25 Apr 2025 at 9:08pm

Thanks gentlemen!