TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

John Deere Tractors Discussion Forum

Rattle from fan shaft on 50 A

Welcome Guest, Log in or Register

Author

02-24-2004 17:23:28

Report to Moderator

My 50 JD A has a very distinct rattle coming from the casing that encloses the fan shaft. Is this normal for this age tractor? The fan turns fine but would like to know if there is anything I can do at this point in time to stop a problem before it occurs. I read the post by Mr Blankenship earlier and it brought this to mind.

[Log in to Reply] [No Email]

buckeye al

02-25-2004 14:51:49

Report to Moderator

Re: Rattle from fan shaft on 50 A in reply to BB, 02-24-2004 17:23:28

Nother thing it could be.... is a stuck generator pulley. The splined generator pulley is supposed to float freely along the fan shaft. The spring between the pulley & the fan clutch plus another spring inside the front bearing housing work together to keep the fan shaft bearings tight. The spring inside pushes the whole shaft forward to keep the rear cone tight in the bearing. The front spring between the fan & generator pulley works to push the front bearing's inner cone into the bearing keeping it tight. If all is well the fan shaft runs on spring loaded bearings with zero play at all times. If the pulley is stuck on the shaft it cannot keep the front bearing tight. Once stuck the bearings wear, the shaft runs loose and begins to rattle especially at fast idle. If the inside spring is broken you'll get a similar result.

[Log in to Reply] [No Email]

Ralph - WI

02-24-2004 21:23:12

Report to Moderator

Re: Rattle from fan shaft on 50 A in reply to BB, 02-24-2004 17:23:28

Another item to check are the clutch disks that allow the fan to slip under rapid acceleration. One of the clutch disks broke up on my '50 A and it intermitently sounded like the fan was brushing against the radiator or like a bushel of tin cans was being transferred to a dumpster. You might be able to tell by rotating the fan against that clutch. There is no cure other than replacement. I read someplace that on a B, one can wiggle the gov and fan shaft out without removing the hood etc, but I don't think this is possible on the A.

[Log in to Reply] [No Email]

Clooney

02-24-2004 17:35:29

Report to Moderator

Re: Rattle from fan shaft on 50 A in reply to BB, 02-24-2004 17:23:28

BB, check the bolts for being tight that hold the front of the fan shaft to the tractor frame & front bracket to the fan shaft.. If those bolts work loose they will allow a pretty pronounced fan tube rattle..

~If it sounds more like it's in the rear & light rattle it could be a failing vent pump..

~There is also a possibility the fan shaft bearings are getting worn & loose..

~Your noise is pretty hard to diagnose over the internet without hearing it...

[email protected]

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home | Forums

Copyright © 1997-2023 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy