Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

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

Discussion Forum

JD70 Flywheel Walks

Welcome Guest, Log in or Register
Author 
ToddF

02-06-2003 14:37:10




Report to Moderator

I was out pushing snow with my Jd70 gas last night when I developed a tick. Well after some poking around I've determined that the flywheel has walked towards the end of the crank shaft and opened up the thrust clearance enough that something internal has started to touch where it shouldn't! My question is what does the tin nut do that looks like it might hold the flywheel on? LOL. What is the trick to keeping the flywheel bolts from loosening? Should I use some thread locker on them, or have I just not tightened them enough? The splines look good and there isn't any noise from a loose flywheel. The only sign of looseness is that it has walked. It has been bored and stroked and is capable of putting out a fair amount of Hp above stock. Have any of you had trouble keeping the flywheels on these things as a result? I'd like to know what any of you have experienced.....ToddF.

[Log in to Reply]   [No Email]
PeteNY

02-09-2003 06:38:31




Report to Moderator
 Re: JD70 Flywheel Walks in reply to ToddF, 02-06-2003 14:37:10  
Todd, Ours loosened up very quickly, tightened her, and this really didn't work, found that the splines had opened a little. We had a pull that weekend and didn't want to have her down long enough to wait for Dengler's to ship us a taper lock, we used some green loc tite on both the splines and the bolts, figuring we would replace it this winter...still tighter'n a new brides suitcase! Pete



[Log in to Reply]  [No Email]
Eric

02-07-2003 05:12:11




Report to Moderator
 Re: JD70 Flywheel Walks in reply to ToddF, 02-06-2003 14:37:10  
Stock 70's have the same problems with the flywheels. Go get some grade 8 fine thread bolts. You can tighen them more than a coarse thread. If you have run it loose long enough to hurt the splines, then start looking into a taper-lock. Also start a regular maintenance routine to check the crank end play to see if it is moving. As for tighening, I use a 6 foot extension and give it all I can.



[Log in to Reply]  [No Email]
G Taylor

02-07-2003 08:14:34




Report to Moderator
 Re: Re: JD70 Flywheel Walks in reply to Eric, 02-07-2003 05:12:11  
Using a torque wrench on dry clean 3/4" grade eight corse thread bolts with hardened washers is 375 ft lbs. Any more and the clamping force drops instead of increasing.



[Log in to Reply]  [No Email]
Jim F.

02-07-2003 07:01:45




Report to Moderator
 Re: Re: JD70 Flywheel Walks in reply to Eric, 02-07-2003 05:12:11  
Carefull with the grade 8 fine thread bolts!!! It is very easy to bust the flywheel with them. With the fine thread you do not realize how much more pressure you are putting on the cast flywheel!!! POP... been there done that.



[Log in to Reply]  [No Email]
Eric

02-07-2003 09:53:41




Report to Moderator
 Re: Re: Re: JD70 Flywheel Walks in reply to Jim F., 02-07-2003 07:01:45  
I'll keep that in mind Jim. But, this has worked for me on a 70 gas and a 730 diesel with no breakage or movement. Maybe I'm just lucky.



[Log in to Reply]  [No Email]
Bill V

02-06-2003 15:22:53




Report to Moderator
 Re: JD70 Flywheel Walks in reply to ToddF, 02-06-2003 14:37:10  
I have a friend that has had that same problem with a 70 that has been bored and stroked. He ended up putting a taper lock flywheel on his to keep it from coming loose, however he does use his on the farm regularly. Loctite will definitly help and try to get the bolts as tight as possible.



[Log in to Reply]  [No Email]
a puller

02-06-2003 16:56:16




Report to Moderator
 Re: Re: JD70 Flywheel Walks in reply to Bill V, 02-06-2003 15:22:53  
if u drill a hole in the end of the crank, u can make a plate with a recession to keep it on. Just don't break off the tap.
A puller



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


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