Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Kountry Life
John Deere Tractors Discussion Forum

John deere 70 diesel flywheel

Welcome Guest, Log in or Register
Author  [Modern View]
Jim Pollock

11-08-2019 16:49:27

Report to Moderator

My son bought a 70 diesel and we got the manual for it today. The pictures show a flywheel with pinch bolts to tighten it on the crankshaft. This tractor has a taper lock but the flywheel is solid. it doesn't have the pinch bolts. Do they supply a whole new flywheel when you buy a taper lock or is this flywheel actually off something else. It seems to me that the flywheel needs to go on farther. The square for tightening the taper lock is only half way on when it is tight.

[Log in to Reply]   [No Email]
Jim Pollock

11-09-2019 04:43:24

Report to Moderator
 Re: John deere 70 diesel flywheel in reply to Jim Pollock, 11-08-2019 16:49:27  
We also found a bad bearing in the idler timing gear that is mounted between the crank and cam. We have a new bearing coming for that. I guess these tractors are known for that.

[Log in to Reply]  [No Email]
Jim Pollock

11-09-2019 04:40:45

Report to Moderator
 Re: John deere 70 diesel flywheel in reply to Jim Pollock, 11-08-2019 16:49:27  
Quoting Removed, click Modern View to see

Thanks for the reply. Our flywheel must be a new recast one because it looks just like the new one you show in the pictures. It doesn't have the holes or the pinch bolts.
Does your square nut go all the way on when it is tight. Ours is only about half way on. Also our crankshaft has more endplay than it should. We took it all apart and it just looks like it needs reshimed to get the proper endplay but this requires a spacer to simulate the flywheel and using the original nut that threaded onto the crankshaft. the crankshaft threads are really bad so I doubt the nut would fit even if we had one. I am thinking about drilling the end of the crank for a bolt and a big washer to tighten the spacer against the crankshaft for checking endplay.

[Log in to Reply]  [No Email]
John Deere D

11-09-2019 09:47:25

Report to Moderator
 Re: John deere 70 diesel flywheel in reply to Jim Pollock, 11-09-2019 04:40:45  
A tool I built so as to drill accurately the end of several styled JD "Ds". Tapped and threaded to 5/8 11 TPI:

Shims are placed between the end of the Crank, and the RETAINER WASHER and or between the FACE of the RETAINER WASHER and the FACE of the FLY WHEEL:

Flywheel cannot move linearly ...

Bob...Retire Power Engineer....Having fun.:)

[Log in to Reply]  [No Email]
Dan in Ohio

11-09-2019 07:54:17

Report to Moderator
 Re: John deere 70 diesel flywheel in reply to Jim Pollock, 11-09-2019 04:40:45  

That spacer is just a piece of pipe that just fits over the crankshaft and it measures 3 1/4 inch if I remember correctly, check manual to be sure. Go to your your local plumbing supply store and have them cut one for you. I bought a new original nut to hold that spacer and cleaned the crank treads with a stiff wire brush. Be sure to block the crank to the left when adjusting the end play with clutch engaged. As Blksmok said the slinger maybe too worn to get the proper adjustment without being replaced. Sometimes Sharpes has some good used ones at a reasonable price. If I remember correctly the big square nut seemed to go on far enough . Remember the collet needs to go on first and slide it on till it hits as shown in my pics. Then the flywheel goes onto the collet by hitting the large surface with the biggest sledge you can find, think I used a 12lbs, 16 lbs is recommended . Hit it just ONCE, then tighten big nut using a huge pipe wrench. You might want to contact "Blksmok" from this site as his knowledge of these tractors is best IMHO.

[Log in to Reply]  [No Email]
4010 puller

11-09-2019 07:35:12

Report to Moderator
 Re: John deere 70 diesel flywheel in reply to Jim Pollock, 11-09-2019 04:40:45  
They come with new flywheel and the hub that slides on crank.it takes a little time setting crankshaft endplay , and a lot of hits with big sledgehammer, hit flywheel one hit at a time alternating sides and snug up big nut every time you hit it

[Log in to Reply]  [No Email]
Dan in Ohio

11-08-2019 20:02:36

Report to Moderator
 Re: John deere 70 diesel flywheel in reply to Jim Pollock, 11-08-2019 16:49:27  

Here is some of my experience with an original (Allen Machine Works) taper lock flywheel. I have a printed copy of their installation procedure somewhere and know I have posted it online before, should be able to google the procedure.

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

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). We have the parts you need to repair your tractor - the right parts. Our fast shipping, low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums

Copyright © 1997-2019 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